Application of polyaniline nanowires electrodeposited on the FTO glass substrate as a counter electrode for low-cost dye-sensitized solar cells |
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| Authors: | Thanh-Tung Duong Ta Quoc Tuan Dang Viet Anh Dung Nguyen Van Quy Dinh-Lam Vu Man Hoai Nam Nguyen Duc Chien Soon-Gil Yoon Anh-Tuan Le |
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| Affiliation: | 1. Department of Materials Engineering, Chungnam National University, Daeduk Science Town, 305-764 Daejeon, Republic of Korea;2. Department of Nanoscience and Nanotechnology, Advanced Institute of Science and Technology (AIST), Hanoi University of Science and Technology (HUST), 01 Dai Co Viet, Hai Ba Trung, Hanoi, Viet Nam;3. School of Chemical Engineering, Hanoi University of Science and Technology (HUST), 01 Dai Co Viet, Hai Ba Trung, Hanoi, Viet Nam;4. International Training Institute of Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), 01 Dai Co Viet, Hai Ba Trung, Hanoi, Viet Nam;5. Institute of Materials Science, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Hanoi, Viet Nam;6. School of Engineering Physics, Hanoi University of Science and Technology (HUST), 01 Dai Co Viet, Hai Ba Trung, Hanoi, Viet Nam |
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| Abstract: | Polyaniline nanowires (PANI NWs) were deposited onto fluorine-doped tin oxide (FTO) glass substrate using the cyclic voltammetric method with aniline monomer precursor in HCl aqueous solution. The secondary oxidation peak plays an important role in polymerization of aniline monomer and the optimization of catalytic activity of PANI-based counter electrodes was achieved by controlling the number of cycles. The photovoltaic performance of the dye-sensitized solar cells (DSSCs) with PANI NWs counter electrodes (CEs) was optimized at 4th cycles, and then following parameters were obtained: Jsc = 17.2 mA cm−2, Voc = 0.71 V, FF = 59.3%, and efficiency (η) = 7.24%. While, Jsc = 14.7 mA cm−2, Voc = 0.77 V, FF = 70.6%, and efficiency (η) = 7.98% in cells with Pt CEs. The PANI NWs were attractive as an alternative CEs for the low-cost DSSCs instead of Pt. |
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| Keywords: | Polyaniline nanowires Electrodeposition Counter electrode Dye sensitized solar cells |
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