Effects of Successive CdCl2 Treatments on the Texture of Thin Film CdTe Solar Cells

Effects of Successive CdCl2 Treatments on the Texture of Thin Film CdTe Solar Cells
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连续 CdCl2 处理对薄膜 CdTe 太阳能电池织构的影响

DOI:
10.1109/pvsc45281.2020.9300881
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发表时间:
2020
期刊:
2020 47th IEEE Photovoltaic Specialists Conference (PVSC)
影响因子:
--
通讯作者:
J. Bowers
J. Bowers
中科院分区:
--
文献类型:
--
作者:
V. Kornienko;R. Greenhalgh;K. Morris;A. Abbas;T. Fiducia;R. Maclachlan;Y. Tse;M. Walls;J. Bowers

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高效率的CdTe太阳能电池需要CdCl 2活化处理。该处理具有许多效果,包括增加晶粒尺寸和随机化织构。增加晶粒尺寸将通过最小化晶界复合而导致更高的效率。使用金属氧化物层代替硫化镉允许使用更高的活化温度,从而导致更大的晶粒尺寸。然而,使用这些较高的温度可能会影响晶界中氯的浓度。在这里,我们研究了使用第一个高温激活封闭空间升华(CSS)Au/CdTe/TEC 12 D设备,其次是第二个优化的氯化镉处理。我们报告的纹理和晶粒尺寸的影响。电子背散射衍射(EBSD)已进行了使用等离子体聚焦离子束(PFIB)配备旋转研磨。初步结果表明,第一个较高的温度激活的结果在较大的晶粒和随机织构。
The CdCl2 activation treatment is required for high efficiency CdTe solar cells. The treatment has many effects including increasing grain size and randomizing texture. Increasing grain size should result in higher efficiencies by minimizing grain boundary recombination. The use of metal-oxide layers to replace cadmium sulphide allows higher activation temperatures to be used resulting in larger grain sizes. However, use of these higher temperatures may affect the concentration of chlorine in the grain boundaries. Here we investigate the use of a first high temperature activation on closed space sublimated (CSS) Au/CdTe/TEC12D devices followed by a second optimized cadmium chloride treatment. We report on the effects on texture and grain size. Electron backscatter diffraction (EBSD) has been carried out using a Plasma Focused Ion Beam (PFIB) equipped with spin milling. Initial results indicate that the first higher temperature activation results in larger grains and a randomized texture.
DOI: 10.1002/aenm.201702666
发表时间: 2018-04-16
影响因子: 27.8
作者:
Amarasinghe, Mahisha;Colegrove, Eric;Metzger, Wyatt K.
通讯作者: Metzger, Wyatt K.