JP5085805B2 - カルバゾール含有伝導性高分子およびこれを用いた有機光起電力装置 - Google Patents
カルバゾール含有伝導性高分子およびこれを用いた有機光起電力装置 Download PDFInfo
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- JP5085805B2 JP5085805B2 JP2012501945A JP2012501945A JP5085805B2 JP 5085805 B2 JP5085805 B2 JP 5085805B2 JP 2012501945 A JP2012501945 A JP 2012501945A JP 2012501945 A JP2012501945 A JP 2012501945A JP 5085805 B2 JP5085805 B2 JP 5085805B2
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- photoelectric conversion
- carbazole
- photovoltaic device
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- organic photovoltaic
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- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 title claims description 55
- 238000013086 organic photovoltaic Methods 0.000 title claims description 43
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- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical class C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 16
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- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 14
- 125000003184 C60 fullerene group Chemical class 0.000 claims description 10
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 10
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 claims description 9
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- NBJGUMLGJPJNLO-UHFFFAOYSA-N 2,7-dibromo-9-dodecylcarbazole Chemical compound C1=C(Br)C=C2N(CCCCCCCCCCCC)C3=CC(Br)=CC=C3C2=C1 NBJGUMLGJPJNLO-UHFFFAOYSA-N 0.000 description 9
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- WLPUWLXVBWGYMZ-UHFFFAOYSA-N tricyclohexylphosphine Chemical compound C1CCCCC1P(C1CCCCC1)C1CCCCC1 WLPUWLXVBWGYMZ-UHFFFAOYSA-N 0.000 description 5
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- 239000005964 Acibenzolar-S-methyl Substances 0.000 description 2
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
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- SYUVAXDZVWPKSI-UHFFFAOYSA-N tributyl(phenyl)stannane Chemical compound CCCC[Sn](CCCC)(CCCC)C1=CC=CC=C1 SYUVAXDZVWPKSI-UHFFFAOYSA-N 0.000 description 1
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Description
また、好適なアクセプター単量体は、下記の一般式11(化11)乃至一般式16(化16)で表される化合物の中から選ばれるいずれか1種を用いるものである。
本発明に係る一般式1(化1)で表される伝導性高分子において、XおよびYは、前記ドナー単量体またはアクセプター単量体の他にも、公知の様々な伝導性官能基または光吸収機能を有するいずれか1種の単量体構造であってもよい。好ましくは、XおよびYが両方とも結晶性を有するチオフェン誘導体であってもよい。さらに好ましくは、Xは、ドナー官能基を有し、且つ、Yは、アクセプター官能基を有していて、ドナー−アクセプタータイプの低いバンドギャップの高分子を構成してもよい。
反応フラスコに、2,7−ビス(4´,4´,5´,5´−テトラメチル−1´,3´,2´−ジオキサボロラン−2´−イル)−9,9−ジデシルフルオレン0.300g(0.429mmol)、4,7−ジ−2´−(5´−ブロモ)−チエニル−2,1,3−ベンゾチアジアゾール0.187g(0.409mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.0106g(0.0215mmol)を入れ、1時間真空引きした後、トルエン7mlを入れた後、30分間攪拌した。エタノール1.5mlと20重量%のEt4NOH1.5mlを入れた後、窒素でバブリングして、溶媒中に溶けている溶存酸素を除去した。
反応フラスコに、2,7−ビス(4´,4´,5´,5´−テトラメチル−1´,3´,2´−ジオキサボロラン−2´−イル)−9,9−ジデシルフルオレン0.300g(0.429mmol)、4,7−ジ−2´−(5´−ブロモ)−チエニル−2,1,3−ベンゾチアジアゾール0.177g(0.386mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.0212g(0.0429mmol)を入れて1時間真空引きした後、トルエン7mlを入れた後、30分間攪拌することを除いては、前記実施例1の方法と同様にして、高分子200mgを得た[Mw=6,796g/mol(PDI=2.0)]。
反応フラスコに、2,7−ビス(4´,4´,5´,5´−テトラメチル−1´,3´,2´−ジオキサボロラン−2´−イル)−9,9−ジデシルフルオレン0.400g(0.573mmol)、4,7−ジ−2´−(5´−ブロモ)−チエニル−2,1,3−ベンゾチアジアゾール0.210g(0.458mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.0106g(0.0215mmol)を入れて1時間真空引きした後、トルエン8mlを入れた後、30分間攪拌することを除いては、前記実施例1の方法と同様にして、高分子200mgを得た[Mw=5,125g/mol(PDI=2.0)]。
反応フラスコに、2,7−ビス(4´,4´,5´,5´−テトラメチル−1´,3´,2´−ジオキサボロラン−2´−イル)−9,9−ジデシルフルオレン0.300g(0.429mmol)、4,7−ジ−2´−(5´−ブロモ)−チエニル−2,1,3−ベンゾチアジアゾール0.197g(0.429mmol)を入れて、1時間真空引きした後、トルエン7mlを入れた後、30分間攪拌することを除いては、前記実施例1の方法と同様にして、高分子120mgを得た[Mw=5,015g/mol(PDI=1.8)]。
反応フラスコに、2,7−ビス(4´,4´,5´,5´−テトラメチル−1´,3´,2´−ジオキサボロラン−2´−イル)−9,9−ジデシルフルオレン0.3g(0.429mmol)、4,7−ジ−2´−(5´−ブロモ)−チエニル−2,1,3−ベンゾチアジアゾール0.137g(0.300mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.064g(0.129mmol)を入れて1時間真空引きした後、トルエン7mlを入れた後、30分間攪拌することを除いては、前記実施例1の方法と同様にして、高分子260mgを得た[Mw=8,521g/mol(PDI=2.4)]。
反応フラスコに、2,7−ビス(4´,4´,5´,5´−テトラメチル−1´,3´,2´−ジオキサボロラン−2´−イル)−9,9−ジデシルフルオレン0.3g(0.429mmol)、4,7−ジ−2´−(5´−ブロモ)−チエニル−2,1,3−ベンゾチアジアゾール0.118g(0.258mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.084g(0.172mmol)を入れて1時間真空引きした後、トルエン7mlを入れた後、30分間攪拌することを除いては、前記実施例1の方法と同様にして、高分子220mgを得た[Mw=12,233g/mol(PDI=2.6)]。
反応フラスコに、2,7−ビス(4´,4´,5´,5´−テトラメチル−1´,3´,2´−ジオキサボロラン−2´−イル)−9,9−ジデシルフルオレン0.3g(0.429mmol)、4,7−ジ−2´−(5´−ブロモ)−チエニル−2,1,3−ベンゾチアジアゾール0.098g(0.215mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.106g(0.215mmol)を入れて1時間真空引きした後、トルエン7mlを入れた後、30分間攪拌することを除いては、前記実施例1の方法と同様にして、高分子270mgを得た[Mw=9,342g/mol(PDI=2.4)]。
前記スズキ方法を通じて合成された実施例1〜3および比較例1〜4のカルバゾール基を含む伝導性高分子を電子供与体として用い、C70−PCBMを電子受容体として用いるが、その配合比を1:3重量比で混合して製造された光電変換層材料をクロロベンゼン溶媒に1.5%の重量比で含有されるように溶解させた後、アルゴン雰囲気下でPEDOT層が導入されたITOガラス基板にスピンコーティングして70〜120nmの厚さの光電変換層を導入し、120℃の熱板で5分間熱処理した。
下記の反応式1(化17)に示す方法に従い製造された実施例1〜3および比較例1〜4の高分子と、C70−PCBMを1:3重量比で混合して光電変換層材料を製造し、これを用いた有機光起電力装置に対して測定した電気光学的特性結果を下記表1に示す。
反応フラスコに、2,6−ビス(トリブチルスタンナニル)−4,4´−ジヘキシルジチエノシロール0.300g(0.436mmol)、4,7−ブロモ−2,1,3−ベンゾチアジアゾール0.122g(0.414mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.0107g(0.0218mmol)とトルエン2mlを入れた後、10分間窒素でバブリングして、溶媒中に溶けている溶存酸素を除去した。窒素を流しつつ、Pd(OAc)22.9mg(0.0129mmol)とトリシクロヘキシホスフィン10.8mg(0.0386mmol)を入れてさらに5分間窒素で泡立てした。窒素雰囲気下で外部油浴の温度を120℃に維持しつつ2日間還流した。
反応フラスコに、2,6−ビス(トリブチルスタンナニル)−4,4´−ジヘキシルジチエノシロール0.300g(0.436mmol)、4,7−ブロモ−2,1,3−ベンゾチアジアゾール0.102g(0.349mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.043g(0.087mmol)とトルエン1.5mlを入れた後、10分間窒素のバブリングをして、溶媒中に溶けている溶存酸素を除去した。
反応フラスコに、2,6−ビス(トリブチルスタンナニル)−4,4´−ジヘキシルジチエノシロール0.40g(0.58mmol)、4,7−ブロモ−2,1,3−ベンゾチアジアゾール0.17g(0.58mmol)とトルエン2mlを入れた後、10分間窒素でバブリングして、溶媒中に溶けている溶存酸素を除去した。
反応フラスコに、2,6−ビス(トリブチルスタンナニル)−4,4´−ジヘキシルジチエノシロール0.300g(0.436mmol)、4,7−ブロモ−2,1,3−ベンゾチアジアゾール0.064g(0.218mmol)、N−ドデシル−2,7−ジブロモカルバゾール0.107g(0.218mmol)とトルエン1.5mlを入れた後、10分間窒素でバブリングして、溶媒中に溶けている溶存酸素を除去した。
前記スチーリー方法を通じて合成された実施例5〜6および比較例5〜6のカルバゾール基を含む伝導性高分子を電子供与体として用い、C70−PCBMを電子受容体として用いるが、その配合比を1:3重量比で混合して製造された光電変換層材料をクロロベンゼン溶媒に1.5%の重量比で含有されるように溶解させた後、前記実施例4の方法と同様にして有機光起電力装置を製造した。
下記の反応式2(化18)に示す方法に従い製造された実施例5〜6および比較例5〜6の高分子とC70−PCBMを1:3重量比で混合して光電変換層材料を製造し、これを用いた有機光起電力装置に対して行った電気光学的特性結果を下記表2に示す。
110…基板
120…第1の電極
130…バッファ層
140…光電変換層
150…第2の電極
Claims (10)
- 前記式中、0<n/(l+m+n)≦0.05であることを特徴とする請求項1に記載のカルバゾール含有正孔伝達性高分子。
- 前記式中、0<n/(l+m+n)≦0.05であることを特徴とする請求項5に記載の光電変換材料。
- 前記式中、0<n/(l+m+n)≦0.05であることを特徴とする請求項7に記載の有機光起電力装置。
- 前記光電変換層が、一般式1(化1)で表される2,7−カルバゾール基含有正孔伝達性高分子の電子供与体およびC60のフラーレン誘導体またはC70のフラーレン誘導体の電子受容体が1:0.5〜1:4の重量比で配合された光電変換物質からなることを特徴とする請求項7に記載の有機光起電力装置。
- 前記光電変換物質が、クロロベンゼン、1,2−ジクロロベンゼンおよびクロロホルムよりなる群から選ばれるいずれか1種の溶媒に固形分含量1.0〜3.0の重量%で含有されるように製造されることを特徴とする請求項7に記載の有機光起電力装置。
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US20140230902A1 (en) * | 2011-11-30 | 2014-08-21 | Mingjie Zhou | Co-polymer of 2,7-fluorene and bithiazole, method for preparing same and solar battery containing same |
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