Article
Chemistry, Physical
Mrinal K. Sikdar, Gurupada Ghorai, Tapas R. Senapati, Pratap K. Sahoo
Summary: We investigated the impact of europium doping on the optical properties and electrical conductivity of hydrothermally grown ZnO nanorods. Europium doping widened the optical bandgap up to 0.8% due to the Burstein-Moss effect, and bandgap renormalization was observed at higher concentrations. Temperature-dependent resistivity measurements showed that the electrical conductivity of individual nanorods is a combination of thermally activated and nearest-neighbor hopping conduction processes at high and low temperatures, respectively. We successfully demonstrated that the modulation of carrier concentration in the defect D and D- bands can adjust both the bandgap and electron transport in Eu-doped ZnO nanorods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Huan Ling, Jianchang Wu, Fengyu Su, Yanqing Tian, Yan Jun Liu
Summary: A module of smart perovskite solar cell-powered all-in-one gel ECDs was reported, which can swiftly modulate their transmittance in visible-infrared regions and regulate photo energy flow in real time according to the surrounding light intensity. The ECD showed large optical contrast, excellent coloration efficiency, and outstanding stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Ayesha Ahmed Sumra, Muhammad Aadil, Syeda Rabia Ejaz, Saima Anjum, Tahira Saleem, Maryam Zain, Ibrahim A. Alsafari
Summary: In this study, a two-dimensional nanoarchitecture of ZnO was successfully fabricated by reducing zinc nitrate precursor using plant extract. The synthesized ZnO sample was characterized using various techniques, and its photocatalytic and antibacterial properties were evaluated. The results demonstrated that the ZnO nanoarchitecture exhibited excellent photo-mineralization and antibacterial characteristics.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Ming Yuan, Si Liu, Hong Li, Yifeng Gao, Shui Yu, Yaming Yu, Lingyi Meng, Wen Liu, Jiaoxia Zhang, Peng Gao
Summary: Solar cells are renewable green energy sources that can address environmental pollution and the scarcity of fossil fuels, making them of great interest to scientists. The use of surface plasmon resonance to enhance solar device performance is a promising concept. In this study, gold nanorods were introduced into the perovskite active layer to form composites, resulting in improved short circuit current density, filling factor, and power conversion efficiency. The plasmon resonance effect enhances the light-harvesting ability of the perovskite layer, leading to increased carrier formation and reduced carrier recombination.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Chandani Dubey, Deepak Kumar Jarwal, Hemant Kumar, Yogesh Kumar, Kavicharan Mummaneni, Gopal Rawat
Summary: This article proposes a design for a novel highly efficient ZnO nanorods and lanthanide-doped perovskite solar cell, and demonstrates its advantages through numerical simulation and performance optimization. The doping of lanthanide ions into the absorber layer successfully enhances the photovoltaic performance of the solar cell.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Energy & Fuels
Shubham Bhatt, Raghvendra Shukla, Chetan Pathak, Saurabh Kumar Pandey
Summary: In this study, an identical section of a core-shell ZnO Nanorod based lead-free perovskite solar cell was investigated for optimized device performance, resulting in high power conversion efficiency. Various factors affecting the solar cell's performance were rigorously analyzed, leading to improved parameters and increased efficiency.
Article
Physics, Condensed Matter
Intekhab Alam, Rahat Mollick, Md Ali Ashraf
Summary: This study simulated a non-toxic, lead-free perovskite solar cell and identified key factors such as optimum absorber thickness, electron affinities, doping levels, and back contact work function. These results provide important guidance for fabricating environmentally friendly photovoltaic devices.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Nanoscience & Nanotechnology
Ruturaj P. Patil, Mahadeo A. Mahadik, Weon-Sik Chae, Sun Hee Choi, Jum Suk Jang
Summary: Solar energy, as the most promising and efficient environmentally-friendly energy source, has the potential to meet global demand due to its non-polluting nature. A porous Zn1-x Cd (x) Se/ZnO nanorod heterojunction was synthesized by hydrothermal and low-temperature solvothermal methods. The material showed enhanced photoelectrochemical properties with high photocurrent density and hydrogen evolution rate, attributed to effective light absorption and prolonged recombination lifetime.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Zhaojun Su, Dacheng Xu, Qing Ma, Kun Gao, Cheng Zhang, Chunfang Xing, Shibo Wang, Wei Shi, Xinyu Wang, Kun Li, Jingshu Hui, Xinbo Yang
Summary: This study reports an atomic layer deposited ZnO-SnO2 bilayer electron transport layer (ETL) for wide-bandgap mixed-halide perovskite solar cells (PSCs). The bilayer exhibits high uniformity and conformality over a large area. It shows a matched band alignment with wide-bandgap perovskite, resulting in efficient electron extraction and transport, and achieves a champion power conversion efficiency of 18.1% with an ultrahigh open-circuit voltage (V-oc) of 1.233 V.
Article
Multidisciplinary Sciences
Zeyu Zhang, Qingde Sun, Yue Lu, Feng Lu, Xulin Mu, Su-Huai Wei, Manling Sui
Summary: The authors report hydrogenated lead-free inorganic perovskite solar cells with enhanced power conversion efficiency. By using a hydrogenation method, the bandgap of Cs2AgBiBr6 films could be tunable from 2.18 eV to 1.64 eV, resulting in improved photoelectric conversion efficiency of the solar cells.
NATURE COMMUNICATIONS
(2022)
Article
Energy & Fuels
Bilel Chouchen, Frederique Ducroquet, Samia Nasr, Abdullah Y. A. Alzahrani, Ali T. Hajjiah, Mohamed Hichem Gazzah
Summary: InxGa1-xN/GaN solar cells show optimized efficiency at high temperatures by balancing In composition and working temperature, with the need to reduce indium content as temperature rises to limit carrier concentration impact, while the band offsets become less limiting and thermionic transport probability increases with higher temperature.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Multidisciplinary
Krishanu Dey, Bart Roose, Samuel D. Stranks
Summary: Multijunction perovskite solar cells have gained significant attention recently, especially in the realm of low-bandgap perovskite materials. However, there is still much room for improvement in understanding the key properties of these materials, with intrinsic doping serving as a unique influencing factor.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Dong-Jin Yun, Hyemin Ra, Jung-Min Kim, Seongho Jeon, Sung Hoon Park, Minsu Seol, Seunghyup Lee
Summary: ZnO nanorod arrays offer high surface area, but face challenges in charge collecting efficiency. This study synthesizes patterned ZnO nanorod arrays using a hydrothermal method and deposits an Ru metal layer using radio frequency sputtering, revealing the combination of Ru metal and ZnO nanorod arrays as a lower cost alternative with great potential.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Nour Attallah Issa, Chi Chin Yap, Sin Tee Tan, Kai Jeat Hong, Kam Sheng Lau, Farah Liyana Khairulaman, Chin Hua Chia, Mohammad Hafizuddin Hj Jumali, Kok-Keong Chong
Summary: Carbon quantum dots have been used to improve the performance of organic solar cells, and their introduction leads to enhanced photovoltaic efficiency and charge transport.
Article
Materials Science, Multidisciplinary
Shang Shiguang, Guo Xiongxiong, Ren Wei, Ju Xiaobao, Liu Youyao
Summary: Heterojunction solar cells (HSCs) with p-Si/n-ZnO nanorod arrays were synthesized using a low temperature hydrothermal method. The optimized HSCs exhibited improved photovoltaic properties compared to thin film ZnO solar cells.
RARE METAL MATERIALS AND ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.