Biniek Laure, Chochos Christos L, Hadziioannou Georges, Leclerc Nicolas, Lévêque Patrick, Heiser Thomas
Laboratoire d'Ingénierie des Polymères pour les Hautes Technologies, Université de Strasbourg, Ecole Européenne de Chimie, Polymères et Matériaux, 25 rue Becquerel, 67087 Strasbourg, France.
Macromol Rapid Commun. 2010 Apr 6;31(7):651-6. doi: 10.1002/marc.200900804. Epub 2010 Feb 12.
A series of donor-acceptor alternated conjugated copolymers, composed of thiophene, bithiophene, thieno[3,2-b]thiophene, and 2,1,3-benzothiadiazole units and differing from each other by the nature and the number of 3-alkylthiophene in the backbone, have been synthesized by Stille cross-coupling polymerization. The material's optical and electrochemical properties, in solution and in thin films, have been investigated using UV-Visible absorption and cyclic voltammetry. Bulk heterojunction solar cells using blends of the newly synthesized copolymers, as electron donor, and C60-PCBM or C70-PCBM, as electron transporting material, have been elaborated. A maximum power conversion efficiency of 1.8% is achieved with a 1:4 PPBzT(2) -C12:C70-PCBM weight ratio.
通过Stille交叉偶联聚合反应合成了一系列由噻吩、联噻吩、噻吩并[3,2 - b]噻吩和2,1,3 - 苯并噻二唑单元组成的供体 - 受体交替共轭共聚物，它们在主链中3 - 烷基噻吩的性质和数量上彼此不同。使用紫外 - 可见吸收光谱和循环伏安法研究了该材料在溶液和薄膜中的光学和电化学性质。制备了本体异质结太阳能电池，其中新合成的共聚物作为电子供体，C60 - PCBM或C70 - PCBM作为电子传输材料。在1:4的PPBzT(2) - C12:C70 - PCBM重量比下实现了1.8%的最大功率转换效率。
