Article
Materials Science, Multidisciplinary
Jing De Chen, Hui-Min Liu, Hao Ren, Ye-Fan Zhang, Hong-Yi Hou, Yan-Qing Li, Zisheng Su, Jian-Xin Tang
Summary: Semitransparent organic solar cells face challenges in color tunability. This study proposes a method using amorphous photonic crystals as substrates to achieve viewing-angle-independent color reflection, showing variations from blue to pink. The cells on flexible plastic also maintain stable colors even in bending state.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Linge Xiao, Yanxun Li, Hong Zhang, Gaosheng Huang, Qian Cheng, Shilin Li, Yuan Zhang, Huiqiong Zhou
Summary: Semitransparent organic photovoltaics (ST-OPVs) have attracted attention for their high power generation, thermal insulation, and aesthetic features. However, traditional optical evaluation only focuses on transmission properties and ignores reflection behaviors. In this study, an optical microcavity architecture was introduced into ST-OPVs to achieve high transmittance homogeneity and controllable reflection by tuning the thickness of individual layers. A set of parameters was proposed to quantitatively describe the optical characteristics.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Elmira Annabi Milani, Mina Piralaee, Asghar Asgari
Summary: This study investigates the performance of semitransparent organic solar cells with a Glass/MoO3/Ag/MoO3/PBDB-T:ITIC/TiO2/Ag/PML/1DPCs structure, and explores the effects of microcavity with 1-dimensional photonic crystals (1DPCs) on the solar cell performance, including power conversion efficiency, average visible transmittance, Light utilization efficiency (LUE), color coordinates in the CIE color space, and CIE LAB. An analytical calculation including the density of exactions and their displacement is used to model the devices. The model shows that the presence of microcavity can improve the power conversion efficiency by about 17% compared to the absence of microcavity, while the color coordinates are not significantly changed. The device can transmit high-quality light with a near-white sensation to the human eye.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Kuibao Yu, Wei Song, Jinfeng Ge, Kanghui Zheng, Lin Xie, Zhenyu Chen, Yi Qiu, Ling Hong, Cuirong Liu, Ziyi Ge
Summary: Optimizing the morphology of the photoactive layer is a simple yet promising approach to improve the power conversion efficiencies of organic solar cells. Different post-processing treatments, including thermal annealing and solvent annealing, were compared to investigate their effects on device performances. The results showed that solvent annealing effectively improved the distribution and aggregation of polymer donors and small molecule acceptors, leading to an optimized active layer film morphology and higher conversion efficiency. In addition, a relatively high light utilization efficiency was achieved by utilizing a transparent electrode, resulting in a remarkable power conversion efficiency and visible-light transmittance.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Zhipeng Yin, Huan Zhao, Yang Liu, Xunwen Xiao, Yong Zhang, Huahang Lai, Ning Li, Haiqiao Wang
Summary: In this study, inverted semitransparent organic solar cells were fabricated by using a layer-by-layer-processed active layer and an ultrathin metal electrode. These cells exhibited optimal efficiency, average visible light transmittance, and high thermal and light stability, making them suitable for applications in building-integrated photovoltaics, agrivoltaics, floating photovoltaics, and wearable electronics.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Energy & Fuels
Benjamin R. Luginbuhl, Seo-Jin Ko, Niva A. Ran, Huawei Hu, Shona M. Becwar, Akchheta Karki, Martin Seifrid, Takashi Okubo, Ming Wang, Harald W. Ade, Bradley F. Chmelka, Guillermo C. Bazan, G. N. Manjunatha Reddy, Thuc-Quyen Nguyen
Summary: Organic solar cells require transparency while maintaining high efficiency. By using non-fullerene acceptors, higher average visible transmittance and higher open-circuit voltage can be achieved. Research suggests that non-fullerene acceptors may perform better in semi-transparent solar cells.
Article
Engineering, Environmental
Jung Won Yoon, Hyemin Bae, Jonghee Yang, Jong-Woon Ha, Changjin Lee, Jaewon Lee, Sung Cheol Yoon, Hyosung Choi, Seo-Jin Ko
Summary: Semi-transparent organic solar cells (ST-OSCs) have attracted significant attention for applications such as building-integrated photovoltaics and smart windows. In this study, cyclopentadithiophene (CPDT) core-based NIR-absorbing polymer donors (PL1 and PL2) were synthesized. The results showed that PL2 incorporation in ST-OSCs achieved higher power conversion efficiency and light utilization efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Energy & Fuels
Linge Xiao, Gaosheng Huang, Hong Zhang, Xuning Zhang, Yanxun Li, Shilin Li, Tianze Jiang, Bing Han, Yuan Zhang, Huiqiong Zhou
Summary: Compared to inorganic solar cells, organic solar cells and perovskite solar cells have gained attention due to their unique properties such as tunable colors, low cost, solution processing, and flexibility. Recent research has focused on enhancing the photoelectric performance of these solar cells through light modulation and transparent electrode optimization strategies.
Article
Chemistry, Multidisciplinary
Dongsheng Xie, Yue Zhang, Xiyue Yuan, Youle Li, Fei Huang, Yong Cao, Chunhui Duan
Summary: Efficient transparent organic solar cells can be achieved by developing ultrawide bandgap polymers and near-infrared acceptors. This study demonstrates the potential of ultrawide bandgap polymers for efficient colorful semitransparent organic solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Optics
Benedikt Blaesi, Mario Hanser, Klaus Jaeger, Oliver Hoehn
Summary: Solar cells can enhance light trapping efficiency by utilizing gratings. We present an analytical model to optimize the grating period and provide guidelines for maximizing light trapping in high-end solar cells.
Article
Energy & Fuels
Leonie Pap, Bertolt Schirmacher, Esther Bloch, Shankar Bogati, Philipp Viehmann, Arnulf Scheel, David Mueller, Mathias List, Birger Zimmermann, Uli Wuerfel
Summary: The light utilization efficiency (LUE) of semitransparent organic solar cells (STOSCs) is improved using an infrared reflecting back electrode, increasing current while maintaining high visible transparency. The optimized design achieves a record LUE of 4.0% for ITO-free STOSCs, with an efficiency of 8.7% and average visible transmission of 46.3%. The halogen-free processability enables STOSC production for power-generating windows and greenhouses.
Article
Engineering, Environmental
Lin Zhao, Xuexiang Huang, Yukai Wang, Sang Young Jeong, Bin Huang, Jiawei Deng, Jiabin Liu, Yujun Cheng, Han Young Woo, Feiyan Wu, Limin Chen, Lie Chen
Summary: Semitransparent organic solar cells have considerable application prospects in various fields. However, balancing power conversion efficiency and average visible transmittance has been a challenge. This study developed a high-performance ternary active layer by combining highly photovoltaic and highly transparent materials, achieving improved PCE, AVT, and light utilization efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Jinyao Zhong, Haitao Xu, Junwei Zhao, Fuhao Gao, Jinxin Zhou, Yongbing Long
Summary: This study proposes a new type of microcavity-based semitransparent organic solar cell that can achieve high transmittance without reducing efficiency by inserting magnesium fluoride microcavities between the metal layer and the organic layer. It has potential applications in colored photovoltaic glass and building-integrated photovoltaics.
ORGANIC ELECTRONICS
(2023)
Article
Optics
Samia Ahmed Nadi, Karsten Bittkau, Florian Lentz, Kaining Ding, Uwe Rau
Summary: The Hutong and VOSTBAT structures exhibit high photocurrent densities in thin silicon heterojunction solar cells, surpassing the traditional Lambertian reference values.
Article
Chemistry, Multidisciplinary
Huaizhi Gao, Runnan Yu, Yongshuai Gong, Zongwen Ma, Zhangwei He, Yiman Dong, Kunxiang Xu, Yiming Bai, Zhan'ao Tan
Summary: In this study, small organic molecules with dual functions of light trapping and electron collection were designed and synthesized for use in organic solar cells. The use of these molecules successfully improved the light absorption efficiency and power conversion efficiency of the cells. One of the molecules also achieved a record-level power conversion efficiency.
