Article
Energy & Fuels
Maximilian Krause, Shih-Chi Yang, Simon Moser, Shiro Nishiwaki, Ayodhya N. Tiwari, Romain Carron
Summary: The photovoltaic conversion efficiency of CuInSe2 solar cells is limited by low fill factor and open-circuit voltage values. This study utilizes small quantities of Ag alloying to overcome these limitations and improve the properties of CuInSe2 absorbers. The addition of Ag leads to enhanced morphology, larger grain sizes, extended carrier lifetimes, and higher net doping densities. It also reduces detrimental defects at the buffer-absorber interface and promotes the formation of a high-crystal-quality chalcopyrite phase. The best solar cell with Ag-alloyed CuInSe2 achieves a power conversion efficiency of 18.7% for low-bandgap energy.
Article
Materials Science, Multidisciplinary
Maria B. Candeias, Tiago V. Fernandes, Bruno P. Falcao, Antonio F. Cunha, Jose M. V. Cunha, Joao Barbosa, Jennifer P. Teixeira, Paulo A. Fernandes, Marco Peres, Katharina Lorenz, Pedro M. P. Salome, Joaquim P. Leitao
Summary: This work presents an experimental study on the effects of proton irradiation on the properties of CIGS solar cells. It is found that the irradiation induces changes in the electronic structure, resulting in a decrease in photoluminescence and power conversion efficiency. A recovery strategy using multiple annealing steps is proposed, which successfully recovers the efficiency of the cells. This work highlights the potential of CIGS technology in space applications.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Physics, Multidisciplinary
Ming Ying, Junjie Wen, Yue Zhao
Summary: In this study, the performance of CISe-based solar cells under various factors was investigated using numerical simulation. Optimal structure parameters were determined and the results provide guidance for the fabrication of high efficiency solar cells.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Energy & Fuels
A. Urbaniak, A. Czudek, A. Eslam, R. Wuerz, M. Igalson
Summary: This work focuses on interpreting defect spectroscopy results in CIGS solar cells and provides a comprehensive analysis of experimental data. It discusses the challenges in interpreting the observed signals and the co-existing physical models in the CIGS community. The main contribution is the introduction of a new model that describes the results of admittance spectroscopy, explaining the characteristic features of the measured signals and their dependence on hole concentration and grain boundary barriers.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Chemistry, Physical
Dan Liu, Yuxiao Guo, Yawei Yang, Jie Liu, Xingtian Yin, Wenxiu Que
Summary: By introducing CuInSe2 quantum dots (QDs) into the perovskite material through a hot injection method with Na2S ligand exchange, a QD-in-perovskite structure was successfully formed. The structure, which modified the trap states, was beneficial for enlarging grain size, improving crystallinity, and absorption performance. The perovskite solar cell based on the MAPbI(3)-CuInSe2 QD hybrid film showed an extended carrier lifetime, improved power conversion efficiency (PCE), and better stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Dan Liu, Yuxiao Guo, Xingtian Yin, Yawei Yang, Wenxiu Que
Summary: Introducing quantum dots through a low-temperature seed-assisted growth method can repair defects in polycrystalline films of halide perovskites, suppressing migration channels inside the grains and improving the device efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yasir Siddique, Kyungnan Son, Tanka Raj Rana, Syed Dildar Haider Naqvi, Pham Minh Hoang, Asmat Ullah, Huyen Tran, Sang Min Lee, Sungjun Hong, Seung Kyu Ahn, Inyoung Jeong, SeJin Ahn
Summary: A breakthrough in the use of N,N-dimethylformamide (DMF) molecular ink has led to the fabrication of highly efficient and low bandgap CuIn(S,Se)(2) (CISSe) solar cells. It has been found that DMF ink can be processed in air under certain optimized conditions, without sacrificing device performance. This opens up new possibilities for commercialization while retaining the benefits of solution-based routes.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Marco A. Ruiz-Preciado, Fabrizio Gota, Paul Fassl, Ihteaz M. Hossain, Roja Singh, Felix Laufer, Fabian Schackmar, Thomas Feeney, Ahmed Farag, Isabel Allegro, Hang Hu, Saba Gharibzadeh, Bahram Abdollahi Nejand, Veronique S. Gevaerts, Marcel Simor, Pieter J. Bolt, Ulrich W. Paetzold
Summary: This study successfully fabricated high-efficiency perovskite/CIS tandem solar cells, showcasing the potential of monolithic two-terminal structure. By optimizing the techniques, a power conversion efficiency approaching 25% was achieved, setting the foundation for future improvements in efficiency.
ACS ENERGY LETTERS
(2022)
Article
Engineering, Electrical & Electronic
M. A. Sulimov, M. N. Sarychev, M. V. Yakushev, J. Marquez-Prieto, I. Forbes, V. Yu. Ivanov, P. R. Edwards, A. V. Mudryi, J. Krustok, R. W. Martin
Summary: Solar cells with the ZnO/CdS/Cu2ZnSnSe4/Mo/glass structure were studied using photoluminescence (PL) before and after irradiation with high energy electrons. The PL spectra showed dominant bands from different layers, and irradiation led to a decrease in intensity without affecting the band tails. The red shift rate of the dominant band increased after irradiation, suggesting the formation of deep non-radiative traps.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Wen Liu, Vikram S. Turkani, Vahid Akhavan, Brian A. Korgel
Summary: The study successfully utilized the microsecond time-scale photonic lift-off (PLO) process to fabricate mechanically flexible photovoltaic devices with a total thickness of less than 20 μm, demonstrating the applicability of PLO technique for processing extremely thin, mechanically flexible electronic and optoelectronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Optics
Gagandeep, Mukhtiyar Singh, Ramesh Kumar, Vinamrita Singh
Summary: The perovskite solar cell structures were optimized by studying the effects of layer thickness, electron affinity, and bandgap. It was found that CuInSe2 nanocrystals act as an efficient inorganic HTL, and defect density is a critical factor affecting cell performance. The optimized power conversion efficiency for solar cells based on CH3NH3PbI3 and CH3NH3SnI3 absorbers were 20.36% and 18.89% respectively.
Article
Chemistry, Multidisciplinary
Jin Gi An, Huyen Tran, Dongryeol Kim, Sang Min Lee, Ahreum Lee, Seung Kyu Ahn, Jun-Sik Cho, Jihye Gwak, Taewan Kim, Inyoung Jeong, Joo Hyung Park
Summary: This study explores the potential and performance of bifacial semitransparent CuInSe2 solar cells and fabricates four-terminal bifacial tandem solar cells. The research finds that the conversion efficiency and power generation density of solar cells can be improved through optimization.
Article
Chemistry, Physical
Oana Cojocaru-Miredin, Elaheh Ghorbani, Mohit Raghuwanshi, Xiaowei Jin, Dipak Pandav, Jens Keutgen, Reinhard Schneider, Dagmar Gerthsen, Karsten Albe, Roland Scheer
Summary: Research has shown that intense sulphurization processes in Cu(In,Ga)Se-2 thin-film solar cells, combined with Ga-grading, can lead to improved electrical properties of the buffer/absorber heterojunction by reducing p-doping and altering the band diagram. This process results in the formation of a S-rich compound at the absorber surface, ultimately offering new possibilities for synthesizing high-performance Cu(In,Ga)(Se,S)(2) solar cells.
Article
Chemistry, Multidisciplinary
Ikhtisham Mehmood, Abdul Hakim Shah, Sayed Ali Khan, Maryam Kiani, Noor Zamin Khan, Aamir Saeed, Ambreen Ayub, Fayaz Khan, Huang Jincheng, Sohail Muhammad, Le Jiang, Li Guijun, Simeon Agathopoulos
Summary: Metal doping, specifically Mg-doped CdS, was found to enhance the photovoltaic performance and stability of CISe QDSSCs. The ex-situ peptization technique was used for QD sensitization, with Mg-CdS passivation layer reducing current leakage and improving overall performance. The fabricated TiO2/CISe/Mg-CdS solar cell exhibited a promising power conversion efficiency of 4.65% under AM 1.5 G illumination.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Applied
Cong Liu, Zhenxiao Pan, Kai Shen, Jianzha Zheng, Xiaoyang Liang, Hongbing Zhu, Fei Guo, Zhiqiang Li, Ruud E. Schropp, Yaohua Mai
Summary: In this study, vertically aligned Sb2Se3 nanorod arrays were grown on CdS substrate, and superstrate nanorod solar cells were constructed. CuInSe2 quantum dots were applied to fill the space between the nanorods, forming an interpenetrating nanocomposite structure. The resulting CuInSe2/Sb2Se3 solar cells exhibited significant enhancements in power conversion efficiency.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Hua-Tai Lu, Chang-Ying Ou, Chung-Hsin Lu
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Correction
Materials Science, Ceramics
Jyun-Jie Wu, Che-Yuan Yang, Jen-Cheng Sung, Chung-Hsin Lu
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2017)
Article
Materials Science, Ceramics
Heng-Yu Liu, Sudipta Som, Jen-Cheng Sung, Chang-Ying Ou, Che-Yuan Yang, Chung-Hsin Lu
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2017)
Article
Materials Science, Ceramics
Anil Kumar Pal, Sudipta Som, Chung-Hsin Lu
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Physical
Yong-Jian Liu, Chang-Ying Ou, Chung-Hsin Lu
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Ceramics
Chung-Hsin Lu, Che-Yuan Yang, Sudipta Som, Subrata Das
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2018)
Article
Materials Science, Multidisciplinary
Subrata Das, Sudipta Som, Che-Yuan Yang, Chung-Hsin Lu
MATERIALS RESEARCH BULLETIN
(2018)
Article
Materials Science, Multidisciplinary
Ming-Ching Chen, Jen-Cheng Sung, Chang-Ying Ou, Sudipta Som, Chung-Hsin Lu
Article
Materials Science, Multidisciplinary
Chung-Hsin Lu, Guan-Lin Chiu, Sudipta Som, Chang-Ying Ou
Article
Multidisciplinary Sciences
Che-Yuan Yang, Sudipta Som, Subrata Das, Chung-Hsin Lu
SCIENTIFIC REPORTS
(2017)
Correction
Multidisciplinary Sciences
Che-Yuan Yang, Sudipta Som, Subrata Das, Chung-Hsin Lu
SCIENTIFIC REPORTS
(2017)
Article
Materials Science, Ceramics
Sudipta Som, Che-Yuan Yang, Chung-Hsin Lu, Subrata Das
CERAMICS INTERNATIONAL
(2019)
Article
Materials Science, Ceramics
Chung-Hsin Lu, Shin-Hom Lin
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2019)
Article
Materials Science, Ceramics
Chung-Hsin Lu, Wen Yuan Li, T. Subburaj, Chang Ying Ou, P. Senthil Kumar
CERAMICS INTERNATIONAL
(2019)
Article
Chemistry, Physical
Sudipta Som, Peng-Hsuan Kuo, Chung-Hsin Lu
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)