Article
Chemistry, Multidisciplinary
Di Wang, Guanqing Zhou, Yuhao Li, Kangrong Yan, Lingling Zhan, Haiming Zhu, Xinhui Lu, Hongzheng Chen, Chang-Zhi Li
Summary: The study demonstrates that high-performance organic solar cells (OSCs) can be obtained from hot spin processing of different non-halogenated solvents, achieving the highest reported efficiency of OSCs so far. The phase evolution of ternary blends during solution-to-solid transition is found to be correlated to the substrate temperature, and optimal blend films can be secured in various non-halogenated solvents with elevated substrate temperature. As a result, high-performance OSCs with excellent power conversion efficiencies have been achieved in o-xylene, p-xylene, and toluene, respectively, representing the best-performing OSCs made from non-halogenated solvents to date.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Applied
Xiaohua Zhai, Xiangkun Wang, Kun Zhu, Caiyun Gao, Yan He, Liangmin Yu, Mingliang Sun
Summary: This study utilized a random copolymerization approach to construct terpolymers that outperformed binary copolymers in non-fullerene polymer solar cells. By using these terpolymers, higher photovoltaic performance could be achieved without the use of additives, maintaining a better balance between power conversion efficiencies and average visible transmittance in ST-PSCs.
Article
Polymer Science
Feng Zhao, Xiangjun Zheng, Shuixing Li, Kangrong Yan, Weifei Fu, Lijian Zuo, Hongzheng Chen
Summary: Organic solar cells (OSCs) have the potential for low-cost and greener solar energy utilization. This study presents high-performance OSC devices using non-halogen solvents and additives, demonstrating the advantages of green processing, flexibility, and upscaling.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
David Muller, Ershuai Jiang, Laura Campos Guzman, Paula Rivas Lazaro, Clemens Baretzky, Shankar Bogati, Birger Zimmermann, Uli Wurfel
Summary: Organic Photovoltaics (OPV) is a promising technology for powering IoT devices with artificial illumination. OPVs can achieve efficiencies as high as 30.2% under warm white LED light and show remarkable stability under indoor illumination. A study on cost-effective ITO-free cell stack with absorber materials processed from non-halogenated solvents has achieved efficiencies up to 21% with outstanding stabilities. Further efficiency increase can be expected with a wide range of potential organic semiconducting materials.
Article
Chemistry, Applied
Shanshan Ding, Yujun Cheng, Shaorong Huang, Feiyan Wu, Hui Guo, Qiannan He, Jinliang Liu, Xuexiang Huang, Lie Chen
Summary: By introducing ester group into new terpolymers, this study achieved a high power conversion efficiency under non-halogenated solvent treatment at room temperature. These polymers exhibit weaker self-aggregation properties and have the potential to be promising candidates for high performance environmental-friendly solvent processed solar cells.
Article
Chemistry, Physical
Peter Fuerk, Matiss Reinfelds, Ilie Hanzu, Theresa Hartl, Jana B. Schaubeder, Elena Zuccala, Heinz Amenitsch, Thomas Rath, Gregor Trimmel
Summary: Organic photovoltaics are a promising technology for sustainable energy conversion. By synthesizing high-permittivity active layer materials and optimizing them in a bilayer setup, we were able to prevent morphology-related efficiency losses in organic solar cells and increase their efficiency to 5.51%.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Sung Jae Jeon, Nam Gyu Yang, Young Hoon Kim, Ji Hee Yun, Doo Kyung Moon
Summary: The development of photoactive materials in organic solar cells that meet high performance, low cost, and eco-friendly processability remains challenging. A synergistic strategy was proposed in this study to design three terpolymers based on bihalogenated thiophenes to improve optical and electrochemical properties, solubility, and crystallinity. The study achieved the highest power conversion efficiency with PM7(ClCl = 0.2) and demonstrated the effectiveness of a unique layer-by-layer strategy in producing high-performance semitransparent OSCs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Na Gyeong An, Taeho Lee, Jungwoo Heo, Jae Won Kim, Seyeong Song, Woojin Lee, Bright Walker, Eunhee Lim, Jin Young Kim
Summary: This study demonstrates the successful achievement of semitransparent organic solar cells with controllable colors using non-fullerene acceptors and narrow or ultra-wide bandgap donors and acceptors. By modulating the ratios of different materials, the researchers were able to achieve balanced power conversion efficiencies and average visible transmittances for a range of colors, providing a foundation for improving the commercial viability of semitransparent organic solar cells.
Article
Chemistry, Physical
Chaoyue Zhao, Jicheng Yi, Lihong Wang, Guanyu Lu, Hui Huang, Ha Kyung Kim, Han Yu, Chen Xie, Peng You, Guanghao Lu, Mingxia Qiu, He Yan, Shunpu Li, Guangye Zhang
Summary: The development of PSMAs has significantly improved the efficiency of all-polymer solar cells. By improving processing methods and solvent selection, the electron mobility can be effectively increased, resulting in higher efficiency compared to traditional approaches.
Review
Chemistry, Physical
Baiqiao Liu, Yunhua Xu, Dongdong Xia, Chengyi Xiao, Zhaofan Yang, Weiwei Li
Summary: This review summarizes the recent progress in non-fullerene small molecule acceptors for semitransparent organic solar cells (ST-OSCs), focusing on the optimization of device structures and active layers.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Materials Science, Multidisciplinary
Youzhan Li, Jiang Wu, Xueting Yi, Zekun Liu, He Liu, Yingying Fu, Jian Liu, Zhiyuan Xie
Summary: This study successfully developed high-efficiency organic solar cells (OSCs) using non-halogenated solvents and layer-by-layer (LBL) blade-coating technique. The addition of non-halogenated solvent additive 1,2-dimethylnaphthalene (DMN) was found to promote the growth of nano-crystals and improve the photocurrent conversion efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Review
Energy & Fuels
Leiping Duan, Bram Hoex, Ashraf Uddin
Summary: Opaque and semitransparent organic solar cells have made significant progress in recent years, with efficiencies reaching over 18% and 13% respectively. These solar cells do not contain harmful elements such as lead, making them suitable for a wide range of applications. There is great potential for emerging applications such as building-integrated photovoltaics, and ongoing research aims to further enhance the performance and application potential of ST-OSCs.
Article
Nanoscience & Nanotechnology
Youzhan Li, Jiang Wu, Hao Tang, Xueting Yi, Zekun Liu, Qingqing Yang, Yingying Fu, Jian Liu, Zhiyuan Xie
Summary: The study achieved a high power conversion efficiency (>18%) for halogenated solvent spin-coated organic solar cells through developing efficient photovoltaic materials and precise morphological control. By utilizing layer-by-layer blade-coating and a non-halogenated solvent, ternary OSCs were fabricated with optimized vertical donor/acceptor distribution, improved morphology, and crystallization, leading to a PCE of 17.16%.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Xiaoxin Tan, Youle Li, Xiyue Yuan, Seoyoung Kim, Yue Zhang, Changduk Yang, Fei Huang, Yong Cao, Chunhui Duan
Summary: In this study, highly efficient PT solar cells processed from a non-halogenated solvent were reported. The power conversion efficiency reached 15.68%, which is the highest efficiency record for non-halogenated processed PT solar cells to date. The appropriate solution temperature contributed to enhanced charge transfer efficiency, balanced hole electron mobility, and reduced trap-assisted recombination. These results provide valuable implications for improving the efficiency of PT solar cells via environmentally-friendly processing.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shucheng Qin, Zhenrong Jia, Lei Meng, Can Zhu, Wenbin Lai, Jinyuan Zhang, Wenchao Huang, Chenkai Sun, Beibei Qiu, Yongfang Li
Summary: This study successfully fabricated high-performance tandem OSCs using solution processing with non-halogenated solvents without additives. The two active layers showed better phase segregation and charge transport properties, leading to an efficiency of up to 16.67%.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Guoqing Tong, Dae-Yong Son, Luis K. Ono, Yuqiang Liu, Yanqiang Hu, Hui Zhang, Afshan Jamshaid, Longbin Qiu, Zonghao Liu, Yabing Qi
Summary: The study introduces a strategy to fabricate large-area uniform and dense perovskite films with the addition of NH4Cl to the precursor solution. The resulting perovskite solar modules demonstrate high efficiency and good operational stability, exceeding 1600 hours of T-80 lifetime for the 5 x 5 cm^2 module.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Yuqiang Liu, Luis K. Ono, Guoqing Tong, Hui Zhang, Yabing Qi
Summary: In this study, efficient sky-blue PeLEDs were fabricated using DJ phase perovskites, with organic diamine cations and RbBr incorporated to increase charge utilization, enhancing radiative recombination through synergistic confinement and passivation effects. The photoluminescence quantum yield approached 70%, and the fabricated PeLEDs achieved an external quantum efficiency of 8.5% with an emission peak at 490 nm.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Physical
Guoqing Tong, Dae-Yong Son, Luis K. Ono, Hyung-Been Kang, Sisi He, Longbin Qiu, Hui Zhang, Yuqiang Liu, Jeremy Hieulle, Yabing Qi
Summary: Using pre-synthesized crystalline perovskite with perfect stoichiometry can control and reduce the density of defects in perovskite solar cells, resulting in an increase in efficiency. Pre-synthesized perovskite precursors showed a significant reduction in unwanted intermediate chemical compositions, leading to higher efficiencies in PSCs. Long-term stability measurements also demonstrated the effectiveness of using pre-synthesized perovskite in improving the performance of PSCs.
Article
Chemistry, Multidisciplinary
Yuqiang Liu, Tongle Bu, Luis K. Ono, Guoqing Tong, Hui Zhang, Yabing Qi
Summary: Perovskite light-emitting diodes (PeLEDs) have high efficiencies but are sensitive to ambient conditions. Air-prepared quasi-2D perovskites show promise for efficient PeLEDs, with controlled film characteristics and reduced phase aggregation. This work provides a potential strategy for cost-effective perovskite devices in ambient air conditions.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Hui Zhang, Luis K. Ono, Guoqing Tong, Yuqiang Liu, Yabing Qi
Summary: The rational design of TiN-TiO2 heterostructures on carbon nanotube sponge using atomic layer deposition resulted in stable Li-S batteries with high areal capacity and improved rate capability, showcasing enhanced electrochemical performance and capacity retention.
NATURE COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Guoqing Tong, Luis K. Ono, Yuqiang Liu, Hui Zhang, Tongle Bu, Yabing Qi
Summary: By adding potassium permanganate in the chemical bath deposition process, high-quality large-area SnO2 films were successfully prepared, leading to enhanced performance of perovskite solar cells (PSCs). Utilizing a multifunctional interface engineering strategy, a power conversion efficiency (PCE) of 21.70% was achieved for lab-scale PSCs, with reduced hysteresis.
NANO-MICRO LETTERS
(2021)
Article
Chemistry, Physical
Congyang Zhang, Qun Wan, Luis K. Ono, Yuqiang Liu, Weilin Zheng, Qinggang Zhang, Mingming Liu, Long Kong, Liang Li, Yabing Qi
Summary: The research introduces a facile method to synthesize stable CsPbCl3 nanocrystals with good luminescent properties and stability.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Yuqiang Liu, Luis K. Ono, Guoqing Tong, Tongle Bu, Hui Zhang, Chenfeng Ding, Wei Zhang, Yabing Qi
Summary: This study presents a new type of DJ phase CsPb(Br/Cl)(3) perovskite with asymmetric molecular configuration to improve the efficiency of blue PeLEDs and address the issue of spectral instability. By introducing asymmetric cations, stable photoluminescence spectra were achieved in perovskite films, enhancing the radiative recombination efficiency and achieving an external quantum efficiency of 2.65% in blue PeLEDs with stable spectra emission. This work provides a facile solution to the halide segregation issue in PeLEDs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Yahui Liu, Bowen Liu, Chang-Qi Ma, Fei Huang, Guitao Feng, Hongzheng Chen, Jianhui Hou, Lingpeng Yan, Qingya Wei, Qun Luo, Qinye Bao, Wei Ma, Wei Liu, Weiwei Li, Xiangjian Wan, Xiaotian Hu, Yanchun Han, Yaowen Li, Yinhua Zhou, Yingping Zou, Yiwang Chen, Yuqiang Liu, Lei Meng, Yongfang Li, Yongsheng Chen, Zheng Tang, Zhicheng Hu, Zhi-Guo Zhang, Zhishan Bo
Summary: This review examines the rapid development of organic solar cells and highlights the importance of device engineering in achieving high power conversion efficiency. The challenges, problems, and future developments in this field are also discussed.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Energy & Fuels
Tongle Bu, Luis K. Ono, Jing Li, Jie Su, Guoqing Tong, Wei Zhang, Yuqiang Liu, Jiahao Zhang, Jingjing Chang, Said Kazaoui, Fuzhi Huang, Yi-Bing Cheng, Yabing Qi
Summary: By tailoring the composition of the precursor ink and adding additives in the co-solvent system, high-efficiency perovskite solar cells over large areas have been achieved.
Article
Chemistry, Multidisciplinary
Hao Lu, Guangliu Ran, Yuqiang Liu, Zengliang Pei, Wenxu Liu, Yahui Liu, Zheng Tang, Wenkai Zhang, Zhishan Bo
Summary: In this study, a ternary blend strategy was developed to solve the difficulty of film morphology modulation in the fabrication of high-performance green-solvent-processed organic solar cells (OSCs). By introducing the third component SM16, the ternary devices achieved an excellent power conversion efficiency (PCE) of 18.20%, which is much higher than the binary devices and among the highest for green-solvents-processed OSCs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Guoqing Tong, Jiahao Zhang, Tongle Bu, Luis K. Ono, Congyang Zhang, Yuqiang Liu, Chenfeng Ding, Tianhao Wu, Silvia Mariotti, Said Kazaoui, Yabing Qi
Summary: Hybrid chemical vapor deposition (HCVD) is used to fabricate perovskite solar cells/modules (PSCs/PSMs) with the introduction of a passivation layer and a solvent, resulting in improved efficiency and stability. The oxygen loss of SnO2 in the HCVD process is mitigated by potassium sulfamate (H2KNO3S) while the uncoordinated Pb2+ in the perovskite film is passivated. N-methylpyrrolidone (NMP) is used as a solvent to dissolve PbI2 and lower the energy barrier for perovskite nucleation. The use of perovskite seeds further enhances crystal growth and grain size. The resulting solar cells and mini-modules exhibit high power conversion efficiency (PCE) and stable output performance, with excellent operational stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinyue Cui, Hongxiang Li, Hao Lu, Yuqiang Liu, Guangliu Ran, Rui Liu, Huarui Zhang, Xueqing Ma, Dawei Li, Yi Lin, Jifa Yu, Wenkai Zhang, Lei Cai, Yahui Liu, Pei Cheng, Andong Zhang, Zaifei Ma, Guanghao Lu, Zhishan Bo
Summary: Solution processability is a unique property of organic semiconductors. Improving their stacking quality without sacrificing processability remains a challenge. In this study, engineered additives are used to promote the formation of ordered aggregation of conjugated molecules, achieving both ordered aggregation and processability, and improving the performance of organic photovoltaics.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Dawei Li, Huarui Zhang, Xinyue Cui, Ya-Nan Chen, Nan Wei, Guangliu Ran, Hao Lu, Shenhua Chen, Wenkai Zhang, Cuihong Li, Yahui Liu, Yuqiang Liu, Zhishan Bo
Summary: Three nonfused ring electron acceptors were designed and synthesized with the concept of halogenation. By incorporating F or/and Cl atoms, the performance of these acceptors was improved, resulting in high-efficiency organic solar cells.
ADVANCED MATERIALS
(2023)
