JP2005171243A - キノキサリン環を主鎖に有する有機薄膜トランジスタ用有機半導体高分子 - Google Patents
キノキサリン環を主鎖に有する有機薄膜トランジスタ用有機半導体高分子 Download PDFInfo
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- JP2005171243A JP2005171243A JP2004346312A JP2004346312A JP2005171243A JP 2005171243 A JP2005171243 A JP 2005171243A JP 2004346312 A JP2004346312 A JP 2004346312A JP 2004346312 A JP2004346312 A JP 2004346312A JP 2005171243 A JP2005171243 A JP 2005171243A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
- C08G61/10—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aromatic carbon atoms, e.g. polyphenylenes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
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- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/124—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one nitrogen atom in the ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/125—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one oxygen atom in the ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
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- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/126—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one sulfur atom in the ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0683—Polycondensates containing six-membered rings, condensed with other rings, with nitrogen atoms as the only ring hetero atoms
- C08G73/0694—Polycondensates containing six-membered rings, condensed with other rings, with nitrogen atoms as the only ring hetero atoms with only two nitrogen atoms in the ring, e.g. polyquinoxalines
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
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- H—ELECTRICITY
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Abstract
【解決手段】p型半導体特性を有するポリチオフェンに、電子親和力の大きい、すなわちn型半導体特性を持つキノキサリン環を導入したp型とn型の電気的特性を同時に示すポリチエニルキノキサリン誘導を使用し、且つ、基板、ゲート電極、ゲート絶縁層、有機活性層、及びソース/ドレイン電極を含んでなる有機薄膜トランジスタを提供する。
【選択図】図4
Description
以下に示す製造例1で製造されたチオフェン単量体、製造例3で製造されたキノキサリン単量体、及び製造例4で製造された重合触媒を用いて製造例5に示すポリチエニルキノキサリンを製造した。
窒素雰囲気の下で−50℃に冷却したジブロモチオフェン3.0g(12.4mmol)のテトラヒドロフラン(50mL)溶液に、n−ブチルリチウム(n−BuLi、1.63M(モル/リットル)のヘキサン溶液)溶液18.4mL(30mmol)を仕込んで30分間反応させた後、トリメチルスタニルクロライド(以下、SnMe3Cl、25mmol)5gを仕込んで−50℃で4〜5時間程度反応させた。
1H-NMR(300 MHz、CDCl3) ( (ppm)0.38 (CH3、18H)、7.38 (2H, Thiophene-H)。
ジブロモチオフェンの代わりにジブロモビチオフェンを用いた以外は、前記製造例1と同一の方法で行って、2,5−ビス(トリメチルスタニル)ビチオフェンを製造した(収率:68%)。
1H-NMR(300 MHz、CDCl3) ( (ppm)0.38(CH3、18H)、7.08 (d、2H、Thiophene-H)、7.27 (d、2H、Thiophene-H)。
(1)5、8−ジブロモキノキサリン誘導体(a)の合成
3、6−ジブロモ−o−フェニレンジアミン4.0g(15.0mmol)と、4、4´−ジメトキシベンジル4.88g(18.0mmol)とを溶かしたブタノール溶液60mLに氷酢酸を2〜3滴落とした後、120°Cで5時間攪拌した。反応後、0°Cまで冷やした反応溶液を濾過して、分離した固体を熱エタノールで2回洗浄した後、乾燥して目的物を得た。(9.6mmol、収率:64%)。
1H-NMR (300MHz、CDCl3) ( (ppm)3.85(s、6H、Phenyl-O-CH3)、6.89(d、4H、 Phenyl-H)、7.66(d、4H、Phenyl-H)、7.85(d、2H、Quinoxaline-H)。
ナスフラスコに前記で得られた5,8−ジブロモキノキサリン誘導体(a)4.55g(9.1mmol)と約30当量のピリジンヒドロクロライド(Py−HCl、40g)を仕込んで200°Cで8時間攪拌した後、室温まで冷却した。反応混合物に塩酸水溶液(2.5%)80mLを入れてよく攪拌した後、エーテルを加えた。有機層を希塩酸水溶液、水酸化ナトリウム水溶液及び塩酸水溶液の順で処理した後、さらにエーテルを加えた。有機層を水で洗浄し、乾燥剤で乾燥させることにより黄色粉末の5,8−ジブロモキノキサリン誘導体(b)(8.7mmol、収率:96%)を得て、次の反応に直ちに使用した。
製造例3の(2)で得た5,8−ジブロモキノキサリン誘導体(b)6.0g(12.7mmol)と水酸化カリウム水溶液(KOH、0.5M、32mmol)を、エタノールに加えて室温で1時間攪拌した後、ブロモヘキサン5.25g(32mmol)を添加した。70°Cで24時間反応させた後、反応混合物を−20°Cまで降温してから濾過した。カラムクロマトグラフィ(展開溶媒:クロロホルム、充填剤:シリカゲルSiO2)によって精製して黄色の固体を得た(2.2mmol、収率:51%)。得られた5.8−ジブロモキノキサリン誘導体 (c)の1H−NMRを図1に示す。
1H-NMR (300 MHz、CDCl3) ( (ppm) 0.92 (6H, CH3)、1.32〜1.50(m、2nH、-(CH2)n-)、 1.80 (m、4H、-CH2-)、 3.99 (t、4H、Phenyl-O-CH2-)、6.87 (d、4H、Phenyl-H)、7.64 (d、4H、Phenyl-H)、7.85 (d、2H、Quinoxaline-H)。
1H-NMR (300MHz、CDCl3) ( (ppm) 0.34(9H、CH3)、0.88 (3H、CH3)、 1.31 (broad、 2nH、-(CH2)n-)、1.56 (m、2H、-CH2-)、2.55 (t、2H、Thiophene-CH2-)、6.84 (s、 Thiophene-H)。
窒素雰囲気で反応器に、製造例1で製造されたチオフェン単量体0.5g(1.22mmol)、製造例3の(3)で製造されたキノキサリン単量体0.78g(1.22mmol)を仕込み、弱く加熱しながら無水DMFに完全に溶解させた後、製造例4で製造された2−ブロモ−3−ヘキシル−5−トリメチルスタニルチオフェン1.5g(3.66mmol)と、重合触媒としてパラジウム(0)化合物のPd(PPh3)4を単量体の合計量に対して7.0モル%の割合で仕込んだ後、85°Cで72時間反応させた。
1H-NMR (300 MHz、CDCl3) ( (ppm) 0.92 (CH3)、1.35〜1.44 (CH2)、1.72 (CH2)、2.81 (Thiophene-CH2)、3.76〜4.0 (-O-CH2)、6.74 (Phenyl-H)、6.98 (Thiophene-H)、7.61〜7.80(Thiophene-H and Phenyl-H)、8.04 (Qunioxaline-H)。
製造例5で2−ブロモ−3−ヘキシル−5−トリメチルスタニルチオフェン(製造例4)を添加しない以外は、前記製造例5と同様に行って、前記化学式(1)の構造をもたないポリチエニルキノキサリン誘導体(PTQx)を製造した。
製造例5で得られたPTQx−Tを用いて有機薄膜トランジスタを製造した。まず、洗浄したシリコン基板にCVD法によりシリコン酸化膜を3000Åの厚さに蒸着した。その後、真空蒸着法により厚さ2000ÅのAlのゲート電極を形成した。その上に、ポリビニルフェノール類の化合物をNMPに10質量%溶かした溶液を用いて、スピンコート法によって1000rpmで7000Åの厚さに塗布した後、窒素雰囲気下、100°Cで1時間ベーキングして有機ゲート絶縁膜を形成した。
比較例1で得られたPTQxを用いて、実施例2と同一の製造方法により、図4に示すトップコンタクト(top contact)方式と同一タイプの有機薄膜トランジスタを製造した。
2 ゲート電極
3 ゲート絶縁層
4 ソース電極
5 ドレイン電極
6 有機活性層
Claims (11)
- 下記化学式(1)
R2及びR3はそれぞれ独立に水素原子、ヒドロキシル基、炭素原子数1〜16の直鎖状、分枝鎖状もしくは環式のアルキル基、炭素原子数1〜12の直鎖状、分枝鎖状もしくは環式のアルコキシ基、又は炭素原子数6〜18のアリール基(前記アリール基は、芳香族環又はヘテロ芳香族環を含み、前記アリール基はヒドロキシル基、炭素原子数1〜16の直鎖状、分枝鎖状及び環式のアルキル基、並びに炭素原子数1〜12の直鎖状、分枝鎖状及び環式のアルコキシ基からなる群から選択された少なくとも1種の置換基で置換されてもよい)で、
AはNH、O又はSであり、
nは1又は2であり、そして、
aとbはそれぞれ0.01≦a/(a+b)≦0.99、0.01≦b/(a+b)≦0.99を満足させる実数である。]で表されることを特徴とするポリチエニルキノキサリン誘導体。 - 下記化学式(2)
AはNH、O又はSであり、
nは1又は2であり、そして
Rは炭素原子数1〜6のアルキル基を示す。)で表される単量体と、
下記化学式(3)
Xはハロゲン原子を示す。]で表される単量体と、及び
下記化学式(4)
Rは炭素原子数1〜6のアルキル基を示し、
Xはハロゲン原子を示す。)で表される単量体とを、
下記化学式(5a)
下記化学式(5b)
- 前記化学式(2)で表わされる単量体及び、化学式(3)で表わされる単量体は、等モル量で使用され、これらそれぞれのモル数に対する化学式(4)で表わされる単量体の使用モル数は0.01:0.99〜0.99:0.01であることを特徴とする請求項2記載のポリチエニルキノキサリン誘導体の製造方法。
- 前記化学式3で表わされる単量体が、下記化学式(6a)
下記化学式(6b)
下記化学式(6c)
- 使用する触媒がテトラキストリフェニルホスフィンパラジウム(0)であることを特徴とする請求項2記載のポリチエニルキノキサリン誘導体の製造方法。
- 製造するポリチエニルキノキサリン誘導体の数平均分子量が40000〜80000の範囲であることを特徴とする請求項2記載のポリチエニルキノキサリン誘導体の製造方法。
- 基板上にゲート電極、ゲート絶縁層、有機活性層及びソース/ドレイン電極を含んでなる有機薄膜トランジスタにおいて、前記有機活性層が請求項1記載のポリチエニルキノキサリン誘導体からなることを特徴とする有機薄膜トランジスタ。
- 前記有機活性層がスクリーン印刷法、プリント法、スピンコーティング法、ディッピング法またはインクジェット法によって薄膜に形成されることを特徴とする請求項7記載の有機薄膜トランジスタ。
- 前記絶縁層が、Ba0.33Sr0.66TiO3、Al2O3、Ta2O5、La2O5、Y2O3及びTiO2よりなる群から選択された強誘電性絶縁体、PbZr0,33Ti0.66O3(PZT)、Bi4Ti3O12、BaMgF4、SrBi2(TaNb)2O9、Ba(ZrTi)O3、BaTiO3、SrTiO3、Bi4Ti3O12、SiO2、SiNx及びAlONよりなる群から選択された無機絶縁体、及びポリイミド、BCB(ベンゾシクロブテン)、パリレン、ポリアクリレート、ポリビニールアルコール、及びポリビニールフェノールよりなる群から選択された有機絶縁体で形成されることを特徴とする請求項7記載の有機薄膜トランジスタ。
- 前記基板が、ガラス、ポリエチレンナフタレート(PEN)、ポリエチレンテレフタレート(PET)、ポリカーボネート、ポリビニールアルコール、ポリアクリレート、ポリイミド、ポリノルボルネン、及びポリエテールスルホン(PES)よりなる群から選択された材料で形成されることを特徴とする請求項7記載の有機薄膜トランジスタ。
- 前記ゲート電極、及びソース・ドレイン電極が、金、銀、アルミニウム、ニッケル、及びインジウム錫酸化物よりなる群から選択された材料で形成されることを特徴とする請求項7記載の有機薄膜トランジスタ。
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US6855951B2 (en) * | 2003-03-19 | 2005-02-15 | Xerox Corporation | Fluorinated polythiophenes and devices thereof |
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- 2004-11-23 DE DE602004005807T patent/DE602004005807T2/de active Active
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JP2006037098A (ja) * | 2004-07-08 | 2006-02-09 | Samsung Electronics Co Ltd | ポリ(オリゴチオフェン−アリーレン)誘導体、有機半導体共重合体、半導体多層構造、およびポリ(オリゴチオフェン−アリーレン)誘導体の製造方法 |
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WO2012050102A1 (ja) * | 2010-10-13 | 2012-04-19 | 住友化学株式会社 | 高分子化合物、有機半導体材料及び有機トランジスタ |
JP2012140624A (ja) * | 2011-01-04 | 2012-07-26 | Samsung Electronics Co Ltd | 有機半導体化合物および、これを含むトランジスタと電子素子 |
US9379329B2 (en) | 2011-01-04 | 2016-06-28 | Samsung Electronics Co., Ltd. | Low band-gap organic semiconductor compounds, and transistors and electronic devices including the same |
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JPWO2013005564A1 (ja) * | 2011-07-07 | 2015-02-23 | コニカミノルタ株式会社 | 共役系高分子およびこれを用いた有機光電変換素子 |
WO2013005564A1 (ja) * | 2011-07-07 | 2013-01-10 | コニカミノルタホールディングス株式会社 | 共役系高分子およびこれを用いた有機光電変換素子 |
Also Published As
Publication number | Publication date |
---|---|
US20050121668A1 (en) | 2005-06-09 |
US7030409B2 (en) | 2006-04-18 |
KR20050055443A (ko) | 2005-06-13 |
KR101007787B1 (ko) | 2011-01-14 |
DE602004005807D1 (de) | 2007-05-24 |
EP1542294A1 (en) | 2005-06-15 |
JP4336296B2 (ja) | 2009-09-30 |
DE602004005807T2 (de) | 2008-01-10 |
CN1663981A (zh) | 2005-09-07 |
CN100406497C (zh) | 2008-07-30 |
EP1542294B1 (en) | 2007-04-11 |
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