共查询到19条相似文献,搜索用时 703 毫秒
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Honeycomb-structured solar cell is proposed for photovoltaic building block applications. Honeycomb-like substrates were prepared either by a conventional semiconductor processing or by a low cost wet-chemical method, and amorphous Si thin film solar cells were fabricated on these substrates. We have demonstrated one of the essential requirements for building block application, which is the low sensitivity of the light incidence angles on the power conversion efficiency; and we have identified the critical processing issues through the experimental study using various thin film deposition methods. This honeycomb-structured solar cell is a promising candidate for the future photovoltaic building block applications enabling the inherent high strength-to-weight ratio and higher efficiency at an oblique light incidence. 相似文献
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G.F. Zheng Z. Shi R. Bergmann X. Dai S. Robinson A. Wang J. Kurianski M.A. Green 《Solar Energy Materials & Solar Cells》1994,32(2)
We report on the fabrication of thin film Si solar cells on glass by substrate thinning. We use thin Si films grown on thick Si substrates by either liquid phase epitaxy or chemical vapour deposition. A novel solar cell device fabrication process is then applied to the structure, in which the Si is thinned down to 20–30 μm leaving the grown Si film as the majority of the active material of the structure. We obtain a conversion efficiency of 14.4% for such a thin film Si solar cell on glass. 相似文献
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对非晶硅薄膜太阳能电池的历史和现状进行了总结,指出了目前非晶硅薄膜太阳能电池存在的主要问题是转换效率低和严重的光致衰减效应,对解决这些问题的一些技术进行了探讨,认为非晶硅薄膜太阳能电池有很大的发展潜力,将与晶体硅和其他新兴太阳能电池三分天下。 相似文献
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A simple new method suitable to grow large crystalline grain CdTe thin films on glass substrates has been developed. CdTe films which exhibit a grain size larger than 20 µm have been obtained. The films are p-type with a resistivity of about 100 Ωcm. Backwall CdTe/CdS thin film solar cells with an efficiency above 9% have been prepared. 相似文献
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Gurjit Singh S. S. Verma 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2018,40(2):155-162
In the present work, a thin film solar cell structure consisting of thin GaAs layer, metallic nanoparticle array and aluminum back reflector is proposed and studied to calculate optical absorption and current density using finite difference time domain (FDTD) numerical simulation method. Simulation results show that in comparison to other metallic nanoparticles, aluminum nanoparticles have strong plasmonic scattering effect at optimized period of 100nm and radius 40nm to improve the efficiency of thin film GaAs solar cells through enhancement of current density integrated over solar spectrum by 31% compared to bare thin film GaAs solar cells. 相似文献
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Tokio Nakada Yutaka Hirabayashi Takehito Tokado Daiske Ohmori Takahiro Mise 《Solar Energy》2004,77(6):739-747
Cu(In1−xGax)Se2 (CIGS)-based thin film solar cells fabricated using transparent conducting oxide (TCO) front and back contacts were investigated. The cell performance of substrate-type CIGS devices using TCO back contacts was almost the same as that of conventional CIGS solar cells with metallic Mo back contacts when the CIGS deposition temperatures were below 500 °C for SnO2:F and 520 °C for ITO. CIGS thin film solar cells fabricated with ITO back contacts had an efficiency of 15.2% without anti-reflection coatings. However, the cell performance deteriorated at deposition temperatures above 520 °C. This is attributed to the increased resistivity of the TCO’s due to the removal of fluorine from SnO2 or undesirable formation of a Ga2O3 thin layer at the CIGS/ITO interface. The formation of Ga2O3 was eliminated by inserting an intermediate layer such as Mo between ITO and CIGS. Furthermore, bifacial CIGS thin film solar cells were demonstrated as being one of the applications of semi-transparent CIGS devices. The cell performance of bifacial devices was improved by controlling the thickness of the CIGS absorber layer. Superstrate-type CIGS thin film solar cells with an efficiency of 12.8% were fabricated using a ZnO:Al front contact. Key techniques include the use of a graded band gap Cu(In,Ga)3Se5 phase absorber layer and a ZnO buffer layer along with the inclusion of Na2S during CIGS deposition. 相似文献
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Thomas Dienel 《Solar Energy》2010,84(8):1366-4782
We present a method to evaluate the parameters defining the efficiency of luminescent solar concentrators (LSCs). The light harvesting and self-absorption properties of thin film LSCs on glass substrates are determined by optical spectroscopy and the resulting optical efficiency is consistent with the directly measured photon flux gain. 相似文献