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Optical engineering of infrared PbS CQD photovoltaic cells for wireless optical power transfer systems

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Frontiers of Optoelectronics 2023年第2期16卷 103-113页

作者： Mengqiong Zhu Yuanbo Zhang Shuaicheng Lu Zijun Wang Junbing Zhou Wenkai Ma Ruinan Zhu Guanyuan Chen Jianbing Zhang Liang Gao Jiancan Yu Pingqi Gao Jiang Tang School of Materials Shenzhen Campus of Sun Yat-Sen UniversityShenzhen 518107China Wuhan National Laboratory for Optoelectronics(WNLO)and School of Optical and Electronic Information Huazhong University of Science and Technology(HUST)Wuhan 430074China

Infrared photovoltaic cells(IRPCs)have attracted considerable attention for potential applications in wireless optical power transfer(WOPT)*** an efcient fber-integrated WOPT system typically uses a 1550 nm laser beam,it is essential to tune the peak conversion efciency of IRPCs to this ***,IRPCs based on lead sulfde(PbS)colloidal quantum dots(CQDs)with an excitonic peak of 1550 nm exhibit low short circuit current(Jsc)due to insufcient absorption under monochromatic light ***,we propose comprehensive optical engineering to optimize the device structure of IRPCs based on PbS CQDs,for 1550 nm WOPT *** absorption by the device is enhanced by improving the transmittance of tin-doped indium oxide(ITO)in the infrared region and by utilizing the optical resonance efect in the ***,the optimized device exhibited a high short circuit current density of 37.65 mA/cm^(2)under 1 sun(AM 1.5G)solar illumination and 11.91 mA/cm^(2)under 1550 nm illumination 17.3 mW/cm^(2).Furthermore,the champion device achieved a record high power conversion efciency(PCE)of 7.17%under 1 sun illumination and 10.29%under 1550 nm *** PbS CQDs IRPCs under 1550 nm illumination can even light up a liquid crystal display(LCD),demonstrating application prospects in the future.

关键词： Wireless optical power transfer PbS CQDs photovoltaic cells Optical engineering

Intelligent Systems and photovoltaic cells Empowered Topologically by Sudoku Networks

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Computers, Materials & Continua 2023年第2期74卷 4221-4238页

作者： Khalid Hamid Muhammad Waseem Iqbal MUsman Ashraf Akber Abid Gardezi Shafiq Ahmad Mejdal Alqahtani Muhammad Shafiq Department of Computer Science Superior UniversityLahore54000Pakistan Department of Software Engineering Superior UniversityLahore54000Pakistan Department of Computer Science GC Women UniversitySialkot51310Pakistan Department of Computer Science COMSATS University IslamabadIslamabad45550Pakistan Industrial Engineering Department College of EngineeringKing Saud UniversityP.O.Box 800Riyadh11421Saudi Arabia Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

A graph invariant is a number that can be easily and uniquely calculated through a ***,part of mathematical graph invariants has been portrayed and utilized for relationship ***,no reliable appraisal has been embraced to pick,how much these invariants are associated with a network graph in interconnection networks of various fields of computer science,physics,and *** this paper,the study talks about sudoku networks will be networks of fractal nature having some applications in computer science like sudoku puzzle game,intelligent systems,Local area network(LAN)development and parallel processors interconnections,music composition creation,physics like power generation interconnections,photovoltaic(PV)cells and chemistry,synthesis of chemical *** networks are generally utilized in disorder,fractals,recursive groupings,and complex *** outcomes are the normal speculations of currently accessible outcomes for specific classes of such kinds of networks of two unmistakable sorts with two invariants K-banhatti sombor(KBSO)invariants,Irregularity sombor(ISO)index,Contraharmonic-quadratic invariants(CQIs)and dharwad invariants with their reduced *** study solved the Sudoku network used in mentioned systems to improve the performance and find irregularities present in *** calculated outcomes can be utilized for the modeling,scalability,introduction of new architectures of sudoku puzzle games,intelligent systems,PV cells,interconnection networks,chemical compounds,and extremely huge scope in very large-scale integrated circuits(VLSI)of processors.

关键词： Sudoku dharwad KBSO indices CQIs network graph intelligent system photovoltaic cells

I-V,C-V and AC impedance techniques and characterizations of photovoltaic cells

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I-V,C-V and AC impedance techniques and characterizations of...

The Optimization Model and Algorithm Study of photovoltaic cells Installation and Design

第七届中国功能材料及其应用学术会议

作者： John Harper Ametek Advanced Measurement Technology Southwood Business ParkHampshireGU14 0NRUnited Kingdom

Described how measurement techniques can be used to characterize the electrical properties of a solar *** describes how electrical characterization products can be used to evaluate solid-state and liquid electrolyte solar *** techniques such as I-V,C-V and impedance/admittance spectroscopy were shown to yield valuable information regarding the devices under *** software solutions allow end users to quickly combine DC and AC measurements and control complex experiments without the need to develop their own test programs. The software features are further enhanced with the addition of powerful fitting techniques such as regression analysis and equivalent circuit analysis which are use to model the underlying processes of the materials.

关键词： photovoltaic cells solar cell impedance Ⅰ-Ⅴ C-V functional materials

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The Optimization Model and Algorithm Study of Photovoltaic C...

The Spherical q-Linear Diophantine Fuzzy Multiple-Criteria Group Decision-Making Based on Differential Measure

第26届中国控制与决策会议

作者： Ru Qu Ruonan Xu Yuting Bian Yue Liu Northeast Dianli University

ISBN: (纸本)9781479937097

According to the goal that total annual solar photovoltaic power generation in solar house is as large as possible, and unit power generation costs are as small as possible, multi-objective optimization model of installation and design is established;Efficiency- cost sorting algorithm based on heuristic is proposed. Finally, we applied the algorithm to the practical photovoltaic cell installation and design, and obtained the reasonable laying scheme and inverter options of photovoltaic cell components connect.

关键词： photovoltaic cells Solar House Multi-Objective Programming Model Efficiency–Cost of Sorting Algorithm

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Computer Modeling in Engineering & Sciences 2024年第2期138卷 1925-1950页

作者： Huzaira Razzaque Shahzaib Ashraf Muhammad Naeem Yu-Ming Chu Institute of Mathematics Khwaja Fareed University of Engineering&Information TechnologyRahim Yar Khan64200Pakistan Department of Mathematics Deanship of Applied SciencesUmm Al-Qura UniversityMeccaSaudi Arabia Department of Mathematics Huzhou UniversityHuzhou313000China

Spherical q-linearDiophantine fuzzy sets(Sq-LDFSs)provedmore effective for handling uncertainty and vagueness in multi-criteria decision-making(MADM).It does not only cover the data in two variable parameters but is also beneficial for three parametric *** Pythagorean fuzzy sets,the difference is calculated only between two parameters(membership and non-membership).According to human thoughts,fuzzy data can be found in three parameters(membership uncertainty,and non-membership).So,to make a compromise decision,comparing Sq-LDFSs is *** measures of different fuzzy sets do,however,can have several flaws that can lead to counterintuitive *** instance,they treat any increase or decrease in the membership degree as the same as the non-membership degree because the uncertainty does not change,even though each parameter has a different *** the Sq-LDFSs comparison,this research develops the differentialmeasure(DFM).Themain goal of the DFM is to cover the unfair arguments that come from treating different types of FSs opposing criteria *** to their relative positions in the attribute space and the similarity of their membership and non-membership degrees,two Sq-LDFSs formthis preference connectionwhen the uncertainty remains same in both *** to the degree of superiority or inferiority,two Sq-LDFSs are shown as identical,equivalent,superior,or inferior over one *** suggested DFM’s fundamental characteristics are *** on the newly developed DFM,a unique approach tomultiple criterion group decision-making is *** suggestedmethod verifies the novel way of calculating the expert weights for Sq-LDFSS as in *** proposed technique in three parameters is applied to evaluate solid-state drives and choose the optimum photovoltaic cell in two applications by taking uncertainty parameter *** method’s applicability and validity shown by the findings are contrasted with those obtained using various

关键词： Multi-criteria group decision-making spherical q-linear Diophantine fuzzy sets differencemeasures photovoltaic cells medical diagnosis

Systematic Review on Critical Factors and Their Optimization for Solar Cell Performance Enhancement

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Journal of Harbin Institute of Technology(New Series) 2024年第4期31卷 85-98页

作者： Nidhi Shukla Satish Kumar Department of Physics Mansarovar Global UniversitySehore 466001India

Solar cells and other renewable energy sources are crucial in today's world where sustainability and environmental consciousness is at *** of this,creating the optimal capacity is a fair aim for the operators of such *** transformation of solar energy into either electricity by means of photovoltaics or into useable fuel by means of photo electrochemical cells remained a primary objective for research organizations and development *** this piece,we will take a look back at the history of solar cells and examine their progression through the *** significant aspects which have an impact on the solar cells' performance are also *** article provides a comprehensive and in-depth overview of the important aspects that affect the solar cells' performance,as well as a discussion of the application of bio-inspired optimization algorithms to improve the parameters of solar *** critical factors and their optimization for solar cell performance enhancement is *** helps identify key performance factors,understand limitations,and challenges,and identify effective optimization *** evaluating trade-offs and synergies,it guides future research and informs industrial applications,leading to more efficient and sustainable solar cell technologies.

关键词： solar energy photovoltaic cells temperature irradiance design optimization

Developments of High-Efficiency Flexible Cu（In,Ga）Se2 Thin Film Solar cells on a Polyimide Sheet by Sodium Incorporation

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Chinese Physics Letters 2014年第6期31卷 228-231页

作者：张力刘芳芳李凤岩何青李长健李宝璋朱红兵 Tianjin Key Laboratory for Photoelectronic Thin Film Devices and Technology Nankai University Tianjin 300071 College of Physics Science and Technology Hebei University Baoding 071002

We present the fabrication of flexible Cu（In,Ga）Se2 （CIGS） solar cells on a polyimide （PI） sheet with and without Na incorporation. A sodium element is incorporated into the CIGS absorber by using a NaF precursor after Mo back contact deposition. X-ray diffraction patterns show that the （112） preferred orientation of the as-grown GIGS films is decreased by Na incorporation. The secondary phase of （Inx,Gal-x）zSe3 is observed for the CIGS films with Na. There is no significant difference in the grain size with and without Na incorporation from surface and cross-sectional SEM images. Additionally, the increase of carrier concentration and decrease of resistivity of CIGS absorber are induced by Na doping. Finally, the flexible CIGS solar cells on PI sheets with efficiency close to 11%, containing Na, are achieved. The improvement of cell efficiency can be attributed to the modified electrical properties of the CIGS film by Na incorporation.

关键词： photovoltaic cells SOLAR energy RENEWABLE energy sources EFFECT of radiation on polyimide films POLYIMIDES ELECTRIC properties

A Simple Interconnection Layer for Tandem Organic Solar cells with Improved Efficiency and Fill Factor

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Chinese Physics Letters 2014年第6期31卷 246-249页

作者：郑克宁杨利营曹焕奇秦文静印寿根 Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education) and School of Materials Science and Engineering fianjin University of Technology Xianjin 300384 Tianjin Key Laboratory for Photoelectric Materials and Devices Tianjin 300384

We demonstrate a simple interconnection layer （ICL） that can be employed in tandem organic solar cells. An ICL with an optimized structure of Ca/Au/MoO3 is used between two sub cells composed of identical regioregularpoly（3-hexylthiophen）（P3HT）：[6,6]-phenyl C61-butyric acid methylester （PCBM） photoactive layers. Power conversion efficiency （PCE） of 3.24% and fill factor （FF） of 68.0% are achieved with such an ICL under simulated sunlight （1 O0 m W. cm- 2 ）. Compared with the best values of devices with ICLs of Ca/Al/MoOa, PCE is improved by 68.9% and FF is improved by 15.5%. The improved performances are attributed to the optical and electrical balances in both sub cells. The presented ICL extracts free charges efficiently from both sub cells thereby suppressing the exaction recombination in each sub cell.

关键词： photovoltaic cells SOLAR energy RENEWABLE energy sources SOLAR cells METHYLESTERASES PHYSICAL & theoretical chemistry

Performance enhancement of partially shaded solar PV array using novel shade dispersion technique

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Frontiers in Energy 2016年第2期10卷 227-239页

作者： Namani RAKESH T. Venkata MADHAVARAM Department of Electrical and Electronics Engineering Kakatiya Instituteof Technology and Science Warangal 506002 India

Solar photo voltaic array （SPVA） generates a smaller amount of power than the standard rating of the panel due to the partial shading effect. Since the modules of the arrays receive different solar irradiations, the P-V characteristics ofphotovoltaic （PV） arrays contain multiple peaks or local peaks. This paper presents an innovative method （magic square） in order to increase the generated power by configuring the modules of a shaded photo- voltaic array. In this approach, the physical location of the modules in the total cross tied （TCT） connected in the solar PV array is rearranged based on the magic square arrangement pattern. This connection is done without altering any electrical configurations of the modules in the PV array. This method can distribute the shading effect over the entire PV array, without concentrating on any row of modules and can achieve global peaks. For different types of shading patterns, the output power of the solar PV array with the proposed magic square configuration is compared with the traditional configurations and the performance is calculated. This paper presents a new reconfiguration technique for solar PV arrays, which increases the PV power under different shading conditions. The proposed technique facilitates the distribution of the effect of shading over the entire array, thereby, reducing the mismatch losses caused by partial shading. The theoretical calculations are tested through simulations in Matlab/ Simulink to validate the results. A comparison of power loss for different types of topologies under different types of shading patterns for a 4 × 4 array is also explained.

关键词： photovoltaic cells mismatch loss shading patterns partial shading magic square power enhancement global peaks and total cross tied (TCT)