Article
Multidisciplinary Sciences
Jaemin Kong, Yongwoo Shin, Jason A. Rohr, Hang Wang, Juan Meng, Yueshen Wu, Adlai Katzenberg, Geunjin Kim, Dong Young Kim, Tai-De Li, Edward Chau, Francisco Antonio, Tana Siboonruang, Sooncheol Kwon, Kwanghee Lee, Jin Ryoun Kim, Miguel A. Modestino, Hailiang Wang, Andre D. Taylor
Summary: A fast and reproducible doping method has been reported in this study, involving bubbling a spiro-OMeTAD:LiTFSI solution with CO2 under ultraviolet light. This method quickly promotes p-type doping of spiro-OMeTAD, resulting in significantly higher conductivity without the need for any post-treatments.
Article
Chemistry, Multidisciplinary
Meizi Wu, Yuwei Duan, Lu Yang, Peng You, Zhijun Li, Jungang Wang, Hui Zhou, Shaomin Yang, Dongfang Xu, Hong Zou, Zhike Liu
Summary: The efficiency and stability of perovskite solar cell (PSC) are improved through interface engineering, specifically using P-biguanylbenzoic acid hydrochloride (PBGH) to modify the tin oxide (SnO2)/perovskite interface. PBGH effectively passivates trap states and promotes high-quality perovskite film formation, resulting in a champion power conversion efficiency (PCE) of 24.79% for the PBGH-modified PSC. Furthermore, the PBGH modification enhances the stability of the PSC under high temperature/humidity and light illumination conditions.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Energy & Fuels
Guiqiang Wang, Dongsheng Wang, Jiarun Chang, Fanning Meng, Wanchun Xiang
Summary: This article summarizes the progress in using dipolar interlayers to improve the performance of perovskite solar cells (PSCs). The dipolar interlayers in PSCs are categorized based on the device structure, and the effects of each type of dipolar interlayer on interface energy-level structure, interface charge transport and recombination, interface defect passivation, perovskite morphology, and device performance are discussed. A perspective on developing more effective dipolar interlayer materials and further enhancing device performance from the viewpoint of the interface and dipolar interlayers is also provided.
Article
Chemistry, Physical
Staffan Dahlstrom, Sebastian Wilken, Yadong Zhang, Christian Ahlang, Stephen Barlow, Mathias Nyman, Seth R. Marder, Ronald Osterbacka
Summary: This study explores the potential of cross-linking technology in organic electronic devices, particularly in organic solar cells. A newly synthesized photoreactive tris-azide cross-linker demonstrated high efficiency and excellent charge extraction properties in a p-doped polymer used as a hole transport layer. However, high doping levels in the interlayer were found to decrease solar cell efficiency due to dopant diffusion into the active layer. Care must be taken in future cross-linker material development to immobilize both the host and dopants effectively.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Qiang Lou, Yufang Han, Chang Liu, Kanghui Zheng, Jinsheng Zhang, Xia Chen, Qing Du, Chong Chen, Ziyi Ge
Summary: This work presents a new type of SnO2 passivator, which improves the efficiency of perovskite solar cells by optimizing molecular stacking to enhance interfacial characteristics. The impressive power conversion efficiency over 23% achieved with this new passivator is among the highest reported values for triple-cation perovskite systems to date.
ADVANCED ENERGY MATERIALS
(2021)
Article
Multidisciplinary Sciences
Hanul Min, Do Yoon Lee, Junu Kim, Gwisu Kim, Kyoung Su Lee, Jongbeom Kim, Min Jae Paik, Young Ki Kim, Kwang S. Kim, Min Gyu Kim, Tae Joo Shin, Sang Il Seok
Summary: By introducing an interlayer between the electron-transporting and perovskite layers in perovskite solar cells, researchers have successfully enhanced charge extraction and transport from the perovskite, leading to higher power conversion efficiency and fewer interfacial defects. The coherent interlayer allowed the fabrication of devices with a certified efficiency of 25.5%, which maintained about 90% of its initial efficiency even after continuous light exposure for 500 hours. The findings provide guidelines for designing defect-minimizing interfaces in metal halide perovskites and electron-transporting layers.
Article
Chemistry, Multidisciplinary
Tao Zhu, Lening Shen, Sangni Xun, Julio S. Sarmiento, Yongrui Yang, Luyao Zheng, Hong Li, He Wang, Jean-Luc Bredas, Xiong Gong
Summary: By incorporating n-type, low-optical-gap conjugated organic molecules into 2D:3D mixed perovskite composites, the performance and stability of perovskite solar cells can be improved.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Alina F. Latypova, Nikita A. Emelianov, Dmitry O. Balakirev, Polina K. Sukhorukova, Nadezhda K. Kalinichenko, Petr M. Kuznetsov, Yuriy N. Luponosov, Sergey M. Aldoshin, Sergey A. Ponomarenko, Pavel A. Troshin, Lyubov A. Frolova
Summary: This study explores a series of small molecules as dopant-free hole-transport materials for high-efficiency and stable perovskite solar cells. The best performance is achieved using the triazatruxene-based molecule TAT-2T-CNA, which exhibits optimal optoelectronic properties and defectless film morphology. The use of scanning near-field infrared microscopy is shown to be useful for detecting and visualizing defects in the hole-transport materials, which strongly correlate with device performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Ru Wang, Zhiming Gong, Yue Jiang, Shuangshuang Huang, Baiquan Liu, Guofu Zhou, Jun-Ming Liu, Jinwei Gao
Summary: The development of high-performance and low-cost organic small molecular hole transport materials (HTMs) is a challenging task. In this study, a series of molecules were constructed as planar HTMs, and TEG-CZ-POZ exhibited the highest power conversion efficiency (PCE) and low cost.
SURFACES AND INTERFACES
(2022)
Review
Materials Science, Multidisciplinary
Qiang Guo, Chen-Yun Wang, Tasawar Hayat, Ahmed Alsaedi, Jian-Xi Yao, Zhan-Ao Tan
Summary: This review discusses the recent developments, working mechanism, and charge dynamic in integrated perovskite/organic solar cells (IPOSC), as well as the potential to improve device performance.
Article
Chemistry, Physical
Weiping Wang, Baofeng Zhao, Heng Zhao, Zhiyuan Cong, Liuchang Wang, Haimei Wu, Wei Ma, Zhi Yang, Zihui Meng, Chao Gao
Summary: A series of asymmetric A-pi-D-pi'-A non-fullerene acceptors were designed and synthesized, and h-IEICO-4F and h-IEICO-4Cl showed excellent photovoltaic performances due to their special molecular structures and electron-attracting properties, with an efficiency of 11.65% achieved for the J52:h-IEICO-4F device.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Weiping Wang, Baofeng Zhao, Heng Zhao, Zhiyuan Cong, Liuchang Wang, Haimei Wu, Wei Ma, Zhi Yang, Zihui Meng, Chao Gao
Summary: A series of asymmetric acceptor-pi-donor-pi '-acceptor-type (A-pi-D-pi '-A) non-fullerene acceptors (NFAs) were synthesized by linking halogenated ending groups at the 4-position of 3-ethylhexoxythiophene (pi-segment) on one side and at the 5 position of 3-ethylhexoxythiophene (pi'-segment) on the other side. The asymmetrical molecular structure and distinct pi-bridged segments resulted in a half-planar-half twisted backbone configuration. The fluorine and chlorine atoms on h-IEICO-4F and h-IEICO-4Cl exhibited excellent electron-attracting properties, leading to red-shifted absorption and down-shifted molecular energy levels. The J52:h-IEICO-4F device showed superior performance with enhanced exciton dissociation and collection efficiency, suppressed charge recombination, high and balanced charge transport ability, improved morphological properties, and better crystallinity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Dan Zhang, Xiang Zhang, Tonghui Guo, Junjie Zou, Yuan Zhou, Junjun Jin, Zhenkun Zhu, Qiang Cao, Jing Zhang, Qidong Tai
Summary: The use of small molecules, including ethylenediaminetetraacetic acid (EDTA) and its derivatives, to functionalize the zinc oxide (ZnO) interlayers at the SnO2/CsPbI2Br buried interface improves the photovoltaic performance of low-temperature carbon-based inorganic perovskite solar cells (C-IPSCs). This strategy simultaneously repairs defects in ZnO and perovskite films, adjusts interfacial energy level alignment, and enhances interfacial contact, inhibiting ion migration, reducing charge recombination, and promoting electron transport.
Article
Chemistry, Physical
Qi Cao, Yuke Li, Yixin Zhang, Junsong Zhao, Tong Wang, Bowen Yang, Xingyu Pu, Jiabao Yang, Hui Chen, Xingyuan Chen, Xiaoqiang Li, Shahnaz Ghasemi, Hadi Salari, Anders Hagfeldt, Xuanhua Li
Summary: In this study, a wide-bandgap n-type semiconductor B4PyPPM was introduced to modify the perovskite film via an anti-solvent method. This modification reduced trap state densities and inhibited nonradiative recombination, resulting in improved efficiency and stability of the perovskite film.
ADVANCED ENERGY MATERIALS
(2022)
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
Nanoscience & Nanotechnology
Changjian Song, Xiaohui Liu, Xiaodong Li, Ying-Chiao Wang, Li Wan, Xiaohua Sun, Wenjun Zhang, Junfeng Fang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Materials Science, Multidisciplinary
Amjad Islam, Dongdong Zhang, Khurram Usman, Ahmad Hassan Siddique, Abdul Ghafar Wattoo, Hamad Khalid, Xinhua Ouyang, Lian Duan, Ziyi Ge
Review
Chemistry, Physical
Xiaodong Li, Wenjun Zhang, Khurram Usman, Junfeng Fang
ADVANCED ENERGY MATERIALS
(2018)
Article
Chemistry, Physical
Amjad Islam, Khurram Usman, Abdul Ghafar Wattoo, Tauseef Shahid, Nadeem Abbas, Hafiz Muhammad Adeel Sharif, Ahmad Hassan Siddique, Manan Ahmed, Ziyi Ge, Xinhua Ouyang
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2019)
Article
Chemistry, Applied
Amjad Islam, Zhiheng Wang, Shaomin Ji, Khurram Usman, Syed Comail Abbas, Jianguo Li, Lihui Chen, Mudassir Iqbal, Shi-Jian Su, Xinhua Ouyang
Article
Materials Science, Multidisciplinary
Ying-Chiao Wang, Shao-Ku Huang, Toshihiro Nakamura, Yu-Ting Kao, Chun-Hao Chiang, Di-Yan Wang, Yuan Jay Chang, Nobuyoshi Koshida, Toshikazu Shimada, Shihao Liu, Chun-Wei Chen, Kazuhito Tsukagoshi
NPG ASIA MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Ying-Chiao Wang, Chun-Hao Chiang, Chi-Ming Chang, Hiroaki Maeda, Naoya Fukui, I-Ta Wang, Cheng-Yen Wen, Kuan-Cheng Lu, Shao-Ku Huang, Wen-Bin Jian, Chun-Wei Chen, Kazuhito Tsukagoshi, Hiroshi Nishihara
Summary: An air-stable pi-conjugated 2D bis(dithiolene)iron(II) coordination nanosheet (FeBHT CONASH) was synthesized through bottom-up liquid/liquid interfacial polymerization. The FeBHT exhibited self-powered photoresponses, high spectral responsivity, specific detectivity, and external quantum efficiency, with remarkable long-term air stability. These results open up new possibilities for the application of organometallic 2D materials in the field of optoelectronics.
Article
Nanoscience & Nanotechnology
Yukiya Umeta, Hiroshi Suga, Mihiro Takeuchi, Shushu Zheng, Takatsugu Wakahara, Ying-Chiao Wang, Yasuhisa Naitoh, Xing Lu, Akichika Kumatani, Kazuhito Tsukagoshi
Summary: Fullerenes are spherical clusters composed entirely of carbon atoms with an inner space that can accommodate atoms or small molecules, forming endohedral fullerenes. Endohedral fullerenes can modify the electronic state of the carbon cage and function as tiny electronic units. Lu3N@C-80 nanowires exhibited negative differential resistance in current-voltage measurements.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Khurram Usman, Amjad Islam, Syed Hamad Ullah Shah, Kashif Javaid, Al Amin, Zeeshan Mustafa, Abdul Ghafar Wattoo, Nadeem Abbas, Ziyi Ge
Summary: A new deep-blue light-emitting material, TPA-PyI, is developed for OLEDs by merging different unit structures, exhibiting good emission performance and thermal stability.
Article
Nanoscience & Nanotechnology
Mihiro Takeuchi, Yukiya Umeta, Hiroshi Suga, Takatsugu Wakahara, Ying-Chiao Wang, Yasuhisa Naitoh, Katsunori Wakabayashi, Kazuhito Tsukagoshi
Summary: Fullerene derivatives can improve the transport properties of devices through chemical functionalization, and the polymerization and depolymerization of fullerene polymer strings can be controlled to achieve resistance switching elements.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Ying-Chiao Wang, Chun-Hao Chiang, Chun-Jen Su, Je-Wei Chang, Chi-Ying Lin, Chia-Chun Wei, Shao-Ku Huang, Hiroaki Maeda, Wen-Bin Jian, U-Ser Jeng, Kazuhito Tsukagoshi, Chun-Wei Chen, Hiroshi Nishihara
Summary: In this study, a liquid/liquid interfacial synthesis of terpyridine-zinc(ii) (ZnTPY) coordination nanosheets (CONASHs) was reported, which can enhance the crystallization of PbI2-based perovskite and thus boost the efficiency of perovskite solar cells (PSCs).
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Shao-Ku Huang, Ying-Chiao Wang, Wei-Chen Ke, Yu-Ting Kao, Nian-Zu She, Jia-Xing Li, Chih-Wei Luo, Atsushi Yabushita, Di-Yan Wang, Yuan Jay Chang, Kazuhito Tsukagoshi, Chun-Wei Chen
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Chemistry, Multidisciplinary
Shihao Liu, Ying-Chiao Wang, Chi-Ming Chang, Takeshi Yasuda, Naoya Fukui, Hiroaki Maeda, Peihua Long, Kazuo Nakazato, Wen-Bin Jian, Wenfa Xie, Kazuhito Tsukagoshi, Hiroshi Nishihara
Correction
Materials Science, Multidisciplinary
Liping Zhu, Changjian Song, Xiaodong Li, Ying-Chiao Wang, Wenxiao Zhang, Xiaohua Sun, Wenjun Zhang, Junfeng Fang
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Chemistry, Multidisciplinary
Ying-Chiao Wang, Junwei Chang, Liping Zhu, Xiaodong Li, Changjian Song, Junfeng Fang
ADVANCED FUNCTIONAL MATERIALS
(2018)
