检索结果-南通市图书馆

Structural modulation and assembling of metal halide perovskites for solar cells and light-emitting diodes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

InfoMat 2021年第11期3卷 1218-1250页

作者： Xixia Liu Zhaofu Zhang Fen Lin Yuanhang Cheng Department of Materials Science and Engineering National University of SingaporeSingapore Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijingChina Department of Engineering University of CambridgeCambridgeUK solar Energy Research Institute of Singapore National University of SingaporeSingapore

Metal halide perovskites possess appealing optoelectronic properties and have been widely applied for solar energy harvesting and light *** perovskite solar cells(PeSCs)and perovskite light-emitting diodes(PeLEDs)have been developed rapidly in recent years,there are still no universal rules for the selection of perovskites to achieve high-performance optoelectronic *** this review,the working mechanisms of PeSCs and PeLEDs are first demonstrated with the discussion on the factors which determine the device *** then examine the optoelectronic properties of perovskites with structures modulated from 3D,2D,1D to 0D,and analyze the corresponding structure-property relationships in terms of photo-electric and electric-photo conversion *** on the unique optoelectronic properties of structurally modulated perovskites,we put forward the concept of structural assembling engineering that integrate the merits of different types of perovskites within one matrix and elaborate their excellent properties for applications of both PeSCs and ***,we discuss the potential challenges and provide our perspectives on the structural assembling engineering of perovskites for future optoelectronic applications.

关键词： light-emitting diodes low-dimensional perovskites metal halide perovskites solar cells structural assembling structure modulation

Inhibiting octahedral tilting for stable CsPbI_(2)Br solar cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

InfoMat 2022年第1期4卷 155-162页

作者： Aili Wang Jianwei Wang Xiaobin Niu Chuantian Zuo Feng Hao Liming Ding School of Materials and Energy University of Electronic Science and Technology of ChinaChengduChina Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijingChina

The intrinsic phase instability of CsPbI_(2)Br perovskite hinders its development and application in solar ***,we adopt 1-butyl-3-methylimidazolium hexafluorophosphate(BMIMPF6),a hydrophobic ionic liquid(IL),to improve the phase stability of CsPbI_(2)*** functional theory calculation reveals that the formation energy of CsPbI_(2)Br with BMIMPF6 is reduced,thereby restraining the[PbX_(6)]^(4-) octahedral *** reduced structural distortion and relaxed lattice strain result in improved phase stability of CsPbI_(2)*** addition,the interfacial dipole moment increases after introducing BMIMPF6,which facilitates the charge ***,the CsPbI_(2)Br solar cells with BMIMPF6 deliver a power conversion efficiency(PCE)of 16.2%along with excellent *** unencapsulated devices with BMIMPF6 maintain 98.9%,88.6%,and 99.5%of the initial PCEs after 1200 h storage in N_(2),1000 h storage in air(30%relative humidity),and 200 thermal cycles(25–100℃),respectively.

关键词： CsPbI_(2)Br perovskite octahedral tilting phase stability solar cells thermal cycle

Atomic layer deposition enabling higher efficiency solar cells:A review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Materials Science 2020年第3期2卷 204-226页

作者： MdAnower Hossain Kean Thong Khoo Xin Cui Geedhika K Poduval Tian Zhang Xiang Li Wei Min Li Bram Hoex School of Photovoltaic and Renewable Energy Engineering University of New South WalesNSW2052Australia Jiangsu Leadmicro Nano-Equipment Technology Ltd. WuxiJiangsu214028PR China

Atomic layer deposition(ALD)can synthesise materials with atomic-scale *** ability to tune the material composition,film thickness with excellent conformality,allow low-temperature processing,and in-situ real-time monitoring makes this technique very appealing for a wide range of *** this review,we focus on the application of ALD layers in a wide range of solar *** focus on industrial silicon,thin film,organic and quantum dot solar *** is shown that the merits of ALD have already been exploited in a wide range of solar cells at the lab scale and that ALD is already applied in high-volume manufacturing of silicon solar cells.

关键词： Atomic layer deposition Transition metal oxides solar cells Contact resistivity Surface passivation Carrier selectivity

Modeling and implementation of tandem polymer solar cells using wide-bandgap front cells

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2020年第1期2卷 131-142页

作者： Seo-Jin Ko Hyosung Choi Quoc Viet Hoang Chang Eun Song Pierre-Olivier Morin Jungwoo Heo Mario Leclerc Sung Cheol Yoon Han Young Woo Won Suk Shin Bright Walker Jin Young Kim Division of Advanced Materials Korea Research Institute of Chemical Technology(KRICT)DaejeonSouth Korea Department of Chemistry and Research Institute for Natural Sciences Hanyang UniversitySeoulSouth Korea Vietnam Certification Centre Directorate for StandardsMetrology and Quality(STAMEQ)HanoiVietnam Department of Chemistry Laval UniversityQuebec CityCanada Department of Energy Engineering Ulsan National Institute of Science and Technology(UNIST)UlsanSouth Korea Department of Chemistry Korea UniversitySeoulSouth Korea Department of Chemistry Kyung Hee UniversitySeoulSouth Korea

Tandem device architectures offer a route to greatly increase the maximum possible power conversion efficiencies(PCEs)of polymer solar cells,however,the complexity of tandem cell device fabrication(such as selecting bandgaps of the front and back cells,current matching,thickness,and recombination layer optimization)often result in lower PCEs than are observed in single-junction *** this study,we analyze the influence of front cell and back cell bandgaps and use transfer matrix modeling to rationally design and optimize effective tandem solar cell structures before actual device *** approach allows us to estimate tandem device parameters based on known absorption coefficients and open-circuit voltages of different active layer materials and design devices without wasting valuable time and *** this approach,we have investigated a series of wide bandgap,high voltage photovoltaic polymers as front cells in tandem devices with PTB7-Th as a back *** this way,we have been able to demonstrate tandem devices with PCE of up to 12.8%with minimal consumption of valuable photoactive materials in tandem device *** value represents one of the highest PCE values to date for fullerene-based tandem solar cells.

关键词： polymer solar cells solar cells tandem solar cells

Effective additive for enhancing the performance of Sb_(2)S_(3) planar thin film solar cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materiomics 2021年第5期7卷 1074-1082页

作者： Hui Zhou Jian Han Xingyu Pu Xuanhua Li State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’an710072China Northwestern Polytechnical University-Queen Marry University of London(NPU-QMUL)Joint Research Institute of Advanced Materials and Structures(JRI-AMAS)127 West Youyi RoadXi’anXi’an710072China

Sb_(2)S_(3) is a promising photovoltaic absorber with appropriate bandgap,excellent light absorption coefficient and great ***,the power conversion efficiency(PCE)of Sb_(2)S_(3) planar thin film solar cells is unsatisfactory for further commercial application due to low crystallinity and high resistivity of Sb_(2)S_(3) ***,we introduce an additive of 4-Chloro-3-nitrobenzenesulfonyl Chloride(CSCl)to alleviate these *** CSCl molecular contains two terminal Cl with lone pair electrons,which have the interaction with Sb ***,the Sb_(2)S_(3) film with enhanced crystallization and low trap states has been obtained and the resistivity is also ***,CSCl additive raises the Fermi level of the Sb_(2)S_(3) film,thereby enhancing the transport of electron from Sb_(2)S_(3) to TiO_(2).Consequently,the optimal PCE of Sb_(2)S_(3) solar cells is raised from 4.20%(control device)to 5.84%.Our research demonstrates a novel additive to enhance the photoelectric performance of Sb_(2)S_(3) solar cells.

关键词： Sb_(2)S_(3) solar cells Additive engineering Carrier transport High performance

Improved Ag-Si interface performance for Si solar cells using a novel Te-based glass and recrystallization process of Ag

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2021年第1期40卷 84-89页

作者： Xin-Xin Pi Xiu-Hua Cao Ji-Shi Chen Le Zhang Zhen-Xiao Fu Li-Xi Wang Qi-Tu Zhang College of Materials Science and Engineering Nanjing Tech UniversityNanjing 210009China Technology Center Guangdong Fenghua Advanced Technology Company LimitedZhaoqing 526000China

In order to prove that the Te-based glass frit could be applied to Ag pastes to fabricate Ag electrode and elucidate the reactions among Ag,the frit,and the Si wafer,the Te-based glass and Ag pastes with different contents of glass frit(0 wt%,1 wt%,3 wt%,5 wt%,and 7 wt%)were *** microstructures of Ag electrodes and the phase analysis of interface between Ag electrodes and the Si wafer were investigated using scanning electron microscopy(SEM)coupled with energy-dispersive X-ray spectroscopy(EDX)and X-ray diffraction(XRD).When the content of glass frit is 3 wt%,the Ag electrode has good adhesion with Si ***’s more,Ag crystallites and metallic Te could be found on the Si *** results suggest that the TeO_(2) in the glass frit could react with SiNx anti-reflecting coating(ARC)and Si to serve as a medium for forming Ag crystallites.

关键词： solar cells Ag electrode Silver paste Tellurite glass Ag crystallites

Comprehensive study of efficient dye-sensitized solar cells based on the binary ionic liquid electrolyte by modifying with additives and iodine

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2017年第4期13卷 263-267页

作者： MO Ao-qiang CAO Da-peng WANG Wu-yang LI Xue-yan MI Bao-xiu GAO Zhi-qiang LIANG Zhong-cheng School of Optoelectronic Engineering Nanjing University of Posts ＆ Telecommunications Nanjing 210023 China School of Material Science and Engineering Nanjing University of Posts ＆ Telecommunications Nanjing 210023 China ZTE Nanjing Branch Nanjing 210023 China National Synergetic Innovation Center for Advanced Materials Nanjing University of Posts＆Telecommunications Nanjing 210023 China

The photovoltaic performance of dye-sensitized solar cells （DSSCs） is enhanced by modifying the binary room tem- perature ionic liquid （RTIL） electrolyte with additives and iodine. The average photoelectric conversion efficiency （PCE） of 6.39% is achieved. Through electrochemical impedance spectroscopy （EIS）, cyclic voltammetry scans and incident photon-to-current conversion efficiency （1PCE） data, the working principles are analyzed. The enhancement is mainly attributed to the improvement of short circuit current which is caused by the reduction of overall internal resistance of the devices. Durability tests are measured at room temperature, and the long-term stability performance can be maintained.

关键词： Bins Conversion efficiency Cyclic voltammetry Durability Efficiency Electrochemical impedance spectroscopy Electrolytes Iodine Ionic liquids Photoelectricity solar cells solar power generation

SnO_2 nanosheet as a photoanode interfacial layer for dyesensitized solar cells

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2011年第5期7卷 321-324页

作者：蔡锋石王菁袁志好段月琴 Nanomaterial & Nanotechnology Research Center Tianjin University of Technology Tianjin Key Laboratory for Photoelectric Materials and Devices Tianjin University of Technology Key Laboratory of Display Materials and Photoelectric Devices Ministry of Education of China Tianjin University of Technology

SnO2 nanosheet films about 200 nm in thickness are successfully fabricated on fluorine-doped tin oxide （FTO） glass by a facile solution-grown approach. The prepared SnO2 nanosheet film is appfied as an interfacial layer between the nanocrystalline TiO2 film and the FTO substrate in dye-sensitized solar cells （DSCs）. Experimental results show that the introduction of a SnO2 nanosheet film not only suppresses the electron back-transport reaction at the electrolyte/FTO interface but also provides an efficient electron transition channel along the SnO2 nanosheets, and as a result, increasing the open circuit voltage and short current density, and finally improving the conversion efficiency for the DSCs from 3.89% to 4.62%.

关键词： Conversion efficiency Electron transitions Fluorine Interfaces (materials) Nanocomposites Open circuit voltage Oxide films Photoelectrochemical cells solar cells Tin Tin oxides Titanium dioxide

Theoretical simulation of performances in CIGS thin-film solar cells with cadmiumfree buffer layer

在线全文

学校读者我要写书评

暂无评论

Journal of Semiconductors 2017年第8期38卷 49-54页

作者： Kang Luo Yulin Sun Liyu Zhou Fang Wang Fang Wu College of Information Science and Technology Nanjing Forestry University School of Science Nanjing Forestry University

Copper indium gallium selenium （CIGS） thin film solar cells have become one of the hottest topics in solar energy due to their high photoelectric transformation efficiency. To real applications, CIGS thin film is covered by the buffer layer and absorption layer. Traditionally, cadmium sulfide （CdS） is inserted into the middle of the window layer （ZnO） and absorption layer （CIGS） as a buffer layer. However, the application of the GIGS/CdS thin film solar cells has been limited because of the environmental pollution resulting from the toxic cadmium atom. Although zinc sulfide （ZnS） has been proposed to be one of the candidates, the performance of such battery cells has not been investigated. Here, in this paper, we systematically study the possibility of using zinc sulfide （ZnS） as a buffer layer. By including the effects of thickness, concentration of a buffer layer, intrinsic layer and the absorbing layer, we find that photoelectric transformation efficiency of ZnO/ZnS（n）/CIGS（i）/CIGS（p） solar cell is about 17.22%, which is qualified as a commercial solar cell. Moreover, we also find that the open-circuit voltage is -0.60 V, the short-circuit current is -36.99 mA/cm2 and the filled factor is -77.44%. Therefore, our results suggest that zinc sulfide may be the potential candidate of CdS as a buffer layer.

关键词： solar cells hetero junction structure cadmium-free buffer layer