Article
Chemistry, Physical
Yu-Tien Yu, Shun-Hsiang Yang, Li-Hui Chou, Itaru Osaka, Xiao-Feng Wang, Cheng-Liang Liu
Summary: A scalable ultrasonic spray deposition method was used to fabricate CsPbI2Br-based all-inorganic perovskite thin film for photovoltaic applications. The addition of lead(II) acetate (Pb(Ac)(2)) to the precursor solution, combined with vacuum extraction of the fabricated perovskite film, significantly improved the film quality. The resulting perovskite film showed enhanced crystallinity and achieved a high power conversion efficiency (PCE) of 10.06% with improved thermal stability after aging.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Xingyu Pu, Qi Cao, Jie Su, Jiabao Yang, Tong Wang, Yixin Zhang, Hui Chen, Xilai He, Xingyuan Chen, Xuanhua Li
Summary: An efficient perovskite/TiO2 heterojunction was constructed by adding TiO2 to an antisolvent to form a CsPbI2Br perovskite layer and a top TiO2 electron transport layer. The improved interfacial contact facilitated charge transport and resulted in a superior efficiency of 17.1% for the inverted all-layer-inorganic PSCs. The encapsulated PSCs retained 91% or 92% of their initial efficiency for 1000 h under maximum power point tracking or damp-heat conditions, respectively, while the unencapsulated PSCs maintained 86% initial efficiency even after aging at 200°C for 200 h.
ADVANCED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Xiaoming Zhao, Tianran Liu, Quinn C. Burlingame, Tianjun Liu, Rudolph Holley, Guangming Cheng, Nan Yao, Feng Gao, Yueh-Lin Loo
Summary: By incorporating a 2D capping layer, the stability of the interface in CsPbI3 PSCs can be improved, leading to an increased power conversion efficiency of all-inorganic PSCs. Accelerated aging tests can predict degradation rates and intrinsic lifetimes of PSCs at different temperatures.
Article
Nanoscience & Nanotechnology
Sujit Kumer Shil, Fei Wang, Kingsley O. Egbo, Zhengxun Lai, Ying Wang, Yunpeng Wang, Dongxu Zhao, Sai-Wing Tsang, Johnny C. Ho, Kin Man Yu
Summary: Lead-based halide perovskites have attractive properties for optoelectronic devices, but lead toxicity and poor stability limit their practical use. Recently, there has been great interest in lead-free, environmentally-friendly inorganic halide perovskites. This study successfully synthesized lead-free Cs3Sb2Br9 perovskite microplates using a two-step CVD method, showing potential for high-performance optoelectronic device applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Sawanta S. Mali, Jyoti V. Patil, Julian A. Steele, Mohammad Khaja Nazeeruddin, Jin Hyeok Kim, Chang Kook Hong
Summary: This study presents a monolithic hybrid tandem solar cell with an all-organic blend as the rear subcell, using metal-ion doped all-inorganic perovskite front subcells and a solution-processed ternary organic blend rear subcell. The use of dynamic hot-air deposition technology allows the fabrication and testing of the solar cells entirely in the open air, and passivation and selection layer treatments improve efficiency and reduce open-circuit voltage loss. The solar cells achieved a maximum efficiency of 23.07% and retained over 90% of the initial efficiency after 600 hours of continuous illumination.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yafeng Xu, Jialong Duan, Jian Du, Xiya Yang, Yanyan Duan, Qunwei Tang
Summary: This study successfully fabricated a flexible CsPbBr3 PSC with an efficiency of 5.71% using a heat-resistant conductive muscovite substrate, achieving high mechanical flexibility and providing a new path for increasing efficiency in the future without lowering the crystallization temperature of state-of-the-art materials.
Article
Materials Science, Multidisciplinary
Saad Ullah, Peixin Yang, YuQiao Li, Jiaming Wang, Linlin Liu, Rakeel Mahmood, Shi-E. Yang, Tianyu Xia, Haizhong Guo, Yongsheng Chen
Summary: In this study, a two-step vapor deposition approach was used to fabricate CsPbCl3 films, and the influence of different reaction conditions on the structural, morphological, and optical properties of the films was systematically examined. The optimal reaction conditions resulted in improved crystallinity, morphology, and photoluminescence, providing guidance for high-quality CsPbCl3 and other CsPbX3 perovskite films for future optoelectronic applications.
Review
Chemistry, Multidisciplinary
Helen Hejin Park
Summary: ALD plays a crucial role in the development of PSCs, offering new possibilities for improving efficiency, stability, and scalability through its applications in charge transport layers, passivation layers, and buffer and recombination layers. Future research directions and challenges will also be discussed.
Article
Chemistry, Multidisciplinary
Yoon Ho Lee, Jee Yung Park, Peiran Niu, Hanjun Yang, Dewei Sun, Libai Huang, Jianguo Mei, Letian Dou
Summary: A facile one-step solution process for synthesizing 2D perovskite crystal arrays through meniscus-guided coating on patterned substrates is proposed. This method is further used for the synthesis of lateral heterostructure nanoplate arrays. Six different 2D perovskite nanoplate arrays, including epitaxial heterostructures, are successfully realized. Optical and crystallographic characterizations show the high optical performance and crystallinity of the nanoplates. Moreover, this method is utilized for preparing high-performance 2D perovskite nanoplate photosensor arrays. This strategy can guide the fundamental investigation of optical properties and the development of high-performance optoelectronics of perovskite materials.
Article
Chemistry, Physical
Ming Shi, Ping Fu, Wenming Tian, Haibo Chi, Can Li, Rengui Li
Summary: This study reports the rational design and synthesis of Cs3SbBiI9, which incorporates antimony atoms with a similar electronic structure to bismuth into the host lattice of Cs3Bi2I9, to improve its optoelectronic performance. The Cs3SbBiI9 exhibits a broadened absorption spectrum, enhanced photoluminescence intensity, and increased charge carrier lifetime compared to Cs3Bi2I9. It also demonstrates higher photovoltaic performance in perovskite solar cells. The introduced Sb atoms regulate the interlayer spacing and the micro-octahedral configuration, which correlate well with the improved optoelectronic properties of Cs3SbBiI9. This work is anticipated to benefit the design and fabrication of lead-free perovskite semiconductors for optoelectronic applications.
Article
Chemistry, Physical
Ruqi Chen, Zhiwei Liang, Wenjing Feng, Xubo Hu, Aize Hao
Summary: The all-inorganic CsPbBr3 perovskite thin films exhibit good optoelectronic properties with smooth surface and photoluminescence emission, and the fabricated photodetector shows fast photoresponse speed and short decay time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Ze Yang, Hao Zhang, Zhaohui Fang, Jianhong Yi, Peng Song, Xue Yu, Dacheng Zhou, Jianbei Qiu, Xuhui Xu
Summary: The study introduces an efficient and cost-saving method for mass production of CsPbBr3 quantum dots, maintaining high photoluminescence quantum yield and narrow full width at half maximum. The perovskite achieved a red shift by adjusting the halogen composition, demonstrating improved stability and color gamut for backlighting display applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Dazheng Chen, Yibing He, Gang Fan, Zeyang Zhang, Weidong Zhu, He Xi, Long Zhou, Chunfu Zhang, Jincheng Zhang, Yue Hao
Summary: By adding precursor additives in the two-step aqueous-solution method, the CsPbBr3 film achieved uniform grain size, pure perovskite phase, smooth surface, enhanced light absorption and longer carrier lifetime. The optimized additive of IPA improved the efficiency of CsPbBr3 solar cells from 9.09% to 10.29%, with an ultrahigh fill factor of 85.21%. Moreover, adding PbCl2 into the PbBr2 solution increased the open circuit voltage and improved the stability of the device.
JOURNAL OF MATERIOMICS
(2023)
Review
Materials Science, Multidisciplinary
Chen Dong, Bingjie Xu, Dongmei Liu, Erin G. Moloney, Furui Tan, Gentian Yue, Rong Liu, Dongyang Zhang, Weifeng Zhang, Makhsud I. Saidaminov
Summary: Organic-inorganic hybrid perovskite solar cells show promise as next-generation photovoltaic technology, but face challenges such as thermodynamic instability and constituent migration. C-IPSCs based on cesium lead halide inorganic perovskites and a carbon electrode offer stability, efficiency, and long-term operation, making them the most promising PSC architecture for commercialization.
Article
Energy & Fuels
S. Karthick, H. Hawashin, N. Parou, S. Vedraine, S. Velumani, J. Boucle
Summary: The study investigates the effect of incorporating CuI and BiI3 into perovskite solar cells, finding that doped devices exhibit reduced performance and faster recombination kinetics compared to undoped samples. Fine control of defect states is crucial for achieving better device performance when using such doping strategies.
Article
Chemistry, Multidisciplinary
Yuki Haruta, Shinji Wada, Takumi Ikenoue, Masao Miyake, Tetsuji Hirato
Summary: The sensitivity of X-ray detectors can be significantly improved by forming a columnar grain structure in the photoconductive layer using mist deposition method. The re-dissolution capability of the precursor solution is identified as a key factor promoting grain growth, leading to columnar growth. The mist deposition method is demonstrated to be effective in achieving columnar grain growth in CH3NH3PbBr3 films as well.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Yuya Matamura, Makoto Kimura, Takumi Ikenoue, Masao Miyake, Tetsuji Hirato
Summary: This study reports the fabrication of VO2 thin films with unique orientation through topotactic oxidation and proposes a mechanism for the process. The experimental results demonstrate that the substrate has an influence on the orientation of VO2, and the obtained VO2 film shows a significant change in resistance. This work is important for a better understanding of topotactic oxidation for the fabrication of oxide films with controlled orientations.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Analytical
Shota Higashino, Yoshikazu Takeuchi, Masao Miyake, Takumi Ikenoue, Masakazu Tane, Tetsuji Hirato
Summary: The electrodeposition of Al-W alloy films using hydrated salts as W precursors allows for high alloy content even at high current densities, without negatively affecting the quality or current efficiency of the films. Analysis of the chemical speciation of Al and W ions in the ionic liquids shows differences between the dissolved species derived from hydrated salts and anhydrous salts.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Electrochemistry
Masaki Yamagami, Shota Higashino, Takashi Yamamoto, Takumi Ikenoue, Masao Miyake, Tetsuji Hirato
Summary: In this study, the feasibility of electrodeposition of aluminum films in dry air was examined using two commonly used baths. The results showed that electrodeposition using the AcAm-AlCl3 bath produced uniform aluminum films, while electrodeposition using the EMImCl-AlCl3 bath failed to cover the entire substrate.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Yuki Haruta, Mioko Kawakami, Yuui Nakano, Soumya Kundu, Shinji Wada, Takumi Ikenoue, Masao Miyake, Tetsuji Hirato, Makhsud Saidaminov
Summary: Metal halide perovskites have high X-ray absorption capability and excellent charge carrier transport, making them promising for direct X-ray detection and imaging applications. Single-pixel perovskite X-ray detectors have shown excellent device performance, while the development of multipixel flat-panel detectors (FPDs) for 2D X-ray imaging is challenging due to scalable deposition processes.
CHEMISTRY OF MATERIALS
(2022)
Article
Electrochemistry
Masao Miyake, Takashi Kita, Takumi Ikenoue, Tetsuji Hirato
Summary: This study investigated the barrel plating conditions using specific ionic liquids for the formation of uniform aluminum coatings on steel bolts. By adjusting the composition of the ionic liquid and the rotation speed of the barrel, the coverage and uniformity of the aluminum coatings on the bolts were improved.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Abraha Tadese Gidey, Yuki Haruta, Artur P. Herman, Milosz Grodzicki, Anna M. Melnychenko, Dominika Majchrzak, Somnath Mahato, Ernest Rogowicz, Marcin Syperek, Robert Kudrawiec, Makhsud I. Saidaminov, Ahmed L. Abdelhady
Summary: A surface engineering crystallization technique is reported to improve the surface quality of lead halide perovskite crystals and enhance their optoelectronic properties and device performance.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Yoshiyuki Ueshima, Masakatsu Hasegawa, Naoyoshi Kubota, Yuya Matamura, Eiichiro Matsubara, Kazuaki Seki, Tetsuji Hirato
Summary: In order to challenge the fabrication of highly O2-permeable Ag membranes, nanocrystalline Ag-Cu-Al alloys with densely dispersed Al2O3 particles were prepared via reactive sputtering using Ar-O2 mixed gas. The impact of O2 partial pressure on the thin film structure during sputtering was investigated and it was found that a critical O2 partial pressure was required to achieve a nanocrystalline structure through simultaneous internal oxidation.
