Article
Chemistry, Multidisciplinary
Seid Yimer Abate, Yifang Qi, Qiqi Zhang, Surabhi Jha, Haixin Zhang, Guorong Ma, Xiaodan Gu, Kun Wang, Derek Patton, Qilin Dai
Summary: This study develops an eco-friendly solvent engineering method to fabricate large-area all-inorganic perovskite films using a slot-die coater at low temperatures, achieving high power conversion efficiency (PCE) and long-term stability. It is of great significance for accelerating the reliable manufacturing of perovskite devices.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Baocai Du, Yunlong Ma, Chuanhang Guo, Jinlong Cai, Donghui Li, Shili Cheng, Dan Liu, Qingdong Zheng, Tao Wang
Summary: This study investigates the use of halogen-free solvent system to replace traditional halogenated solvents in organic solar cells, demonstrating a boosted maximum power conversion efficiency using hot-casting method. By incorporating another donor or acceptor as the third component, the device performance can be further improved.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Yi-Fan Shen, Jianqi Zhang, Chenyang Tian, Dingding Qiu, Zhixiang Wei
Summary: A high-efficiency flexible all-polymer solar cell device was fabricated by slot-die coating with controlled coating temperatures, achieving an efficiency of 11.24% on a 1 cm(2) flexible substrate. The crystallinity of the polymer acceptor was found to play a crucial role in the device performance. The all-polymer flexible devices also exhibited superior mechanical bending stability, maintaining over 95% of the initial efficiency after a 1000-cycle bending test.
Article
Engineering, Multidisciplinary
Yongquan Qing, Cai Long, Kai An, Changsheng Liu
Summary: This article introduces a robust and eco-friendly superhydrophobic coating (RESC), which is prepared by a hybrid assembly between naturally-sourced raw material and hydrophobic nanoparticles. The coating exhibits excellent antifouling performance and mechanical robustness, making it suitable for various harsh environments.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yue Yu, Rui Sun, Tao Wang, Xinxin Yuan, Yao Wu, Qiang Wu, Mumin Shi, Wenyan Yang, Xuechen Jiao, Jie Min
Summary: This study demonstrates an effective co-solvent blending strategy to improve the molecular organization of a chlorinated small molecule acceptor and phase separation with the corresponding donor, leading to improved photovoltaic performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
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
Hongmei Zhuo, Xiaojun Li, Jinyuan Zhang, Shucheng Qin, Jing Guo, Ruimin Zhou, Xin Jiang, Xiangxi Wu, Zekun Chen, Jing Li, Lei Meng, Yongfang Li
Summary: Two giant molecule acceptors, EV-i and EV-o, with longer alkyl side chains were developed for fabricating high efficiency organic solar cells (OSCs). The OSC with EV-i as acceptor processed by the non-halogenated solvent exhibited a higher PCE of 18.27%, while EV-o showed a much lower PCE of 2.50%. This indicates that giant molecule acceptors with suitable linking site are excellent candidates for high performance OSCs processed by non-halogenated solvents.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
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
Polymer Science
Saeah Kim, Huijeong Choi, Myeongjae Lee, Hyeseung Jung, Yukyung Shin, Seul Lee, Kyungkon Kim, Myung Hwa Kim, Kyungwon Kwak, BongSoo Kim
Summary: Organic solar cells (OSCs) with high power conversion efficiencies have been typically made using toxic halogenated solvents. Non-halogenated solvents have emerged as a potential alternative, but achieving optimal morphology has been challenging. In this study, we investigated the dependence of photovoltaic properties of all-polymer solar cells (APSCs) on various high-boiling-point non-halogenated additives. Our results showed that using an additive with an optimal boiling point can lead to better photovoltaic performance and favorable polymer blend morphology, contributing to the development of eco-friendly APSCs.
Article
Chemistry, Applied
Ruofei Hao, Yafeng Liu, Xiong Deng, Xiaoyuan Chen, Jie Li, Yushuang Qi, Songting Tan
Summary: Matching the end groups with alkoxy side chains can improve the properties of fused-ring electron acceptors (FREAs) and enhance the performance of organic solar cells.
Article
Chemistry, Multidisciplinary
Apostolos Koutsioukis, Vassiliki Belessi, Vasilios Georgakilas
Summary: A green approach was used to functionalize multiwalled carbon nanotubes (MWNTs) with hydrophilic groups, resulting in a highly conductive all-carbon hybrid by mixing with graphene nanosheets. The end product was a water based conductive ink suitable for industrial printing techniques, utilizing solid state reactions and non-toxic solvents.
Article
Chemistry, Multidisciplinary
Chucheng Yang, Mengyun Jiang, Shanshan Wang, Bao Zhang, Peng Mao, Han Young Woo, Fujun Zhang, Jin-liang Wang, Qiaoshi An
Summary: This study presents a method for preparing organic solar cells (OSCs) using high-boiling solvents. The hot-casting strategy facilitates the fast and synchronous molecular assembly of both donor and acceptor in the active layer, leading to improved performance of the cells. Experimental results demonstrate that hot-casting OSCs achieve top-ranked device efficiencies based on different matrixes and high-boiling solvents.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Xinrui Li, Haoyu Yang, Xiaoyang Du, Hui Lin, Gang Yang, Caijun Zheng, Silu Tao
Summary: Sequential layer-by-layer deposition method is a promising approach for highly efficient organic solar cells, but most devices prepared by this method use toxic solvents, hindering their commercial production. In this study, we successfully fabricated bilayer devices using a non-halogenated solvent and further improved their performance by doping a third component. Our results demonstrate that precise tuning of material distribution by layer-by-layer method, combined with the use of eco-friendly solvents, is an effective way to achieve high-performance organic solar cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Neha Chaturvedi, Nicola Gasparini, Daniel Corzo, Jules Bertrandie, Nimer Wehbe, Joel Troughton, Derya Baran
Summary: Slot-die coating is utilized to fabricate fully solution processed organic solar cells, achieving high efficiency and stability. Demonstrated inverted OSCs and semi-transparent OSCs using solution processed Ag nanowire electrodes showcased the scalability and reproducibility of the technique.
ADVANCED FUNCTIONAL MATERIALS
(2021)
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.
Article
Chemistry, Multidisciplinary
De-Li Ma, Qian-Qian Zhang, Chang-Zhi Li
Summary: The modulation of halogen substituents on aromatic side chains improves the efficiency and stability of organic solar cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Haiqin Xiao, Junfang Lv, Miao Liu, Xia Guo, Xinxin Xia, Xinhui Lu, Maojie Zhang
Summary: In this study, a novel polymer acceptor (PY-DF) was developed by polymerizing small molecule acceptor (SMA) monomers with difluorothiophene linkers. Compared to non-fluorinated PYT, PY-DF exhibited better intra-molecular conjugation and enhanced interchain packing, resulting in improved electron mobility and reduced energetic disorder. Furthermore, PY-DF showed good miscibility with polymer donor, leading to optimized phase segregation for superior exciton dissociation and charge transport. The PY-DF-based all-polymer solar cells achieved a higher power conversion efficiency (PCE) of 15.7% with simultaneously enhanced short-circuit current density (J(SC)) and open-circuit voltage (V-OC).
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Shihao Chen, Minghao Dong, Yuanqing Bai, Yuting Chen, Yuang Fu, Lin Shao, Xinhui Lu, Chunchen Liu, Kai Zhang, Hongbin Wu, Fei Huang
Summary: In this study, two novel acceptor-donor-acceptor (A-D-A) conjugated molecules, ABBT-BO and ABBT-DT, using dithieno-1,4-azaborine as the core D unit have been designed and synthesized. Both molecules exhibited excellent solubility, strong and broad absorption and appropriate energy levels, enabling them to be promising candidates for non-fullerene acceptors (NFAs). The PM6:ABBT-BO based OSCs achieved a power conversion efficiency (PCE) of 10.07%, the highest reported efficiency for NFAs featuring BN-heteroarenes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Tongle Xu, Zhenghui Luo, Ruijie Ma, Zhanxiang Chen, Top Archie Dela Pena, Heng Liu, Qi Wei, Mingjie Li, Cai'e Zhang, Jiaying Wu, Xinhui Lu, Gang Li, Chuluo Yang
Summary: This study investigates the design principles of small molecule acceptors (SMAs) for organic solar cells (OSCs) and reveals that the introduction of chlorine atoms can reduce intramolecular charge transfer effects while increasing LUMO values. Among the studied SMAs, Py5 with two chlorine atoms and Py2 with ortho chlorine substitution exhibit the best performance due to their larger dipole moments and smaller pi center dot center dot center dot pi stacking distances, which enable more efficient packing and aggregation behavior.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Qingya Wei, Songting Liang, Beibei Qiu, Wei Liu, Xiang Xu, Xinhui Lu, Yuang Fu, Jun Yuan, Yingping Zou
Summary: Ultra-NBG small molecule acceptors (SMAs) with synergistic alkoxy side-chain and chlorine-contained end group strategy were successfully synthesized. The absorption onset of the resulting SMAs were redshifted by introducing alkoxy chains with oxygen atom and replacing F atoms with Cl atoms. The binary devices based on these SMAs achieved power conversion efficiencies (PCEs) over 12%, and the ternary devices with further addition of BZ4F-O-1 exhibited the optimal PCE of 15.51%. This study proposes a valuable strategy for future molecular design of A-DA'D-A type ultra-NBG SMAs.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Jing Guo, Beibei Qiu, Xinxin Xia, Jinyuan Zhang, Shucheng Qin, Xiaojun Li, Xinhui Lu, Lei Meng, Zhanjun Zhang, Yongfang Li
Summary: By adjusting the thermal annealing treatment conditions and compositions of mixed acceptors, a desirable hierarchical morphology is achieved in ternary small-molecule organic solar cells (SM-OSCs). The optimized morphology enables efficient charge generation and extraction, leading to an excellent power conversion efficiency of 17.06%. Furthermore, the ternary SM-OSCs show high tolerance to device fabrication conditions and film thickness, making them suitable for large-area manufacture and future practical applications.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Ziwei Zheng, Minghao Xia, Xiayan Chen, Xuan Xiao, Jinwei Gong, Jiale Liu, Jiankang Du, Yiran Tao, Yue Hu, Anyi Mei, Xinhui Lu, Hongwei Han
Summary: The power conversion efficiency (PCE) of printable mesoscopic perovskite solar cells (p-MPSCs) is improved by introducing the polymer additive polyacrylonitrile (PAN) into the formamidinium (FA)-based perovskite. PAN forms interactions with halide perovskite, improving crystallization and carrier lifetime. The PCE of p-MPSCs is increased from 16.80% to 18.33% through this synergy.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Dongyang Li, Yulan Huang, Ruijie Ma, Heng Liu, Qiong Liang, Yu Han, Zhiwei Ren, Kuan Liu, Patrick Wai-Keung Fong, Zhuoqiong Zhang, Qing Lian, Xinhui Lu, Chun Cheng, Gang Li
Summary: Optimizing the interface between perovskite and transport layers is an efficient approach to enhance the photovoltaic performance of inverted perovskite solar cells (IPSCs). A polymeric semiconducting material, PY-IT, is introduced as an interface regulator, which effectively passivates defects and facilitates electron transfer. The IPSC devices treated with this material achieve an optimal efficiency of 23.57% and maintain approximately 80% of their initial efficiency after 1000 hours of illumination.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Honglin Tang, Junhua Ning, Ke Wang, Heng Liu, Xinhui Lu, Songting Tan, Meihua Huang, Bin Zhao
Summary: Two polymer donors, PSe-BO and PSe-HD, were designed and synthesized with DTBSe as electron-deficient units, and the effects of alkylthiophene side chains on their photophysical properties and photovoltaic performance were studied. The results showed that PSe-HD exhibited better absorption spectrum and molecular orientation compared to PSe-BO, resulting in higher charge mobility and improved photovoltaic parameters. Consequently, the polymer organic solar cell based on PSe-HD achieved a higher power conversion efficiency of 14.85%. This study provides an efficient strategy for designing polymer donors through the introduction of DTBSe and side-chain engineering.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiale Xiang, Zhi-Xi Liu, Hongzheng Chen, Chang-Zhi Li
Summary: A sustainable approach of recycling non-sustainable indium to construct efficient and stable organic solar cells (OSCs) has been developed. By applying recovered indium chloride (InCl3) as a hole-selective interfacial layer for indium tin oxide (ITO) electrode, the energy level alignment, parasitic absorption, and charge recombination losses of OSCs are significantly improved. The OSCs and modules achieve remarkable power conversion efficiencies (PCEs) of 18.92% and 15.20% (active area of 18.73 cm(2)), respectively.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinyu He, Zhi-Xi Liu, Hongzheng Chen, Chang-Zhi Li
Summary: Near-infrared photon-assisted annealing facilitates high-performance binary organic solar cells with an impressive efficiency of 19.25% under mild conditions, which allows selectively tuning the molecular ordering of narrow bandgap acceptors within polymer networks to achieve optimal morphologies.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Shufang Li, Changzhou Shi, Yuxia Gong, Ke Yang, Xiaoyan Luo, Lihui Jiang, Haiming Zhu, Xinhui Lu, Jun Yuan, Yingping Zou
Summary: This study presents the use of a pseudo-bilayer bulk heterojunction strategy to optimize the active layer morphology in ternary organic solar cells. The resulting PBHJ device exhibits enhanced charge generation, extended exciton lifetime, reduced charge recombination, and improved stability compared to other device structures.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Hua Tang, Zhihui Liao, Safakath Karuthedath, Si Chen, Heng Liu, Jafar I. I. Khan, Maxime Babics, Wenchao Yang, Maryam Alqurashi, Yakun He, Julien Gorenflot, Jiaming Huang, Gang Li, Stefaan De Wolf, Xinhui Lu, Christoph J. J. Brabec, Frederic Laquai, Shirong Lu
Summary: Random terpolymerization is an effective method for highly efficient and outdoor-stable terpolymer photovoltaics. Spectroscopic, morphological, and computational studies are conducted to reveal the structure-property relationships and key rules for achieving high performance. It is found that introducing a strong electron-deficient or electron-rich third component can broaden absorption and minimize non-radiative voltage losses. Additionally, the third component should manipulate the miscibility of the donor/acceptor towards a thermodynamically stable morphology. The content of the third component should be optimized to maintain molecular orientation and exciton diffusion length, reducing bimolecular carrier recombination. Terpolymer solar cells based on D18 and PM6 show enhanced power conversion efficiency and excellent outdoor stability. These findings provide a rationale for achieving high-performance and outdoor-stable terpolymer photovoltaics, leading the way to commercialization.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hongyu Wu, Chengwen Zhang, Fulin Zhu, Yu Zhu, Xinhui Lu, Ying Wan, Shao Su, Jie Chao, Lianhui Wang, Dan Zhu
Summary: Here, a poly-adenine (polyA)-mediated programmable FRET-nanoflare is presented for ratiometric intracellular ATP imaging with anti-interference capability. The programmable polyA attachment enhances the signal response for ATP, and the FRET-based nanoflare avoids false-positive signals due to probe degradation in complex environments, showing great potential for clinical diagnosis.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Shanlu Wang, Tianyi Chen, Shuixing Li, Lei Ye, Yuang Fu, Xinhui Lu, Haiming Zhu, Lijian Zuo, Minmin Shi, Hongzheng Chen
Summary: In this study, a novel molecular design strategy of polymer donors with a D-A(1)-A(2) structure was proposed to improve the performance of thiophene-based organic photovoltaics. The aggregation states of the polymer donors could be controlled by molecular weights, leading to deep-lying energy levels. When paired with a monochlorinated non-fullerene acceptor, the increase in molecular weights of the polymer donors enhanced aggregation and reduced miscibility, manipulating the domain sizes and crystallinity in blend films. The highest efficiency of 15.0% was achieved by a medium molecular weight PQC-TM donor, demonstrating the feasibility of D-A(1)-A(2) as a molecular structure for efficient thiophene ring-based polymer donors.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
