JPH08974B2 - Alkaline earth metal complexes stable in air - Google Patents
Alkaline earth metal complexes stable in airInfo
- Publication number
- JPH08974B2 JPH08974B2 JP32496991A JP32496991A JPH08974B2 JP H08974 B2 JPH08974 B2 JP H08974B2 JP 32496991 A JP32496991 A JP 32496991A JP 32496991 A JP32496991 A JP 32496991A JP H08974 B2 JPH08974 B2 JP H08974B2
- Authority
- JP
- Japan
- Prior art keywords
- dpm
- alkaline earth
- earth metal
- thin film
- metal complex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Chemical Vapour Deposition (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、アルカリ土類金属錯体
の付加体からなり、気相堆積法等で用いられる酸化物薄
膜形成用金属錯体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal complex for forming an oxide thin film, which is composed of an adduct of an alkaline earth metal complex and is used in a vapor deposition method or the like.
【0002】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
アルカリ土類金属のβ−ジケトン錯体について、Ino
rg−ganic Chemistry Vol.2N
o.1,P.73,1963にその合成方法及び精製
法、またAnalitical Chemistry
Vol.42No.14,P.1828,1970に熱
重量減少による気化特性等が報告されている。近年で
は、1990年春季第37回応用物理学関係連合講演会
講演番号29p−V−13,1990年秋季第51回応
用物理学会学術講演会講演番号27a−PB−12にお
いて気化特性に優れた高純度Ba(DPM)2,Sr
(DPM)2について報告されている。この化合物は会
合するために保存中に気化特性が著しく劣化する事が見
いだされた。キャリヤーガス中にテトラヒドロフランも
しくは1,4−ジオキサンを混合させ原料ガスの供給量
を安定化する試みが1989年秋季第50回応用物理学
会学術講演会講演番号30a−M−2で報告されてい
る。2. Description of the Related Art Conventionally, the problems to be solved by the invention
Regarding β-diketone complexes of alkaline earth metals, Ino
rg-ganic Chemistry Vol. 2N
o. 1, P. 73, 1963, its synthetic method and purification method, and also Analytical Chemistry.
Vol. 42 No. 14, P.I. In 1828 and 1970, vaporization characteristics and the like due to the reduction of thermogravity are reported. In recent years, in the 1990 spring 37th joint physics related lecture lecture number 29p-V-13, in the 1990 fall 51st Japan Society for Applied Physics lecture number 27a-PB-12, excellent vaporization characteristics were obtained. Purity Ba (DPM) 2 , Sr
(DPM) 2 has been reported. It has been found that the vaporization properties of the compound deteriorate significantly during storage due to association. An attempt to stabilize the supply amount of the raw material gas by mixing tetrahydrofuran or 1,4-dioxane into the carrier gas has been reported in the autumn 1989 50th Annual Meeting of the Applied Physics Conference Lecture No. 30a-M-2.
【0003】また、EUROPEAN PATENT
APPLICATION90201485.1にアルカ
リ土類金属β−ジケトン錯体と中性酸素もしくは中性窒
素供与体配位子からなる揮発性金属錯体により原料ガス
の供給量が安定化されることが報告されている。しか
し、テトラヒドロフランをキャリアーガス中に混合させ
る方法は多量のテトラヒドロフランが薄膜製造時に存在
するためにこの分解物が不純物として取り込まれ易い。
また、M(DPM)2・L2{M=Ba,Sr,Ca,
Mg:L=アルコール,環状エーテル、非環状エーテ
ル,ケトン,ジアミン,アルデヒド,ピリジン,アミ
ン,イミン,ジイミン}は、気化するのに必要な200
℃以上の温度に加熱すると付加させていた配位子Lが解
離してしまい初期の気化特性が継続できないことが解っ
た。さらにこれらの化合物は大気中で取り扱うと即座に
二酸化炭素と反応して炭酸塩に変質してしまう問題を有
していた。In addition, EUROPEAN PATEN
It has been reported in APPLICATION 902014855.1 that the supply amount of the raw material gas is stabilized by a volatile metal complex composed of an alkaline earth metal β-diketone complex and a neutral oxygen or neutral nitrogen donor ligand. However, in the method in which tetrahydrofuran is mixed in the carrier gas, a large amount of tetrahydrofuran is present during the production of the thin film, and thus this decomposition product is easily incorporated as an impurity.
In addition, M (DPM) 2 · L 2 {M = Ba, Sr, Ca,
Mg: L = alcohol, cyclic ether, acyclic ether, ketone, diamine, aldehyde, pyridine, amine, imine, diimine} is required to vaporize 200
It was found that when heated to a temperature of ℃ or more, the added ligand L is dissociated and the initial vaporization characteristics cannot be continued. Furthermore, these compounds have a problem that when they are handled in the atmosphere, they immediately react with carbon dioxide to be transformed into carbonates.
【0004】本発明者は鋭意検討を行った結果、請求項
1にしめすアルカリ土類金属錯体とオルトフェナントロ
リン誘導体の付加体またはクラウンエーテル類の付加体
から成る化合物が大気中でも安定しており酸化物薄膜形
成用の材料として有用であることを見いだし本発明を完
成するに至った。As a result of extensive studies by the present inventor, a compound consisting of an adduct of an alkaline earth metal complex and an orthophenanthroline derivative or an adduct of crown ethers as shown in claim 1 is stable even in the atmosphere and is an oxide. They have found that they are useful as a material for forming a thin film, and completed the present invention.
【0005】[0005]
【課題を解決するための手段】すなわち本発明は、一般
式 (式中Mはアルカリ土類金属であり、R1,R2,
R3,R4は同一か又は、異なる低級アルキル基および
/または芳香族基を示す)で示されるアルカリ土類金属
錯体とオルトフェナントロリン誘導体の付加体またはク
ラウンエーテル類の付加体から成ることを特徴とするも
のであり、該アルカリ土類金属がバリウム、ストロンチ
ウム、カルシウム、マグネシウムであるものは、有効で
ある。That is, the present invention has the general formula (In the formula, M is an alkaline earth metal, and R 1 , R 2 ,
R 3 and R 4 are the same or different and each represents an lower earth group and / or an aromatic group), and an orthophenanthroline derivative adduct or crown ether adduct. It is effective that the alkaline earth metal is barium, strontium, calcium or magnesium.
【0006】[0006]
【作用】以下、本発明について更に詳しく説明する。本
発明は、アルカリ土類金属錯体とオルトフェナントロリ
ン誘導体の付加体またはクラウンエーテルの付加体から
成る化合物であることを最も重要な特徴とする。このよ
うに付加体としてアルカリ土類金属錯体は、酸化物薄膜
形成用原料として優れている。従来のものに比べて大気
中での安定性に優れており、特に化学気相堆積法で使用
する場合は、200℃以上の温度に加熱しても配位子が
解離せず長期間にわたり安定した原料供給が行なえる。The present invention will be described in more detail below. The most important feature of the present invention is a compound comprising an adduct of an alkaline earth metal complex and an orthophenanthroline derivative or an adduct of a crown ether. Thus, the alkaline earth metal complex as an adduct is excellent as a raw material for forming an oxide thin film. It has better stability in the atmosphere than conventional ones, and especially when used in chemical vapor deposition, the ligand does not dissociate even when heated to a temperature of 200 ° C or higher and is stable for a long period of time. It is possible to supply the specified raw materials.
【0007】ここで、アルカリ土類金属錯体を例示すれ
ば、 ビス−2,2,6,6−テトラメチル−3,5−ヘプタ
ンジオナトバリウム[Ba(DPM)2] ビス−2,8−ジメチル−4,6−ノナンジオナトスト
ロンチウム[Sr(DIVM)2] ビス−4,6−ノナンジオナトカルシウム[Ca(DB
M)2] ビス−2,4−ペンタンジオナトマグネシウム[Mg
(acac)2] ビス−1−フェニル−1,3−ブタンジオナトストロン
チウム ビス−1−(2−フリル)−1,3−ブタンジオナトカ
ルシウム ビス−2,2−ジメチル−3,5−オクタンジオナトマ
グネシウム などが挙げられる。An example of the alkaline earth metal complex is bis-2,2,6,6-tetramethyl-3,5-heptanedionatobarium [Ba (DPM) 2 ] bis-2,8-. Dimethyl-4,6-nonandionatostrontium [Sr (DIVM) 2 ] bis-4,6-nonandionato calcium [Ca (DB
M) 2 ] Bis-2,4-pentanedionato magnesium [Mg
(Acac) 2 ] bis-1-phenyl-1,3-butanedionatostrontium bis-1- (2-furyl) -1,3-butanedionate calcium bis-2,2-dimethyl-3,5-octane Examples include dionato magnesium.
【0008】クラウンエーテル化合物を例示すれば、 1,4,7,10,13,16−ヘキサシクロオクタデ
カン [18−crown−6] 1,4,10,13−テトラオキサ−7,16−ジアザ
シクロオクタデカン[4,13−diaza−18−c
rown−6] 4,7,10,16,19,24−ヘプタオキサ−1,
13−ジアザビシクロ[11,8,8]ノナコサン
[クリプタンド[3,2,2]] 1,4,10,13−テトラチア−7,16−ジアザシ
クロオクタデカンロオクタデカン などが挙げられる。An example of a crown ether compound is 1,4,7,10,13,16-hexacyclooctadecane [18-crown-6] 1,4,10,13-tetraoxa-7,16-diazacyclo. Octadecane [4,13-diaza-18-c
row-6] 4,7,10,16,19,24-heptaoxa-1,
13-diazabicyclo [11,8,8] nonacosan
[Cryptand [3,2,2]] 1,4,10,13-tetrathia-7,16-diazacyclooctadecane rooctadecane and the like.
【0009】オルトフェナントロリン誘導体としては、 1,10−フェナントロリン[phen] 4,7−ジメチル−1,10−フェナントロリン 4,7−ジフェニル−1,10−フェナントロリン 4,7−ジフェニル−2,9−ジメチル−1,10−フ
ェナントロリン などが挙げられる。Examples of the orthophenanthroline derivative include 1,10-phenanthroline [phen] 4,7-dimethyl-1,10-phenanthroline 4,7-diphenyl-1,10-phenanthroline 4,7-diphenyl-2,9-dimethyl. -1,10-phenanthroline etc. are mentioned.
【0010】気化特性は、熱天秤による熱重量減少で見
ることができる。熱重量減少とは真空15〜20tor
r付近で窒素キャリヤー約20ml/min.、5℃/
min.の一定昇温速度により室温から500℃に昇温
した際の重量減少の値である。 The vaporization characteristics can be seen in the thermogravimetric reduction by a thermobalance. Thermal weight reduction means vacuum 15 to 20 torr
A nitrogen carrier of about 20 ml / min. 5 ° C /
min. Is the value of the weight loss when the temperature is raised from room temperature to 500 ° C. at a constant heating rate.
【0011】気化特性の安定性は,合成直後と6カ月後
(室温、大気中)の熱重量減少を比較することにより見
ることができる。The stability of the vaporization properties can be seen by comparing the thermogravimetric reduction immediately after synthesis and after 6 months (room temperature, in air).
【0012】図1(a)にBa(DPM)2の合成直
後、図1(b)に6カ月後の熱重量減少を示す。FIG. 1 (a) shows the thermogravimetric reduction immediately after the synthesis of Ba (DPM) 2 , and FIG. 1 (b) shows the thermogravimetric reduction after 6 months.
【0013】図2(a)に[Ba(CF3C(O)CH
C(O)CF3)2(CH3OC2H4OCH3)2]
の合成直後、図2(b)に6カ月後の熱重量減少を示
す。In FIG. 2 (a), [Ba (CF 3 C (O) CH
C (O) CF 3) 2 (CH 3 OC 2 H 4 OCH 3) 2]
Immediately after the synthesis of Fig. 2 (b), the thermogravimetric reduction after 6 months is shown.
【0014】図3にBa(DPM)2にいろいろな配位
子を付加させた化合物を大気中で保存したときの熱重量
減少の経時変化をまとめたものである。FIG. 3 is a summary of changes with time in thermogravimetric reduction when compounds obtained by adding various ligands to Ba (DPM) 2 are stored in the atmosphere.
【0015】これらの結果より、本発明で示している化
合物以外は著しく気化特性が劣化していることが分か
る。From these results, it can be seen that the vaporization characteristics are remarkably deteriorated except for the compounds shown in the present invention.
【0016】本発明の酸化物薄膜形成用金属錯体を使用
して薄膜を形成する場合、液相堆積法または気相堆積法
があるが、特に気相堆積法が好ましい。本発明の酸化物
薄膜形成用金属錯体を使用して薄膜を形成する場合、加
圧下または常圧下または減圧下が好ましい。本発明の酸
化物薄膜形成用金属錯体を使用して薄膜を形成する場
合、同伴ガスはヘリウム、アルゴン、窒素などがあり、
反応ガスは、酸素、水、亜酸化窒素、オゾンなどがあ
る。When a thin film is formed using the metal complex for forming an oxide thin film of the present invention, there are a liquid phase deposition method and a vapor phase deposition method, and a vapor phase deposition method is particularly preferable. When a thin film is formed using the metal complex for forming an oxide thin film of the present invention, it is preferably under pressure or under normal pressure or under reduced pressure. When a thin film is formed using the metal complex for forming an oxide thin film of the present invention, the accompanying gas includes helium, argon, nitrogen, etc.,
The reaction gas includes oxygen, water, nitrous oxide, ozone and the like.
【0017】[0017]
【実施例】以下、本発明を詳細に説明するが、本発明は
これらの例によってなんら限定されるものではない。 製造および実施例1 [Ba(DPM)2(phen)2]の製造例 1.7gの水酸化バリウム8水和物を溶解させた水溶液
中に2.2g秤量した1,10−フェナントロリン1水
和物を溶解させたエタノール溶液を室温で滴下し、攪拌
混合した後DPM2.2gを室温で滴下し、約1時間で
反応を終了させた。次に、この反応液に水を加え晶析、
濾過して粗Ba(DPM)2(phen)29.2gを
得た。更に、この粗生成物をエタノールを用いて再結晶
精製を行い8.5gの精製Ba(DPM)2(phe
n)2を回収した。The present invention is described in detail below, but the present invention is not limited to these examples. Production and Example 1 Production Example of [Ba (DPM) 2 (phen) 2 ] 1,10-phenanthroline monohydrate weighed 2.2 g in an aqueous solution in which 1.7 g of barium hydroxide octahydrate was dissolved. The ethanol solution in which the substances were dissolved was added dropwise at room temperature, and the mixture was stirred and mixed, and then 2.2 g of DPM was added dropwise at room temperature to complete the reaction in about 1 hour. Next, water was added to this reaction solution for crystallization,
Filtration yielded 9.2 g of crude Ba (DPM) 2 (phen) 2 . Further, the crude product was recrystallized and purified using ethanol to obtain 8.5 g of purified Ba (DPM) 2 (phe.
n) 2 was recovered.
【0018】図4(a),(b)に合成直後と6カ月間
大気中室温でサンプル瓶中に保存していた[Ba(DP
M)2(phen)2]の熱重量減少値を示す。また図
1(a),(b)に合成直後と6カ月間大気中室温でサ
ンプル瓶中に保存していたBa(DPM)2の熱重量減
少値を示す。[Ba(DPM)2(phen)2]が、
99.8wt%から94.3wt%の変化に対し、Ba
(DPM)2は91.6wt%から約45.3wt%に
変化している。4 (a) and 4 (b), the samples were stored in sample bottles at room temperature in the atmosphere immediately after synthesis and for 6 months [Ba (DP
M) 2 (phen) 2 ]. Further, FIGS. 1 (a) and 1 (b) show thermogravimetric reduction values of Ba (DPM) 2 stored in sample bottles at room temperature in the air immediately after synthesis and for 6 months. [Ba (DPM) 2 (phen) 2 ]
For the change from 99.8 wt% to 94.3 wt%, Ba
(DPM) 2 has changed from 91.6 wt% to about 45.3 wt%.
【0019】製造および実施例2 [Ba(DPM)2(18−crown−6)]の製造
例 15gの水酸化バリウム8水和物を溶解させた水溶液と
13gの18−クラウン−6−エーテルを溶解させたメ
タノール溶液を室温で6時間攪拌混合した後、DPM2
0gを室温で滴下し約3時間で反応を終了させた。次
に、この反応溶液からメタノールを減圧除去し晶析した
後、濾過して粗Ba(DPM)2(18−crown−
6)229gを得た。更に、この粗生成物をメタノール
を用いて再結晶精製を行い20gの精製Ba(DPM)
2(18−crown−6)2を回収した。[Ba(D
PM)2(18−crown−6)2]は、合成直後の
熱重量減少値が97.5wt%に対して、6カ月間、大
気中でサンプル瓶中に保存していたものは熱重量減少値
が90.5wt%であった。Production and Example 2 Production Example of [Ba (DPM) 2 (18-crown-6)] An aqueous solution in which 15 g of barium hydroxide octahydrate was dissolved and 13 g of 18-crown-6-ether were prepared. After stirring and mixing the dissolved methanol solution at room temperature for 6 hours, DPM2
0 g was added dropwise at room temperature to complete the reaction in about 3 hours. Next, methanol was removed from this reaction solution under reduced pressure and crystallization was performed, followed by filtration to obtain crude Ba (DPM) 2 (18-crown-
6) 2 29 g was obtained. Further, this crude product was purified by recrystallization using methanol to obtain 20 g of purified Ba (DPM).
2 (18-crown-6) 2 was recovered. [Ba (D
PM) 2 (18-crown-6) 2 ] has a thermogravimetric reduction value of 97.5 wt% immediately after the synthesis, whereas the thermogravimetric reduction of 6 months stored in a sample bottle in the atmosphere for 6 months. The value was 90.5 wt%.
【0020】製造および実施例3 [Sr(DBM)2(クリプタンド[3,2,2])] 2gの水酸化ストロンチウム8水和物を溶解させた水溶
液と4.2gのクリプタンド[3,2,2]を溶解させ
たメタノール溶液を45℃で6時間攪拌混合した後、D
BM2.9gを室温で滴下し約3時間で反応を終了させ
た。次に、この反応溶液からメタノールを減圧除去し晶
析した後、濾過して粗Sr(DBM)2(クリプタンド
[3,2,2])5.3gを得た。更に、この粗生成物
をメタノールを用いて再結晶精製を行い3.4gの精製
Sr(DBM)2(クリプタンド[3,2,2])を回
収した。[Sr(DBM)2(クリプタンド[3,2,
2])は、熱重量減少値が79.5wt%に対して、6
カ月間、大気中でサンプル瓶中に保存していたものは熱
重量減少値が74.1wt%であった。Preparation and Example 3 [Sr (DBM) 2 (Cryptand [3,2,2])] An aqueous solution containing 2 g of strontium hydroxide octahydrate dissolved therein and 4.2 g of cryptand [3,2,2]. After stirring and mixing the methanol solution in which [2] was dissolved at 45 ° C. for 6 hours, D
2.9 g of BM was added dropwise at room temperature to complete the reaction in about 3 hours. Next, methanol was removed from this reaction solution under reduced pressure for crystallization, followed by filtration to obtain 5.3 g of crude Sr (DBM) 2 (cryptand [3,2,2]). Further, this crude product was recrystallized and purified using methanol to collect 3.4 g of purified Sr (DBM) 2 (cryptand [3,2,2]). [Sr (DBM) 2 (cryptand [3,2
2]) has a thermogravimetric reduction value of 79.5 wt.
The value stored in the sample bottle in the air for a month had a thermogravimetric reduction value of 74.1 wt%.
【0021】製造および実施例4 [Sr(DPM)2(4,13−diaza−18−c
rown−6)] 2.1gの水酸化バリウム8水和物を溶解させた水溶液
と2.4gの4,13−diaza−18−crown
−6−etherを溶解させたメタノール溶液を室温で
約4時間攪拌混合した後、DPM3.8gを室温で滴下
し約3時間で反応を終了させた。次に、この反応溶液か
らメタノールを減圧除去し晶析した後、濾過して粗Sr
(DPM)2(4,13−diaza−18−crow
n−6)4.1gを得た。更に、この粗生成物をメタノ
ールを用いて再結晶精製を行い2.7gの精製Sr(D
PM)2(4,13−diaza−18−crown−
6)を回収した。[Sr(DPM)2(4,13−di
aza−18−crown−6)]は、熱重量減少値が
94.8wt%に対して、6カ月間、大気中でサンプル
瓶中に保存していたものは熱重量減少値が90.6wt
%であった。Production and Example 4 [Sr (DPM) 2 (4,13-diaza-18-c
row-6)] 2.1 g of an aqueous solution of barium hydroxide octahydrate dissolved therein and 2.4 g of 4,13-diaza-18-row.
A methanol solution in which -6-ether was dissolved was stirred and mixed at room temperature for about 4 hours, 3.8 g of DPM was added dropwise at room temperature, and the reaction was completed in about 3 hours. Next, methanol was removed from this reaction solution under reduced pressure for crystallization, followed by filtration to obtain crude Sr.
(DPM) 2 (4,13-diaza-18-crow)
n-6) 4.1g was obtained. Further, the crude product was purified by recrystallization using methanol to obtain 2.7 g of purified Sr (D
PM) 2 (4,13-diaza-18-crown-
6) was recovered. [Sr (DPM) 2 (4,13-di
aza-18-crown-6)] had a thermogravimetric reduction value of 94.8 wt%, whereas the thermogravimetric reduction value of 90.6 wt% was stored in the sample bottle in the atmosphere for 6 months.
%Met.
【0022】製造および実施例5 [Ca(DPM)2(phen)2]の製造例 30gの水酸化ナトリウムを溶解させた水溶液中にDP
M163gのメタノール溶液を室温で滴下し約1時間攪
拌後41.6gの塩化カルシウムを投入し約1時間攪拌
する。この反応溶液中に150gの1,10−フェナン
トロリンを氷冷下で滴下攪拌し室温に戻した後、約2時
間で反応を終了させた。次にこの反応溶液からメタノー
ルを減圧除去し晶析した後、濾過して粗Ca(DPM)
2(phen)2370gを得た。更に、この粗生成物
をメタノールょ用いて再結晶精製を行い340gの精製
Ca(DPM)2(phen)2を回収した。[Ca
(DPM)2(phen)2]は、CO2との接触前の
熱重量減少値が99.99wt%に対してCO2との接
触後の熱重量減少値が96.73wt%であった。Production and Example 5 Production Example of [Ca (DPM) 2 (phen) 2 ] DP in an aqueous solution in which 30 g of sodium hydroxide was dissolved.
M163 g of a methanol solution is added dropwise at room temperature and stirred for about 1 hour, 41.6 g of calcium chloride is added, and the mixture is stirred for about 1 hour. To this reaction solution, 150 g of 1,10-phenanthroline was added dropwise under ice-cooling and stirring, and after returning to room temperature, the reaction was completed in about 2 hours. Next, methanol was removed from this reaction solution under reduced pressure and crystallization was performed, followed by filtration to obtain crude Ca (DPM).
370 g of 2 (phen) 2 was obtained. Further, the crude product was purified by recrystallization using methanol to recover 340 g of purified Ca (DPM) 2 (phen) 2 . [Ca
(DPM) 2 (phen) 2 ] , the thermal weight loss value before contact with the CO 2 heat weight loss value after contact with the CO 2 relative to 99.99 wt% was 96.73wt%.
【0023】実験例1 有機金属化学気相堆積法(以下MOCVD法という)の
装置を用い、MgO基板を反応室で800℃に加熱して
アルゴンをキャリアーガスとしてBa(DPM)2・
(phen)2を気化させて導入した。さらにこの反応
室に同時に酸素を導入することで良好なBaO薄膜を形
成することが出来た。成膜速度は1〜10μm/hであ
った。Experimental Example 1 Using a metal organic chemical vapor deposition (hereinafter referred to as MOCVD) apparatus, a MgO substrate was heated to 800 ° C. in a reaction chamber and argon was used as a carrier gas for Ba (DPM) 2.
(Phen) 2 was vaporized and introduced. Furthermore, by introducing oxygen into this reaction chamber at the same time, a good BaO thin film could be formed. The film forming rate was 1 to 10 μm / h.
【0024】 Ba(DPM)2(Phen)2容器温度;200〜220℃ キャリアーガス流量 ;150sccm 酸素ガス流量 ;200sccm *sccmとはStandard Cublc Cen
timeter perMinuieの略で0℃、1気
圧における1分間に流れるガスの容積(cm2)であ
る。Ba (DPM) 2 (Phen) 2 container temperature; 200 to 220 ° C. Carrier gas flow rate; 150 sccm Oxygen gas flow rate; 200 sccm * sccm is Standard Cublc Cen
It is an abbreviation for time per Minute and is a volume (cm 2 ) of gas flowing at 0 ° C. and 1 atmospheric pressure for 1 minute.
【0025】実験例2 MOCVD法用の装置を用い、MgO基板を750℃に
加熱してアルゴンをキャリアーガスとしてBa(DP
M)2 (18−crown−6)を気化させて導入し
た。ここで同時に酸素を導入することで良好なBaO薄
膜を形成することが出来た。成膜速度は1〜10μm/
hであった。Experimental Example 2 Using an apparatus for MOCVD, the MgO substrate was heated to 750 ° C. and argon (Ba) was used as a carrier gas.
M) 2 (18-crown-6) was vaporized and introduced. Here, by introducing oxygen at the same time, a good BaO thin film could be formed. Deposition rate is 1-10 μm /
It was h.
【0026】 Ba(DPM)2−(18−crown−6)容器温度;210〜230℃ キャリアーガス流量 ;150sccmBa (DPM) 2− (18-rown-6) container temperature; 210 to 230 ° C. Carrier gas flow rate; 150 sccm
【0027】実験例3 MOCVD法用の装置を用い、SrTiO3基板を反応
室で750℃に加熱してアルゴンガスをキャリアーガス
としてSr(DBM)2(クリプタンド[3,2,
2])を気化させて導入した。ここで同時に酸素を導入
することで良好なSrO薄膜を形成することができた。
成膜速度は3〜15μm/hであった。Experimental Example 3 Using an apparatus for MOCVD method, a SrTiO 3 substrate was heated to 750 ° C. in a reaction chamber and argon gas was used as a carrier gas for Sr (DBM) 2 (cryptand [3, 2,
2]) was vaporized and introduced. Here, by introducing oxygen at the same time, a good SrO thin film could be formed.
The film forming rate was 3 to 15 μm / h.
【0028】 Sr(DBM)2(クリプタンド[3,2,2])容器温度;180〜200℃ キャリアーガス流量 ;150sccm 酸素流量 ;200sccmSr (DBM) 2 (cryptand [3,2,2]) container temperature; 180 to 200 ° C. carrier gas flow rate; 150 sccm oxygen flow rate; 200 sccm
【0029】実験例4 MOCVD法用の装置を用い、SrTiO3基板を反応
室で800℃に加熱してアルゴンガスをキャリアーガス
としてSr(DPM)2(4.13−dizzz−18
−crown−6)を気化させて導入した。ここで同時
に水蒸気を導入することで良好なSrO薄膜を形成する
ことができた。成膜速度は5〜20μm/hであった。Experimental Example 4 Using an apparatus for MOCVD method, a SrTiO 3 substrate was heated to 800 ° C. in a reaction chamber and argon gas was used as a carrier gas for Sr (DPM) 2 (4.13-dizz-18).
-Crown-6) was vaporized and introduced. A good SrO thin film could be formed by simultaneously introducing water vapor here. The film forming rate was 5 to 20 μm / h.
【0030】 Sr(DPM)2(4,13−dizzz−18−crown−6)容器温度; 180〜200℃ キャリアーガス流量 ;200sccm 水蒸気流量 ;150sccmSr (DPM) 2 (4,13-dizz-18-18-rown-6) container temperature; 180 to 200 ° C. carrier gas flow rate; 200 sccm water vapor flow rate; 150 sccm
【0031】実験例 5 MOCVD法用の装置を用い、MgO基板を反応室で7
00℃に加熱してアルゴンガスをキャリアーガスとして
Ca(DPM)2(phen)2を気化させて導入し
た。ここで同時に酸素を導入するこで良好なCaO薄膜
を形成することができた。成膜速度は5〜15μm/h
であった。Experimental Example 5 An apparatus for MOCVD method was used, and an MgO substrate was used in a reaction chamber.
Ca (DPM) 2 (phen) 2 was vaporized and introduced by heating to 00 ° C. and using argon gas as a carrier gas. By introducing oxygen at the same time, a good CaO thin film could be formed. Deposition rate is 5 to 15 μm / h
Met.
【0032】 Ca(DPM)2(phen)2容器温度;180〜201℃ キャリアーガス流量 ;150sccm 酸素流量 ;200sccmCa (DPM) 2 (phen) 2 container temperature; 180 to 201 ° C. Carrier gas flow rate; 150 sccm Oxygen flow rate; 200 sccm
【0033】[0033]
【発明の効果】本発明のアルカリ土類金属錯体を用いる
ことにより、大気中での取り扱いが可能となった。ま
た、化学気相堆積法において安定かつ再現性の高い薄膜
形成が可能となり、産業上極めて有利である。EFFECT OF THE INVENTION By using the alkaline earth metal complex of the present invention, handling in the atmosphere becomes possible. Further, the chemical vapor deposition method enables the formation of a stable and highly reproducible thin film, which is extremely advantageous in industry.
【図1】(a)は、従来のBa(DPM)2の合成直後
の熱重量減少(%)を示し、(b)は、6カ月間大気中
に室温でサンプル管中に保存していた同化合物の熱重量
減少(%)を示す線図である。FIG. 1 (a) shows the thermogravimetric reduction (%) immediately after synthesis of conventional Ba (DPM) 2 , and FIG. 1 (b) was stored in a sample tube in the atmosphere at room temperature for 6 months. It is a diagram which shows the thermogravimetric reduction (%) of the same compound.
【図2】(a)は、EUROPIAN PATENT
APPLICATION90201485.1に記載さ
れている[Ba(CF3C(O)CHC(O)CF3)
2(CH3OC2H4OCH3)2の合成直後の熱重量
減少(%)を示し、(b)は、6カ月間大気中に室温で
サンプル管中に保存していた同化合物の熱重量減少
(%)を示す線図である。[FIG. 2] (a) shows EUROPIAN PATEN
APPLICATION 902014855.1 [Ba (CF 3 C (O) CHC (O) CF 3 ).
2 shows the thermogravimetric reduction (%) immediately after the synthesis of 2 (CH 3 OC 2 H 4 OCH 3 ) 2 , and (b) shows the heat of the same compound stored in a sample tube in the air at room temperature for 6 months. It is a diagram which shows weight reduction (%).
【図3】Ba(DPM)2にいろいろな配位子を付加さ
せた化合物を大気中で保存したときの熱重量減少の経時
変化をまとめた線図である。FIG. 3 is a diagram summarizing temporal changes in thermogravimetric reduction when compounds obtained by adding various ligands to Ba (DPM) 2 are stored in the atmosphere.
【図4】(a)は、本発明の製造例1における[Ba
(DPM)2(phen)2]の合成直後の熱重量減少
(%)を示し、(b)は、6カ月間大気中に室温でサン
プル管中に保存していた同化合物の熱重量減少(%)を
示す線図である。FIG. 4A shows [Ba in Production Example 1 of the present invention.
(DPM) 2 (phen) 2 ] shows the thermogravimetric reduction (%) immediately after the synthesis, and (b) shows the thermogravimetric reduction of the same compound stored in a sample tube at room temperature in the atmosphere for 6 months ( FIG.
Claims (2)
R3,R4は同一か又は異なる低級アルキル基および/
または芳香族基を示す)で示されるアルカリ土類金属錯
体とオルトフェナントロリン誘導体の付加体またはクラ
ウンエーテル類の付加体から成ることを特徴とするアル
カリ土類金属の酸化物薄膜形成用金属錯体。1. A general formula (In the formula, M is an alkaline earth metal, and R 1 , R 2 ,
R 3 and R 4 are the same or different lower alkyl groups and / or
Or an alkaline earth metal complex represented by an aromatic group) and an adduct of an orthophenanthroline derivative or an adduct of crown ethers, the metal complex for forming an oxide thin film of an alkaline earth metal.
チウム、カルシウム、マグネシウムである請求項1の酸
化物薄膜形成用金属錯体。2. The metal complex for forming an oxide thin film according to claim 1, wherein the alkaline earth metal is barium, strontium, calcium or magnesium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32496991A JPH08974B2 (en) | 1991-10-08 | 1991-10-08 | Alkaline earth metal complexes stable in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32496991A JPH08974B2 (en) | 1991-10-08 | 1991-10-08 | Alkaline earth metal complexes stable in air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0598444A JPH0598444A (en) | 1993-04-20 |
| JPH08974B2 true JPH08974B2 (en) | 1996-01-10 |
Family
ID=18171653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32496991A Expired - Fee Related JPH08974B2 (en) | 1991-10-08 | 1991-10-08 | Alkaline earth metal complexes stable in air |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08974B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6117487A (en) * | 1998-04-02 | 2000-09-12 | Asahi Denka Kogyo Kabushiki Kaisha | Process for forming metal oxide film by means of CVD system |
| CN115838186B (en) * | 2022-10-26 | 2024-05-28 | 东部超导科技(苏州)有限公司 | Strontium doped barium source, preparation method thereof and application thereof in preparing high-temperature superconducting strip |
-
1991
- 1991-10-08 JP JP32496991A patent/JPH08974B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0598444A (en) | 1993-04-20 |
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