Article
Chemistry, Physical
Jie Wang, Kankan Shang, Junli Xu, Liangjun Da, Yongjing Zhao, Xingguo Liu
Summary: The low air pressure in space environment affects the stability of perovskite solar cells (PSCs) and accelerates their degradation rate, mainly due to photoinduced ion migration and volatilization of organic matter. The research results provide important insights for the potential applications of PSCs in space.
JOURNAL OF POWER SOURCES
(2021)
Review
Chemistry, Multidisciplinary
Namyoung Ahn, Mansoo Choi
Summary: This review article discusses the operational stability of perovskite solar cells and modules, covering the fundamental aspects of perovskite instability and degradation mechanisms, as well as recent advances in stabilizing techniques for practical use of perovskite-based solar devices.
Article
Chemistry, Physical
Haosheng Pang, Liqi Li, Xuan Yin, Bing Zhang, Chenghui Gao, Dameng Liu
Summary: A long-term lubrication and ultralow friction coefficient are achieved by using PbS quantum dot nanocoating sliding against bearing steel balls in the air through tribo-physchemical interactions. The transfer and structural transformation of nanoparticles form a robust tribo-film, providing a new type of nanolubricant for mechanical engineering.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Tianhao Wu, Luis K. Ono, Rengo Yoshioka, Chenfeng Ding, Congyang Zhang, Silvia Mariotti, Jiahao Zhang, Kirill Mitrofanov, Xiao Liu, Hiroshi Segawa, Ryota Kabe, Liyuan Han, Yabing Qi
Summary: Nickel oxide (NiOx) is a promising hole-selective contact for efficient perovskite solar cells (PSCs), but its long-term operational lifetime is limited by light-induced degradation. This study clarifies the degradation mechanism and proposes a solution by constructing a TMSBr buffer layer, resulting in significantly improved operational lifetimes for NiOx-based PSCs.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zheng Zhang, Muhammad Akmal Kamarudin, Ajay Kumar Baranwal, Gaurav Kapil, Shahrir Razey Sahamir, Yoshitaka Sanehira, Mengmeng Chen, Liang Wang, Qing Shen, Shuzi Hayase
Summary: Lead-free tin perovskite solar cells (PKSCs) have low efficiency due to rough surface morphology and high number of defects. A posttreatment strategy using sequential passivation with acetylacetone (ACAC) and ethylenediamine (EDA) is proposed to reduce trap density, enlarge grain size, and regulate energy level. The study achieves a promising 13% efficiency with better stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Multidisciplinary Sciences
Wei Chen, Bing Han, Qin Hu, Meng Gu, Yudong Zhu, Wenqiang Yang, Yecheng Zhou, Deying Luo, Fang-Zhou Liu, Rui Cheng, Rui Zhu, Shien-Ping Feng, Aleksandra B. Djurisic, Thomas P. Russell, Zhubing He
Summary: The study demonstrates a new interfacial management strategy to effectively suppress the performance degradation of perovskite solar cells. The results indicate that using this strategy can achieve higher efficiency and longer lifetime.
Article
Materials Science, Multidisciplinary
Surendra K. Yadav
Summary: The study demonstrates that using carbon/graphite nanocomposite film as a cathode material in perovskite solar cells can significantly improve charge transport characteristics, enhance photovoltaic performance, and extend stability, especially when enhanced with alumina as an electron blocker.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Review
Materials Science, Multidisciplinary
Muhammad Younas, Tarek A. Kandiel, Ali Rinaldi, Qing Peng, Abdulaziz A. Al-Saadi
Summary: Perovskite solar cells (PSCs) have shown remarkable and fast development, with improvements in efficiency attributed to their unique structural properties and high performance. Recent research focuses on designing ambient-environment processable PSCs and understanding the impact of moisture and oxygen on their stability and efficiency.
MATERIALS TODAY PHYSICS
(2021)
Article
Energy & Fuels
Jiahong Tang, Sai Ma, Yuetong Wu, Fengtao Pei, Yue Ma, Guizhou Yuan, Ziyue Zhang, Huanping Zhou, Cheng Zhu, Yan Jiang, Yujing Li, Qi Chen
Summary: This paper investigates the mechanism of device failure during vacuum lamination of perovskite solar cells using thermal and optical simulations and experiments. It proposes a single-glass encapsulation structure that effectively prevents delamination and reduces parasitic photocurrent losses. Experimental results show that the devices encapsulated with single-glass retain exceptional stability.
Article
Chemistry, Multidisciplinary
Yuzhuo Zhang, Yanju Wang, Xiaoyu Yang, Lichen Zhao, Rui Su, Jiang Wu, Deying Luo, Shunde Li, Peng Chen, Maotao Yu, Qihuang Gong, Rui Zhu
Summary: A swift and eco-friendly synthesis route was developed for mass production of halide perovskites in the industry, leading to high-performance perovskite solar cells with superior carrier transport. Additionally, the synthesized powder exhibited superior storage stability for over 10 months, which is conducive to practical commercialization.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jiangsheng Xie, Shenghe Zhao, Pengjie Hang, Tian Chen, Bin Wen, Qixin Yin, Shichen Wei, Shengcai Zhu, Xuegong Yu, Minchao Qin, Xinhui Lu, Keyou Yan, Jianbin Xu, Pingqi Gao
Summary: In this study, the researchers found that adding 4-tert-butylpyridine (tBP) to the hole transport layers of perovskite solar cells (PSCs) can recrystallize the amorphous and defective perovskite surface layers, leading to improved efficiency and stability of the devices. They also developed a more effective additive, 4-tert-butylpiperidine (tBPp), which exhibited stronger interaction with the perovskite surface defective sites. The optimized tBPp PSC achieved a champion efficiency of 24.2% and better operation stability.
SCIENCE CHINA-MATERIALS
(2023)
Review
Nanoscience & Nanotechnology
Hongwei Zhu, Sam Teale, Muhammad Naufal Lintangpradipto, Suhas Mahesh, Bin Chen, Michael D. McGehee, Edward H. Sargent, Osman M. Bakr
Summary: This review summarizes the progress made in the stability research of single-junction, lead-based perovskite photovoltaics and discusses the origins of chemical lability and its effects on stability under various stressors. It highlights several prominent strategies for enhancing stability, including compositional tuning, barrier layers, and the fabrication of stable transport layers. The challenges that remain and the perspective on achieving >25-year stable perovskite solar cells are also discussed.
NATURE REVIEWS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yao Wang, Lingcong Li, Zhujie Wu, Ruike Zhang, Jin Hong, Jianxin Zhang, Huashang Rao, Zhenxiao Pan, Xinhua Zhong
Summary: A self-driven prenucleation strategy using formamide as the co-solvent is proposed to achieve fast nucleation and improve the crystalline quality of perovskite film.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
F. Meng, Y. Zhou, L. Gao, Y. Li, A. Liu, C. Zhang, M. Fan, G. Wei, T. Ma
Summary: This article summarizes the environmental risks and strategies for ensuring the long-term stability of C-PSCs, highlighting the most important factors affecting long-term stability and proposing strategies to improve stability and strengthen encapsulation. The conclusions also present an outlook on future work concerning stability improvement and commercial development of C-PSCs.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Yulong Wang, Pin Lv, Junye Pan, Jiahui Chen, Xinjie Liu, Min Hu, Li Wan, Kun Cao, Baoshun Liu, Zhiliang Ku, Yi-Bing Cheng, Jianfeng Lu
Summary: In this study, a hybrid vapor deposition method combined with solvent-assisted recrystallization is proposed for fabricating high-quality large-area perovskite films with low defect densities. The results show that the formation of an intermediate phase can induce the secondary growth of small grains into large ones, resulting in perovskite films with significantly reduced grain boundaries and defect densities. Additionally, the proposed method successfully suppresses all recombination reactions, leading to high efficiencies and operational stability of the perovskite solar cells and modules.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yingwei Li, Michael J. Cowan, Meng Zhou, Michael G. Taylor, He Wang, Yongbo Song, Giannis Mpourmpakis, Rongchao Jin
Article
Multidisciplinary Sciences
Jie Li, Jian Lu, Andrew Chew, Seunghwoi Han, Jialin Li, Yi Wu, He Wang, Shambhu Ghimire, Zenghu Chang
NATURE COMMUNICATIONS
(2020)
Article
Multidisciplinary Sciences
Yongbo Song, Yingwei Li, Meng Zhou, Xuan Liu, Hao Li, He Wang, Yuhua Shen, Manzhou Zhu, Rongchao Jin
Summary: This study reports a method to achieve high phosphorescence from metal nanoclusters in non-degassed solution, with a core-shell structure leading to efficient photoluminescence. Unlike other materials, this phosphorescence is less sensitive to air, which is important for lighting and biomedical applications.
Review
Chemistry, Multidisciplinary
Meng Zhou, Xiangsha Du, He Wang, Rongchao Jin
Summary: Determining the transition from metallic to molecular state in gold nanoclusters is important for understanding surface plasmon resonance and metallic bond. Various criteria such as E-g, absorption spectra, and electron dynamics are used to differentiate metallic from molecular states, emphasizing the need for multiple analyses and cross-checking. These criteria deepen understanding of metal nanoclusters and aid in designing functional nanomaterials.
Article
Multidisciplinary Sciences
Yingwei Li, Meng Zhou, Yongbo Song, Tatsuya Higaki, He Wang, Rongchao Jin
Summary: DNA has long been used as a template for constructing helical assemblies of inorganic nanoparticles, but achieving helices without biological ligands is challenging. Atomically precise nanoclusters protected by ligands demonstrate hierarchical structural complexity, similar to biomolecules. The newly synthesized homodimeric and heterodimeric gold nanoclusters self-assemble into superstructures, with heterodimeric clusters forming more complex helical superstructures driven by van der Waals interactions. The surrounding ligands on the clusters contribute to the assembly through paired steric interactions.
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
Lening Shen, Tao Zhu, Xinwen Zhang, Keven Gong, He Wang, Xiong Gong
Summary: This study presents high-performance perovskite solar cells (PSCs) based on a composite of perovskite and a low optical gap conjugated polymer. The composite film exhibits enhanced charge carrier mobility, larger crystal sizes, and suppressed non-radiation charge carrier recombination. Additionally, a photo-induced charge transfer occurs within the composite film, leading to improved power conversion efficiency (PCE) of the PSCs. The un-encapsulated PSCs also demonstrate enhanced stability and reduced photocurrent hysteresis compared to those based on pristine perovskite films.
Article
Chemistry, Multidisciplinary
Yingwei Li, Yongbo Song, Xinwen Zhang, Tongyu Liu, Tingting Xu, He Wang, De-en Jiang, Rongchao Jin
Summary: This study reports a metal-precise rod-shaped Au42(SCH2Ph)32 with a high aspect ratio of the hexagonal-close-packed Au20 kernel, which exhibits intense longitudinal absorption and effective photothermal conversion at low concentrations. The findings demonstrate that Au42 nanorods inherit the longitudinal excitation similar to metallic-state nanorods. This work highlights the potential applications of Au42 nanorods in photothermal converters, biomedical therapy, photoacoustic imaging, and photocatalysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Lening Shen, Rui Chen, Dong Zhang, Unal Cagatay Yilmazoglu, Kai Gu, Julio S. Sarmiento, Tao Zhu, Luyao Zheng, Jie Zheng, He Wang, Chunming Liu, Xiong Gong
Summary: Partially substituting Pb2+ with Nd3+ in 2D and 3D perovskites can enhance the performance of photovoltaic devices, including larger crystal size, superior crystallinity, suppressed non-radiative charge recombination, and enhanced and balanced charge transport. The perovskite photovoltaics based on this substitution exhibit high power conversion efficiency, photoresponsibility, photodetectivity, linear dynamic range, and dramatically boosted stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Energy & Fuels
Xinwen Zhang, Lening Shen, Pramod Baral, S. N. Vijayaraghavan, Feng Yan, Xiong Gong, He Wang
Summary: This study demonstrates the manufacturing of perovskite solar cells based on FACs using blade coating followed by vacuum quenching method in an ambient environment, and successfully solves the low efficiency issue of the hole transport material, achieving higher efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Materials Science, Multidisciplinary
Pramod Baral, Xinwen Zhang, Kelsey Garden, Nilave Chakraborty, Lening Shen, Zikun Cao, Xiong Gong, Luisa Whittaker-Brooks, He Wang
Summary: Metal halide perovskites show great potential as solar cell materials due to their exceptional optical and electronic properties. This study presents a method for fabricating perovskite thin films using green solvents and blade-coating techniques under ambient conditions. The resulting films exhibit high power conversion efficiencies and excellent stability, making them a promising candidate for commercial perovskite solar cells.
ORGANIC ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Xinwen Zhang, Chengbin Fei, Lening Shen, Pramod Baral, Sankaranarayanan Nair Vijayaraghavan, Feng Yan, Xiong Gong, He Wang
Summary: Inorganic metal halide perovskite materials exhibit better thermal stability than organic-inorganic hybrid counterparts for solar cells. However, pure cesium lead triiodide suffers phase instability under ambient conditions. Nucleation and crystal growth are crucial steps in fabricating high-quality perovskite films, and their engineering can improve the efficiency and stability of perovskite solar cells. By using dimethylacetamide (DMAc)/DMF as a cosolvent to enhance nucleation and incorporating CsBr in DMAPbI(3)/CsI precursors to slow down crystal growth, the power conversion efficiency of inorganic perovskite devices is improved to 17.67% with enhanced stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Daniel Powell, Zayn Rhodes, Xinwen Zhang, Edwin J. Miller, McKenzie Jonely, Kameron R. Hansen, Chideraa I. Nwachukwu, Andrew G. Roberts, He Wang, Rodrigo Noriega, Shelley D. Minteer, Luisa Whittaker-Brooks
Summary: This study investigates the formation mechanisms of radical anions (R · -) and dianions (D ··· 2-) in self-doped perylene diimides (PDIs), as well as the factors influencing their formation, including dopant architecture, counterion selection, excitation wavelength, and concentration. The findings provide important insights for future photocatalytic applications.
Article
Chemistry, Multidisciplinary
Wei Zhang, Jie Kong, Yingwei Li, Zhuoran Kuang, He Wang, Meng Zhou
Summary: The coherent vibrational dynamics of gold nanoclusters provide important information on the coupling between vibrations and electrons as well as their mechanical properties. The study focuses on atomically precise Au-144(SR)(60) nanoclusters and reveals distinct vibrational modes at 1.5 THz and 2 THz, which help understand the physical properties of gold nanostructures between molecular-like nanoclusters and metallic-state nanoparticles.
Article
Chemistry, Multidisciplinary
Yingwei Li, Michael J. Cowan, Meng Zhou, Tian-Yi Luo, Yongbo Song, He Wang, Nathaniel L. Rosi, Giannis Mpourmpakis, Rongchao Jin
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
Jinfei Dai, Chenjing Zhao, Jie Xu, Hossein Roshan, Hua Dong, Francesco Di Stasio, Fang Yuan, Bo Jiao, Zhaoxin Wu
Summary: In this study, the performance of perovskite nanocrystal light emitting diodes (PNC-LEDs) was enhanced through rational device structure design and the application of high-performance perovskite nanocrystal emitting layers.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Jia-Hua Yeh, Suhendro Purbo Prakoso, Leon Lukhas Santoso, Shi-Ju Chen, Bryan Chiang, Ju-Chieh Cheng, Ru-Ning Zhang, Yu-Cheng Chiu
Summary: This study demonstrates the application of a renewable material called dextrin-SMS in the production of electret filters and transistor memory. Dextrin-SMS material can maintain prolonged electrostatic charges and has a relatively wide memory window, making it suitable for the production of biodegradable face masks and green electronics.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Ahmad Telfah, Qais M. Al-Bataineh, Ahmad A. Ahmad, Rund Abu-Zurayk, Carlos J. Tavares, Johannes Etzkorn, Farzad Foadian
Summary: Polyacrylic acid complexed with polyaniline (PAA/PANI) composite materials have the potential to form organic mixed ion-electron conductive (OMIEC) films, which can be used in optoelectronic and energy storage applications. The composite films are formed through an acid-base reaction, resulting in strong electrostatic interactions and intermolecular hydrogen bonds between PANI and PAA. The separation of PANI-rich domains from PAA-rich matrix in the composite films is observed. The electrical conductivity of the composite films is higher when the content of PANI is 33 wt%, due to the high ionic-electronic coupling at the interface between phase-separated regions.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Min-Chih Hou, Dian Luo, Yu-Ting Huang, Shun-Wei Liu, Chin-Wei Lu, Chih-Hao Chang, Hai-Ching Su
Summary: Light-emitting electrochemical cells (LECs) have great potential for novel emission applications, but their relatively low device efficiency hinders their competitiveness with other emission technologies. A study finds that increasing the concentration of small TiO2 nano-particles in the diffuser film can enhance light extraction and improve the device efficiency of LECs.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Qiaoli Niu, Yao Xu, Jun Yang, Wei Hua, Baoxiang Chai, Zequan Zhang, Yuhui Ma, Wenjin Zeng, Ana Flavia Nogueira, Ruidong Xia
Summary: By introducing CPB as a defect passivation agent in the perovskite precursor solution, the optoelectronic properties of perovskite films can be significantly improved and non-radiative carrier recombination can be effectively suppressed. CPB-modified perovskite solar cells exhibit lower trap-state density and stronger carrier migration capability, leading to enhanced power conversion efficiency and stability.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Hulya Ozturk Dogan, Fatma Yildirim, Zeynep Orhan, Ali Ben Ahmed, Mostefa Benhaliliba, Sakir Aydogan
Summary: In this study, efficient self-powered visible and UV photodetectors based on hybrid organic-inorganic materials were demonstrated. The photodetectors showed excellent UV detecting capability and good photoresponsivity.
ORGANIC ELECTRONICS
(2024)
