常见有机化合物作为聚合物太阳能电池的界面修饰材料
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- 英文论文题名：Common Organic Compounds as Buffer-Layer Materials for Polymer Solar Cells
- 论文作者：郭鑫 ; 傅平 ; 周玲玉 ; 李灿
- 英文论文作者：Xin Guo ; Ping Fu ; Lingyu Zhou ; Can Li ; Dalian Institute of Chemical Physics ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中科院大连化物所;
- 论文关键词：聚合物太阳能电池 ; 界面修饰材料 ; 能量转化效率 ; 有机磺酸盐 ; 酚类化合物
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十二分会：有机光伏的机遇和挑战
- 语种：中文
- 分类号：TM914.4
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十二分会 ; 有机光伏的机遇和挑战
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：142k
- 原文格式：D
- 会议级别：全国
摘要
近年来,聚合物太阳能电池的研究取得了快速进展,其能量转化效率已超过10%,稳定性也得到显著提高。~([1])在此过程中,界面修饰材料,尤其是阴极界面修饰材料和电子传输层修饰材料,如PFN和PEIE等,起到了至关重要的作用。~([2-4])然而,目前常用的高效界面修饰材料需要复杂的合成过程才能获得,或价格昂贵,不适于大范围推广应用。为此,我们发展了两类常见有机化合物作为聚合物太阳能电池中的界面修饰材料,分别应用于正式器件中修饰Al电极和反式器件中修饰ZnO电子传输层。一是芘磺酸盐小分子,其在以PTB7-Th/PC_(71)BM为活性层的正式器件中修饰Al电极,可以取得接近9%的效率,相比于无阴极修饰层和以Ca/Al为阴极的参比器件,效率明显提高。二是以廉价而常见的酚类化合物(如苯酚、萘酚等)作为反式器件中的ZnO修饰层,可以提高ZnO薄膜的电导率并减小ZnO与活性层之间的界面势垒,相对于参比器件(活性层同上),效率提高22%,达到10.5%,同时器件稳定性得到显著改善。
Interfacial engineering in particular at the cathode interface plays a crucial role in improved performances for both conventional and inverted polymer solar cells(PSCs).~([1]) Typical cathode interlayer materials(CILs) such as PFN and PEIE have been reported.~([2-4]) However, most of CILs are not easily accessible; complicated synthesis is usually needed. Herein, we describe the use of two kinds of common organic compounds as CILs. One is pyrene sulfonate that can modify Al electrode for increased PCE(conventional device, PTB7-Th/PC_(71) BM as active layer) up to 9% compared to those for devices without CIL or with Ca/AL as cathode. Another is aromatic alcohols like phenol and naphthol, which can be used as surface modifier of ZnO ETL for improved PCE reaching 10.5% and stability(inverted device, same active layer as above) due to increased conductivity of ZnO film and reduction of energy barriers at ZnO/active layer interface.
Interfacial engineering in particular at the cathode interface plays a crucial role in improved performances for both conventional and inverted polymer solar cells(PSCs).~([1]) Typical cathode interlayer materials(CILs) such as PFN and PEIE have been reported.~([2-4]) However, most of CILs are not easily accessible; complicated synthesis is usually needed. Herein, we describe the use of two kinds of common organic compounds as CILs. One is pyrene sulfonate that can modify Al electrode for increased PCE(conventional device, PTB7-Th/PC_(71) BM as active layer) up to 9% compared to those for devices without CIL or with Ca/AL as cathode. Another is aromatic alcohols like phenol and naphthol, which can be used as surface modifier of ZnO ETL for improved PCE reaching 10.5% and stability(inverted device, same active layer as above) due to increased conductivity of ZnO film and reduction of energy barriers at ZnO/active layer interface.
引文
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[2]He,Z.C.;Zhong,C.M.;Su,S.J.;Xu,M.;Wu,H.B.;Cao,Y.Nature Photon.,2012,6:591-595.
[3]Zhou,Y;Fuentes-Hernandez,C.;Shim,J.;Meyer,J.;Giordano,A.J.;Li,H.;Winget,P.;Papadopoulos,T.;Cheun,H.;Kim,J.;Fenoll,M.;Dindar,A.;Haske,W.;Najafabadi,E,;Khan,T.M.;Sojoudi,H.;Barlow,S.;Graham,S.;Brédas,J.-L.;Marder,S.R.;Kahn,A.;Kippelen,B.Science,2012,336,327-332.
[4]Lee,B.R.;Jung,E.D.;Nam,Y.S.;Jung,M.;Park,J.S.;Lee,S.;Choi,H.;J.Ko,S.;Shin,N.R.;Kim,Y.K.;Kim,S.O.;Kim,J.Y.;Shin,H.J.;Cho,S.;Song,M.H.Adv.Mater.,2014,26,494-500.