Synthesis and Characterization of Poly(3-hexylthiophene)-b-Polystyrene for Photovoltaic Application
Synthesis and Characterization of Poly(3-hexylthiophene)-b-Polystyrene for Photovoltaic Application
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DOI：
10.3390/polym3010558
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发表时间：
2011-03-01
期刊：
影响因子：
5
通讯作者：
Ogino, Kenji
中科院分区：
文献类型：
--
作者：
Gu, Zhijie;Tan, Ying;Ogino, Kenji
采用原子转移自由基聚合（ATRP）和格氏易位聚合（Grignard）法制备了聚3-己基噻吩（P3 HT）嵌段聚苯乙烯（P3 HT-b-PS）。通过凝胶渗透色谱（GPC）和核磁共振（NMR）证实了嵌段共聚物的形成。差示扫描量热法（DSC）分析表明，嵌段共聚物中PS发生了玻璃化转变，P3 HT发生了熔融/结晶，呈现微相分离结构，原子力显微镜（AFM）和紫外-可见吸收光谱也证实了这一点。研究了退火对P3 HT-b-PS和[6，6]-苯基-C-61-丁酸甲酯（PCBM）复合膜形貌的影响。评估使用P3 HT-b-PS和PCBM制造的光伏电池。
Poly(3-hexylthiophene)-block-polystyrene (P3HT-b-PS) was synthesized by Suzuki coupling reaction between P3HT and PS, prepared by Grignard metathesis polymerization and atom transfer radical polymerization (ATRP), respectively. The formation of block copolymer was confirmed by gel permeation chromatography (GPC) and NMR. Differential scanning calorimetry (DSC) thermogram of block copolymers showed glass transition of PS block and melting/crystallization of P3HT block, suggesting a microphase separated structure, which was also confirmed by atomic force microscopy (AFM) images and UV-vis absorption spectra. The annealing effect on the morphology of the composite films consisting of P3HT-b-PS and [ 6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) was investigated. Photovoltaic cells fabricated using P3HT-b-PS and PCBM were evaluated.