EPJ Photovoltaics最新文献_第2页

Impact of the contacting scheme on I-V measurements of metallization-free silicon heterojunction solar cells 接触方式对无金属化硅异质结太阳能电池I-V测量的影响

IF 2.5

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023009

Malte Brinkmann, F. Haase, K. Bothe, K. Bittkau, A. Lambertz, Weiyuan Duan, K. Ding, Hans-Peter Sperlich, A. Waltinger, H. Schulte‐Huxel

{"title":"Impact of the contacting scheme on I-V measurements of metallization-free silicon heterojunction solar cells","authors":"Malte Brinkmann, F. Haase, K. Bothe, K. Bittkau, A. Lambertz, Weiyuan Duan, K. Ding, Hans-Peter Sperlich, A. Waltinger, H. Schulte‐Huxel","doi":"10.1051/epjpv/2023009","DOIUrl":"https://doi.org/10.1051/epjpv/2023009","url":null,"abstract":"I‑V measurements are sensitive to the number and positioning of current and voltage sensing contacts. For busbarless solar cells, measurement setups have been developed using current collection wires and separate voltage sense contacts. Placing the latter at a defined position enables a grid resistance neglecting measurement and thus I‑V characteristics independent from the contacting system. This technique has been developed for solar cells having a finger grid and good conductivity in the direction of the fingers. The optimal position of the sense contact in case of finger-free silicon heterojunction solar cells has not yet been studied. Here, the lateral charge carrier transport occurs in a transparent conductive oxide layer resulting in a higher lateral resistance. We perform finite difference method simulations of HJT solar cells without front metallization to investigate the impact of high lateral resistances on the I-V measurement of solar cells. We show the high sensitivity on the number of used wires for contacting as well as the position of the sense contact for the voltage measurement. Using the simulations, we are able to explain the high difference of up to 7.5% in fill factor measurements of metal free solar cells with varying TCO sheet resistances between two measurement systems using different contacting setups. We propose a method to compensate for the contacting system to achieve a grid-resistance neglecting measurement with both systems allowing a reduction of the FF difference to below 1.5%.","PeriodicalId":42768,"journal":{"name":"EPJ Photovoltaics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57828761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Edge passivation of shingled poly-Si/SiOx passivated contacts solar cells 铺瓦式多晶硅/氧化硅钝化接触太阳能电池的边缘钝化

IF 2.5

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023013

F. Dhainaut, R. Dabadie, B. Martel, T. Desrues, M. Albaric, O. Palais, S. Dubois, S. Harrison

引用次数: 0

Insights into circular material and waste flows from c-Si PV industry c-Si光伏产业的循环材料和废物流洞察

IF 2.5

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2022029

Peter Brailovsky, Kerstin Baumann, M. Held, A. Briem, K. Wambach, Estelle Gervais, Sina Herceg, Boris Mertvoy, S. Nold, J. Rentsch

{"title":"Insights into circular material and waste flows from c-Si PV industry","authors":"Peter Brailovsky, Kerstin Baumann, M. Held, A. Briem, K. Wambach, Estelle Gervais, Sina Herceg, Boris Mertvoy, S. Nold, J. Rentsch","doi":"10.1051/epjpv/2022029","DOIUrl":"https://doi.org/10.1051/epjpv/2022029","url":null,"abstract":"A material flow model for the production of Bifacial Selective Emitter 60-cell p-type Cz PERC (Passivated Emitter and Rear Contacted) glass-backsheet modules with aluminium frame was built. The selected module represents mature technologies in the PV industry and their manufacturing is considered to take place in China in a production cluster with an annual module capacity of 5 GWp. In a first step, data acquisition and validation for wafer, cell and module fabs took place. The data were used to generate the reference system lifecycle inventories (LCI) and extended waste databases for the reference wafers, cells and modules. A set of potential circularity actions, such as the vertical integration of the operations and waste revalorisation strategies, had been proposed and their environmental performance and cost assessed by means of a life cycle assessment (LCA) and a total cost of ownership (TCO). Our results show that 87% of the waste can be reduced and revalorised, this represents a circular flow of raw materials of 18,756 Mg per year from a 5GWp PV module production cluster. Environmental impact reductions of 0.6–2.3% are estimated for different impact categories. We also estimate a cost reduction potential of 2.59% from total module costs.","PeriodicalId":42768,"journal":{"name":"EPJ Photovoltaics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57828170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Laser-based monolithic series interconnection of two-terminal perovskite-CIGSe tandem solar cells: determination of the optimal scribe line properties 基于激光的双端钙钛矿- cigse串联太阳能电池的单片串联互连:最佳划线性能的测定

IF 2.5

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023007

C. Schultz, G. F. Farias Basulto, Nicolas Otto, J. Dagar, A. Bartelt, R. Schlatmann, Eva Unger, B. Stegemann

引用次数: 0

How cool is floating PV? A state-of-the-art review of floating PV's potential gain and computational fluid dynamics modeling to find its root cause 浮动PV有多酷?浮式光伏的潜在增益和计算流体动力学建模的最新进展，以找到其根本原因

IF 2.5

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023015

Gofran Chowdhury, M. Haggag, J. Poortmans

{"title":"How cool is floating PV? A state-of-the-art review of floating PV's potential gain and computational fluid dynamics modeling to find its root cause","authors":"Gofran Chowdhury, M. Haggag, J. Poortmans","doi":"10.1051/epjpv/2023015","DOIUrl":"https://doi.org/10.1051/epjpv/2023015","url":null,"abstract":"The noticeable rise in electricity demand, environmental concerns, and the intense land burden has led to installing PV systems on water bodies to create floating photovoltaic (FPV). Of all market niches, FPV is the one developing the fastest. Along with some of its well-documented merits comes a claim that FPV modules operate at a lower temperature than their ground-mounted counterparts (GPVs). This claim is essential due to the performance loss of PV modules at high operating temperatures. Some literature claims that FPVs are so well-cooled that they maintain around 10% higher efficiencies. However, this cooling is poorly quantified, and the root cause remains unclear in the industry. In this paper, an extensive review of all the latest published literature and white paper advertisements was analyzed. The gains in energy yield coming from different root causes range from 0.11% to 31.29%! This proves the point of lack of clarity of potential gain of FPV. The paper then analyses four possible explanations for this cooling effect and its root causes. The FPV performance parameters are isolated and systematically investigated through physics-based finite element modeling. The impacts of wind velocity, wind direction, water temperature, relative humidity, air temperature, proximity to water, tilt angle, and others are evaluated and explained. The outcomes dictate that FPV is cooled largely through wind convection. But the increase in efficiency is below the anticipated values, ranging from 0.5% to 3%.","PeriodicalId":42768,"journal":{"name":"EPJ Photovoltaics","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57828882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Power dense thermophotovoltaic cells 功率密集的热光伏电池

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023019

Alexander P. Kirk

引用次数: 0

Benchmark of eight commercial solutions for deterministic intra-day solar forecast 确定日内太阳预报的八个商业解决方案的基准

IF 2.5

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023006

J. Lehmann, Christian Koessler, Lina Ruiz Gomez, Stijn Scheerlinck

引用次数: 0

Long-term PV system modelling and degradation using neural networks 使用神经网络的长期光伏系统建模和退化

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023018

Gerardo Guerra, Pau Mercade-Ruiz, Gaetana Anamiati, Lars Landberg

引用次数: 0

Investigation of III-V GaP solar cell on silicon substrate 硅衬底III-V型GaP太阳能电池的研究

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2023020

Soline Boyer-Richard, Fei Fan, Alexandre Beck, Christophe Levallois, Karine Tavernier, Tony Rohel, Rozenn Bernard, Antoine Létoublon, Charles Cornet, Olivier Durand

{"title":"Investigation of III-V GaP solar cell on silicon substrate","authors":"Soline Boyer-Richard, Fei Fan, Alexandre Beck, Christophe Levallois, Karine Tavernier, Tony Rohel, Rozenn Bernard, Antoine Létoublon, Charles Cornet, Olivier Durand","doi":"10.1051/epjpv/2023020","DOIUrl":"https://doi.org/10.1051/epjpv/2023020","url":null,"abstract":"The best solar conversion efficiencies have been reached thanks to multijunction solar based on III-V semiconductors on GaAs or Ge substrates. While displaying high conversion efficiencies, these solar cells suffer from the high cost of such substrates. To benefit from both the low cost and technological maturity of silicon cells, III-V tandem cells on silicon seem a good compromise to overpass the theoretical efficiency limit of the Si single cells. To study the GaP/Si interface effect on the solar cell characteristic, a GaP n-i-p solar cell has been grown on silicon substrate. Two types of electrical contacts configurations have been processed: a top-top configuration in which the current does not see the GaP/Si interface and the top-bottom configuration where the electric current crosses the interface. A comparison of dark I-V, I-V under solar illumination, and EQE measurements on both configurations is performed. The top-bottom contacts configuration shows an EQE a little bit lower than the top-top contact one, likely due to lower carrier diffusion length or recombination at the lower interface. However, the result on the EQE of the top-bottom configuration is encouraging for the future development of the GaP-based/Si tandem solar cells, and any other tandem cell on silicon using GaP as an intermediate selective contact.","PeriodicalId":42768,"journal":{"name":"EPJ Photovoltaics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135448188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Every cell needs a beautiful image: on-the-fly contacting measurements for high-throughput production 每个细胞都需要一个美丽的图像:高通量生产的实时接触测量

IF 2.5

EPJ Photovoltaics Pub Date : 2023-01-01 DOI: 10.1051/epjpv/2022033

Leslie Kurumundayil, K. Ramspeck, S. Rein, M. Demant

引用次数: 1