Effect of diamine treatment on the conversion efficiency of PbSe colloidal quantum dot solar cells |
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| Authors: | Seiki Kitada Einosuke Kikuchi Akira Ohno Shinji Aramaki Shinya Maenosono |
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| Institution: | 1. Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan;2. Mitsubishi Chemical Group Science and Technology Research Center, Inc. (MCRC), Kamoshida-cho, Aoba-ku, Yokohama, Kanagawa 227-8502, Japan;1. G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, Russian Federation;2. Nizhny Novgorod State University, Gagarina avenue 23/2, 603950 Nizhny Novgorod, Russian Federation;3. Institute for Physics of Microstructures of Russian Academy of Sciences, 7 ul. Akademicheskaya, 603950 Nizhny Novgorod, Russian Federation;1. Faculty of Physics and Technology, Thai Nguyen University of Science, Thai Nguyen, Viet Nam;2. Faculty of Physics, Thai Nguyen University of Education, Thai Nguyen, Viet Nam;3. Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam;4. Duy Tan University, 182 Nguyen Van Linh, Da Nang, Viet Nam;5. Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 449-791, South Korea;1. Faculty of Physics and Technology, Thai Nguyen University of Science, Thai Nguyen, Viet Nam;2. Forming Technology Group, Singapore Institute of Manufacturing and Technology, 71 Nanyang Drive, 638075, Singapore;3. Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 449-791, South Korea;4. Faculty of Physics, Thai Nguyen University of Education, Thai Nguyen, Viet Nam;5. Fundamental Faculty, Posts and Telecommunications Institute of Technology, Km10 Nguyen Trai, Hanoi, Viet Nam;6. Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam;7. Duy Tan University, 182 Nguyen Van Linh, Da Nang, Viet Nam;1. School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China;2. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China;1. School of Chemistry & Chemical Engineering, Taishan University, Taian 271000, China;2. School of Physics & Electronic Engineering, Taishan University, Taian 271000, China;3. Department of Scientific Research, Taishan University, Taian 271000, China;1. RIPE & 3D Printing, Hanbat National University, 34158, Republic of Korea;2. Department of Display Engineering, Pukyong National University, Busan, 48513, Republic of Korea;3. Department of Creative Convergence Engineering, Hanbat National University, Daejeon, 34158, Republic of Korea |
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| Abstract: | Polymer-free photovoltaic devices were fabricated via a solution process using PbSe colloidal quantum dots (QDs) and an organic semiconductor (tetrabenzoporphyrin, BP) that can be prepared in situ from a soluble precursor. The device structure was ITO/PEDOT/BP:QD/QD/Al, where the BP:QD and QD layers correspond to a bulk heterojunction and a buffer layer, respectively. The buffer layer was treated with ethylenediamine (EDA) to crosslink the QDs. As a result, the energy conversion efficiency of the EDA-treated device was superior to that of an untreated device, mainly due to an increase in the short-circuit current density. |
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