In Situ Fabrication of Poly(3-hexylthiophene)/ZnO Hybrid Nanowires with D/A Parallel-Lane Structure and Their Application in Photovoltaic Devices

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• 作者：Yi-Huan Lee ; Yu-Ping Lee ; Chi-Ju Chiang ; Ching Shen ; Yang-Hui Chen ; Leeyih Wang ; Chi-An Dai
• 刊名：Macromolecules
• 出版年：2014
• 出版时间：August 26, 2014
• 年：2014
• 卷：47
• 期：16
• 页码：5551-5557
• 全文大小：542K
• ISSN：1520-5835

文摘

In this study, we demonstrate a facile in situ synthetic strategy to fabricate self-assembled organic/inorganic hybrid nanowires, wherein a 鈥減re-crystallization鈥?approach was first utilized to co-organize P3HT molecules and zinc precursors into highly elongated nanowires, followed by a thermal oxidation treatment to directly grow ZnO nanocrystals on the existing nanofibrillar template. By further thermal annealing the ZnO embossed hybrid nanowires, a unique superhighway-like architecture which composed of alternating parallel channels of P3HT nanofibrils and ZnO nanocrystals could be further obtained. This donor/acceptor (D/A) parallel-channel structure gave access to the improvements in the exciton dissociation and charge transport, thereby enhancing photoluminescence quenching, charge transport, and device performance. The photovoltaic devices with the D/A parallel-lane structure gave a high PCE of 0.61% as compared to only 0.07% from a conventional P3HT/ZnO bulk heterojuction solar cell. Our approach offers a versatile route to coassemble inorganic nanocrystals with 蟺-conjugated polymer hosts, forming uniform one-dimensional hybrid nanochannels potentially useful in optoelectronic applications.