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Man J, Liu Z. Balance of both short wavelength and long wavelength light absorption by blending two “D18-series” donor enables ternary polymer solar cells. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Wanwong S, Sangkhun W, Kumnorkaew P, Wootthikanokkhan J. Improved Performance of Ternary Solar Cells by Using BODIPY Triads. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2723. [PMID: 32549305 PMCID: PMC7344652 DOI: 10.3390/ma13122723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/09/2020] [Accepted: 06/13/2020] [Indexed: 02/06/2023]
Abstract
Two boron dipyrromethene (BODIPY) triads, namely BODIPY-1 and BODIPY-2, were synthesized and incorporated with poly-3-hexyl thiophene: (6,6)-phenyl-C61-butyric acid methyl ester (PCBM) P3HT:PCBM. The photovoltaic performance of BODIPY:P3HT:PCBM ternary solar cells was increased, as compared to the control binary solar cells (P3HT:PCBM). The optimized power conversion efficiency (PCE) of BODIPY-1:P3HT:PCBM was improved from 2.22% to 3.43%. The enhancement of PCE was attributed to cascade charge transfer, an improved external quantum efficiency (EQE) with increased short circuit current (Jsc), and more homogeneous morphology in the ternary blend.
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Affiliation(s)
- Sompit Wanwong
- Materials Technology Program, School of Energy, Environment and Materials, King Mongkut’s University of Technology Thonburi, 126 Pracha Uthit Road, Bang Mod, Thung Khru, Bangkok 10140, Thailand; (W.S.); (J.W.)
| | - Weradesh Sangkhun
- Materials Technology Program, School of Energy, Environment and Materials, King Mongkut’s University of Technology Thonburi, 126 Pracha Uthit Road, Bang Mod, Thung Khru, Bangkok 10140, Thailand; (W.S.); (J.W.)
| | - Pisist Kumnorkaew
- National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Pathum Thani 12120, Thailand;
| | - Jatuphorn Wootthikanokkhan
- Materials Technology Program, School of Energy, Environment and Materials, King Mongkut’s University of Technology Thonburi, 126 Pracha Uthit Road, Bang Mod, Thung Khru, Bangkok 10140, Thailand; (W.S.); (J.W.)
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Wang Y, Zhuang C, Fang Y, Kim HD, Yu H, Wang B, Ohkita H. Improvement of Exciton Collection and Light-Harvesting Range in Ternary Blend Polymer Solar Cells Based on Two Non-Fullerene Acceptors. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E241. [PMID: 32013188 PMCID: PMC7075163 DOI: 10.3390/nano10020241] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 01/23/2020] [Accepted: 01/28/2020] [Indexed: 11/17/2022]
Abstract
Abstract: A non-fullerene molecule named Y6 was incorporated into a binary blend of PBDB-T and IT-M to further enhance photon harvesting in the near-infrared (near-IR) region. Compared with PBDB-T/IT-M binary blend devices, PBDB-T/IT-M/Y6 ternary blend devices exhibited an improved short-circuit current density (JSC) from 15.34 to 19.09 mA cm-2. As a result, the power conversion efficiency (PCE) increased from 10.65% to 12.50%. With an increasing weight ratio of Y6, the external quantum efficiency (EQE) was enhanced at around 825 nm, which is ascribed to the absorption of Y6. At the same time, EQE was also enhanced at around 600-700 nm, which is ascribed to the absorption of IT-M, although the optical absorption intensity of IT-M decreased with increasing weight ratio of Y6. This is because of the efficient energy transfer from IT-M to Y6, which can collect the IT-M exciton lost in the PBDB-T/IT-M binary blend. Interestingly, the EQE spectra of PBDB-T/IT-M/Y6 ternary blend devices were not only increased but also red-shifted in the near-IR region with increasing weight ratio of Y6. This finding suggests that the absorption spectrum of Y6 is dependent on the weight ratio of Y6, which is probably due to different aggregation states depending on the weight ratio. This aggregate property of Y6 was also studied in terms of surface energy.
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Affiliation(s)
- Yanbin Wang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China; (C.Z.); (Y.F.); (H.Y.)
| | - Changlong Zhuang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China; (C.Z.); (Y.F.); (H.Y.)
| | - Yawen Fang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China; (C.Z.); (Y.F.); (H.Y.)
| | - Hyung Do Kim
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo, Kyoto 615-8510, Japan;
| | - Huang Yu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China; (C.Z.); (Y.F.); (H.Y.)
| | - Biaobing Wang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China; (C.Z.); (Y.F.); (H.Y.)
| | - Hideo Ohkita
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo, Kyoto 615-8510, Japan;
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Wang HC, Lin YC, Chen CH, Huang CH, Chang B, Liu YL, Cheng HW, Tsao CS, Wei KH. Hydrogen plasma-treated MoSe 2 nanosheets enhance the efficiency and stability of organic photovoltaics. NANOSCALE 2019; 11:17460-17470. [PMID: 31531483 DOI: 10.1039/c9nr06611j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this paper we report the effect on the power conversion efficiency (PCE) and stability of photovoltaic devices after incorporating hydrogenated two-dimensional (2D) MoSe2 nanosheets into the active layer of bulk heterojunction (BHJ) organic photovoltaics (OPV). The surface properties of 2D MoSe2 nanosheets largely affect their dispersion in the active layer blend and, thus, influence the carrier mobility, PCE, and stability of corresponding devices. We treated MoSe2 nanosheets with hydrogen plasma and investigated their influence on the polymer packing and fullerene domain size of the active layer. For the optimized devices incorporating 37.5 wt% of untreated MoSe2, we obtained a champion PCE of 9.82%, compared with the champion reference PCE of approximately 9%. After incorporating the hydrogen plasma-treated MoSe2 nanosheets, we achieved a champion PCE of 10.44%-a relative increase of 16% over that of the reference device prepared without MoSe2 nanosheets. This PCE is the one of the highest ever reported for OPVs incorporating 2D materials. We attribute this large enhancement to the enhanced exciton generation and dissociation at the MoSe2-fullerene interface and, consequently, the balanced charge carrier mobility. The device incorporating the MoSe2 nanosheets maintained 70% of its initial PCE after heat-treatment at 100 °C for 1 h; in contrast, the PCE of the reference device decreased to 60% of its initial value-a relative increase in stability of 17% after incorporating these nanosheets. We also incorporated MoSe2 nanosheets (both with and without treatment) into a polymer donor (PBDTTBO)/small molecule (IT-4F) acceptor system. The champion PCEs reached 7.85 and 8.13% for the devices incorporating the MoSe2 nanosheets with and without plasma treatment, respectively-relative increases of 8 and 12%, respectively, over that of the reference. These results should encourage a push toward the implementation of transition metal dichalcogenides to enhance the performances of BHJ OPVs.
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Affiliation(s)
- Hao-Cheng Wang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Yu-Che Lin
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Chung-Hao Chen
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Chi-Hsien Huang
- Department of Materials Engineering, Ming Chi University of Technology, 24301 New Taipei City, Taiwan
| | - Bin Chang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Yi-Ling Liu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Hao-Wen Cheng
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Cheng-Si Tsao
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan and Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan
| | - Kung-Hwa Wei
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan. and Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu 30010, Taiwan
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