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2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)最新文献

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Modeling the effects of using polycrystalline substrates for low cost III–V photovoltaics 模拟使用多晶衬底对低成本III-V型光伏发电的影响
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7355955
E. McClure, Z. Bittner, M. Slocum, D. Forbes, S. Hubbard
{"title":"Modeling the effects of using polycrystalline substrates for low cost III–V photovoltaics","authors":"E. McClure, Z. Bittner, M. Slocum, D. Forbes, S. Hubbard","doi":"10.1109/PVSC.2015.7355955","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7355955","url":null,"abstract":"Recent interest in growing high efficiency solar cells on polycrystalline “virtual” recrystallized substrates requires an understanding of the impact of substrate quality and growth nucleation characteristics. This work provides a study on the effects of substrate material, roughness, and crystallinity on efficiency of a GaAs solar cell. A variety of devices were grown on both monocrystalline and polycrystalline GaAs and Ge substrates, and the results were used to predict minority carrier diffusion length as a function of crystal grain size, material quality, and nucleation defect densities.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126498243","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: 4
Novel boost-SEPIC type interleaved dc-dc converter for low-voltage bipolar dc microgrid-tied solar pv applications 用于低压双极直流微电网太阳能光伏应用的新型升压- sepic型交错直流变换器
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7356272
P. Prajof, V. Agarwal
{"title":"Novel boost-SEPIC type interleaved dc-dc converter for low-voltage bipolar dc microgrid-tied solar pv applications","authors":"P. Prajof, V. Agarwal","doi":"10.1109/PVSC.2015.7356272","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7356272","url":null,"abstract":"In this paper, a new boost-SEPIC interleaved type dc-dc converter is proposed for a low-voltage bipolar dc microgrid application. The proposed converter is a parallel combination of boost and SEPIC converter with two outputs. It is well-suited for low-voltage-high-current applications in a bipolar dc microgrid environment. The interleaving effect of source inductors ensures low ripple current drawn from PV source. Due to low ripple current from the PV source, the MPPT efficiency is increased. Detailed steady-state analysis and dynamic modeling of the proposed converter are presented. Simulation results are presented to validate the performance of the converter. Open-loop experimental results are presented to validate the working of the proposed converter.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"51 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127996136","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: 19
Electrical and optical characterization of crystalline-si solar cell with down shifting eu-doped silicate phosphors film depending on the coverage of phosphors particles using spin-on film process 下移掺铕硅酸盐荧光粉膜对晶体硅太阳能电池电学和光学特性的影响，取决于荧光粉颗粒的覆盖范围
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7356314
Guo-Chang Yang, W. Ho, C. Yeh, Yu-Tang Shen, Ruei-Siang Sue, C. Hu, Y. Deng
{"title":"Electrical and optical characterization of crystalline-si solar cell with down shifting eu-doped silicate phosphors film depending on the coverage of phosphors particles using spin-on film process","authors":"Guo-Chang Yang, W. Ho, C. Yeh, Yu-Tang Shen, Ruei-Siang Sue, C. Hu, Y. Deng","doi":"10.1109/PVSC.2015.7356314","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7356314","url":null,"abstract":"Electrical and optical performance of crystalline silicon solar cells with down shifting Eu-doped silicate phosphors film using spin-on film technique was experimental demonstrated. The coverage of phosphors particles was controlled using the deposition holding time by spin-on process. Photo-luminescence (PL) and external quantum efficiency (EQE) response of the cells with Eu-doped silicate phosphors are used to examine the effectiveness of the phosphors down shifting. An impressive enhanced in conversion efficiency of 19.7% was obtained when the cell with a 5 wt% Eu-doped silicate phosphors mixing with SiO2 solution for a 5 s deposition holding time.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"101 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125973135","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: 2
Estimating the theoretical limit of the power conversion efficiency of a luminescent solar concentrator device from the perspective of Shockley-Queisser limit 从Shockley-Queisser极限的角度估算发光太阳能聚光器功率转换效率的理论极限
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7356112
Yilin Li, W. Dong
{"title":"Estimating the theoretical limit of the power conversion efficiency of a luminescent solar concentrator device from the perspective of Shockley-Queisser limit","authors":"Yilin Li, W. Dong","doi":"10.1109/PVSC.2015.7356112","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7356112","url":null,"abstract":"A model was developed to estimate the theoretical limit of the power conversion efficiency of a luminescent solar concentrator device from the perspective of Shockley-Queisser limit. The modeling results indicated that the theoretical limit of the power conversion efficiency of a luminescent solar concentrator device is always lower than Shockley-Queisser limit. The types of photon energy loss were also analyzed.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121912156","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
Tests of functional coatings on glass adapted to extreme - arid and maritime - climatic conditions for solar energy systems 太阳能系统用适应极端干旱和海洋气候条件的玻璃功能性涂层试验
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7355604
E. Klimm, L. Ost, B. Spiegelhalter, K. Weiß
{"title":"Tests of functional coatings on glass adapted to extreme - arid and maritime - climatic conditions for solar energy systems","authors":"E. Klimm, L. Ost, B. Spiegelhalter, K. Weiß","doi":"10.1109/PVSC.2015.7355604","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7355604","url":null,"abstract":"Extreme climatic conditions, found at arid or maritime regions, are very demanding for solar energy systems. In this paper we share experiences about the soiling of surfaces, exposed for one and two years at arid and maritime outdoor weathering test sites with different climatic conditions. The regional factors do play an important role for the adhesion of particles on the surfaces. To simulate atmospheric dust deposition and to test functional materials a special Fraunhofer ISE dusting method is applied by our in-house developed test equipment. Thereby a characterization of the soiling properties of surfaces is possible and functional properties come comparable. This characterization of the functional coatings is complemented by spectral measurements and wetting behavior. This new test is the cross link between the design of new materials and the application of PV systems exposed to extreme climates. The determination of the functionality and reliability is the major aim.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115783088","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: 3
Current enhancement of CdTe-based solar cells 目前基于cdte的太阳能电池的改进
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/pvsc.2015.7356442
N. Paudel, Yanfa Yan
{"title":"Current enhancement of CdTe-based solar cells","authors":"N. Paudel, Yanfa Yan","doi":"10.1109/pvsc.2015.7356442","DOIUrl":"https://doi.org/10.1109/pvsc.2015.7356442","url":null,"abstract":"We report on the realization of current enhancement for CdTe-based solar cells grown on commercial SnO2/SnO2:F coated soda-lime glass substrates. We used sputtered CdSe window layer to facilitate the formation of CdSexTe1-x alloys during high temperature CSS CdTe deposition. The reduced band gap leads to current enhancement in the long wavelength region. We optimize the thickness of CdSe to enhance the blue response and current enhancement in the short wavelength region. The application of CdSe window layer leads to lower open-circuit voltage (VOC). We have applied combined CdS/CdSe window layers to maintain both short-circuit current (JSC) and VOC. With optimized synthesis, a small area cell with CdS/CdSe window layer showed an efficiency of 15.1% with a VOC of 830 mV, a short-circuit current of 26.3 mA/cm2 and a fill-factor of 69.1%, measured under an AM1.5 illumination. Further improvement on cell performance is expected when the interfaces are further optimized.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131353608","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
On the reliability of photovoltaic short-circuit current temperature coefficient measurements 光伏短路电流温度系数测量的可靠性研究
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7355842
C. Osterwald, M. Campanelli, G. Kelly, Rafell Williams
{"title":"On the reliability of photovoltaic short-circuit current temperature coefficient measurements","authors":"C. Osterwald, M. Campanelli, G. Kelly, Rafell Williams","doi":"10.1109/PVSC.2015.7355842","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7355842","url":null,"abstract":"The changes in short-circuit current of photovoltaic (PV) cells and modules with temperature are routinely modeled through a single parameter, the temperature coefficient (TC). This parameter is vital for the translation equations used in system sizing, yet in practice is very difficult to measure. In this paper, we discuss these inherent problems and demonstrate how they can introduce unacceptably large errors in PV ratings. A method for quantifying the spectral dependence of TCs is derived, and then used to demonstrate that databases of module parameters commonly contain values that are physically unreasonable. Possible ways to reduce measurement errors are also discussed.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131968744","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: 12
Internal strain analysis of CdTe thin films deposited by pulsed DC magnetron sputtering 脉冲直流磁控溅射沉积CdTe薄膜的内部应变分析
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7356093
P. Kamiński, A. Abbas, C. Chen, S. Yilmaz, F. Bittau, J. Bowers, J. Walls
{"title":"Internal strain analysis of CdTe thin films deposited by pulsed DC magnetron sputtering","authors":"P. Kamiński, A. Abbas, C. Chen, S. Yilmaz, F. Bittau, J. Bowers, J. Walls","doi":"10.1109/PVSC.2015.7356093","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7356093","url":null,"abstract":"Thin film CdTe was deposited by pulsed dc magnetron sputtering. Magnetron sputtering offers significant advantages for the deposition of thin film photovoltaic including low deposition temperatures and excellent coating uniformity. However the films are susceptible to stress due to the relatively high deposition energy. In this study, deposition temperature and argon gas flows have been used to minimize stress in the deposited films. TEM imaging was used to investigate the crystalline structure of the deposited films and XRD was used to measure strain. XRD analysis showed that stress can be minimized by depositing the CdTe thin film at temperatures of approximately 200°C using relatively high argon gas flows of 60 sccm. Moreover, this increase in substrate temperature has the further advantage of promoting larger grain sizes up to 500nm in the deposited films.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130091790","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: 7
High intensity and integrated Suns-Voc characterization of high performance kesterite solar cells 高性能kesterite太阳能电池的高强度和集成sun - voc特性
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7355690
O. Gunawan, T. Gokmen, D. Mitzi
{"title":"High intensity and integrated Suns-Voc characterization of high performance kesterite solar cells","authors":"O. Gunawan, T. Gokmen, D. Mitzi","doi":"10.1109/PVSC.2015.7355690","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7355690","url":null,"abstract":"Kesterite or Cu2ZnSn(Se,S)4 (CZTSSe) is an emerging earth-abundant thin-film solar cell technology with current world record of 12.6% which is still far behind its cousin, the CuInGaSe technology. We investigated Suns-Voc characteristics of our high performance kesterite solar cells using two setups: (1) Low intensity (1 sun) Suns-Voc system integrated to the standard solar simulator using motorized continuous density filter. (2) High intensity (~300 suns) Suns-Voc. The CZTSSe high intensity Suns-Voc curves exhibit bending at high intensity, which reveal several Voc limiting mechanisms that could impact the Voc at 1 sun such as: low bulk conductivity (because of low hole density or low mobility), bulk or interface defects including tail states, and a non-ohmic back contact for low carrier density CZTSSe. The latter problem can be detected by high intensity Suns-Voc with different infra red bandpass filters. Some of these limiting factors contribute to an artificially lower Jsc-Voc diode ideality factor compared to that of standard light J-V. The Suns-Voc techniques developed here is also applicable to other thin film solar cell technologies.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130145480","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
Satellite-to-irradiance modeling - a new version of the SUNY model 卫星辐照度模型——纽约州立大学模型的新版本
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Pub Date : 2015-06-14 DOI: 10.1109/PVSC.2015.7356212
R. Perez, J. Schlemmer, Karl Hemker, S. Kivalov, A. Kankiewicz, C. Gueymard
{"title":"Satellite-to-irradiance modeling - a new version of the SUNY model","authors":"R. Perez, J. Schlemmer, Karl Hemker, S. Kivalov, A. Kankiewicz, C. Gueymard","doi":"10.1109/PVSC.2015.7356212","DOIUrl":"https://doi.org/10.1109/PVSC.2015.7356212","url":null,"abstract":"This article presents and validates the latest version of the SUNY satellite model. In the future this new model will be deployed operationally as part of SolarAnywhere. The new version includes an improved treatment of clear sky, the ingestion of now-casting numerical weather predictions, and a more effective treatment of the model's dynamic range to better represent extreme (clear and overcast) conditions. This new version results in substantial performance improvement across a diversity of climates.","PeriodicalId":427842,"journal":{"name":"2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130422946","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: 26
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