Overcoming the poor short wavelength spectral response of CdS/CdTe photovoltaic modules via luminescence down‐shifting: ray‐tracing simulations

Overcoming the poor short wavelength spectral response of CdS/CdTe photovoltaic modules via luminescence down‐shifting: ray‐tracing simulations
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通过发光下移克服 CdS/CdTe 光伏模块较差的短波长光谱响应:光线追踪模拟

DOI:
10.1002/pip.723
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发表时间:
2007
期刊:
Progress in Photovoltaics: Research and Applications
影响因子:
--
通讯作者:
K. McIntosh
K. McIntosh
中科院分区:
--
文献类型:
--
作者:
B. Richards;K. McIntosh

文献摘要

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硫化镉/碲化镉(CdS/CdTe)光伏(PV)模块的短波长响应可以通过将发光下移(LDS)层应用于PV模块来改善。LDS层包含荧光有机染料的混合物,所述荧光有机染料能够吸收λ < 540 nm的短波长光,PV模块对此表现出低的外部量子效率(EQE),并且在较长波长(λ > 540 nm)下重新发射它,其中太阳能电池EQE高。射线追踪模拟表明,含有三种染料的混合LDS层可导致CdS/CdTe PV模块的短路电流密度从Jsc = 19.8 mA/cm 2增加到Jsc = 22.9 mA/cm 2。这相当于转换效率从9.6%提高到11.2%。这表明,通过应用LDS层,可以预期生产CdS/CdTe PV模块的性能相对增加近17%,而可能不对太阳能电池本身进行任何改变。版权所有© 2006约翰威利父子有限公司。
The short‐wavelength response of cadmium sulfide/cadmium telluride (CdS/CdTe) photovoltaic (PV) modules can be improved by the application of a luminescent down‐shifting (LDS) layer to the PV module. The LDS layer contains a mixture of fluorescent organic dyes that are able to absorb short‐wavelength light of λ < 540 nm, for which the PV module exhibited low external quantum efficiency (EQE), and re‐emit it at a longer wavelength (λ > 540 nm), where the solar cell EQE is high. Ray‐tracing simulations indicate that a mixed LDS layer containing three dyes could lead to an increase in the short‐circuit current density from Jsc = 19.8 mA/cm2 to Jsc = 22.9 mA/cm2 for a CdS/CdTe PV module. This corresponds to an increase in conversion efficiency from 9.6% to 11.2%. This indicates that a relative increase in the performance of a production CdS/CdTe PV module of nearly 17% can be expected via the application of LDS layers, possibly without any making any alterations to the solar cell itself. Copyright © 2006 John Wiley & Sons, Ltd.