鋁背場的顯微組織和力學(xué)性能[外文翻譯].zip
鋁背場的顯微組織和力學(xué)性能[外文翻譯],材料科學(xué)與工程 材料物理與化學(xué)，外文文獻(xiàn)翻譯及原文microstructure and mechanical propertiesof aluminium back contact layersabstract: the overall demand to reduce solar energy costs gives...
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內(nèi)容介紹
原文檔由會(huì)員 牛奶咖啡 發(fā)布
材料科學(xué)與工程 材料物理與化學(xué)，外文文獻(xiàn)翻譯及原文
MICROSTRUCTURE AND MECHANICAL PROPERTIESOF ALUMINIUM BACK CONTACT LAYERS
ABSTRACT:
The overall demand to reduce solar energy costs gives a continuous drive to reduce the thickness ofsilicon wafers. Handling and bowing problems associated with thinner wafers become more and more important, asthese can lead to cells cracking and thus to high yield losses. In this paper the microstructure and mechanicalproperties of the aluminium on the rear side of a solar cell are discussed. It is shown that the aluminium back contacthas a complex composite-like microstructure, consisting of five main components: 1) the back surface field layer;2) a eutectic layer; 3) spherical (3 - 5 μm) hypereutectic Al-Si particles surrounded by a thin aluminum oxide layer(200 nm); 4) a bismuth-silicate glass matrix; and 5) pores (14 vol.%). The Young’s modulus of the Al-Si particles isestimated by nanoindentation and the overall Young’s modulus is estimated on the basis of bowing measurements.These results are used as input parameters for an improved thermomechanical multiscale model of a silicon solar cell.
MICROSTRUCTURE AND MECHANICAL PROPERTIESOF ALUMINIUM BACK CONTACT LAYERS
ABSTRACT:
The overall demand to reduce solar energy costs gives a continuous drive to reduce the thickness ofsilicon wafers. Handling and bowing problems associated with thinner wafers become more and more important, asthese can lead to cells cracking and thus to high yield losses. In this paper the microstructure and mechanicalproperties of the aluminium on the rear side of a solar cell are discussed. It is shown that the aluminium back contacthas a complex composite-like microstructure, consisting of five main components: 1) the back surface field layer;2) a eutectic layer; 3) spherical (3 - 5 μm) hypereutectic Al-Si particles surrounded by a thin aluminum oxide layer(200 nm); 4) a bismuth-silicate glass matrix; and 5) pores (14 vol.%). The Young’s modulus of the Al-Si particles isestimated by nanoindentation and the overall Young’s modulus is estimated on the basis of bowing measurements.These results are used as input parameters for an improved thermomechanical multiscale model of a silicon solar cell.
摘要:減少太陽能成本的總需求為尋找途徑減少硅晶層厚度的科學(xué)家們提供了源源不斷的動(dòng)力。解決與薄硅片相關(guān)的問題變得越來越重要。因?yàn)楸∑梢詫?dǎo)致電池破裂,從而增大了出產(chǎn)損失率。本文旨在討論太陽能電池鋁背場的微觀結(jié)構(gòu)和機(jī)械性能。結(jié)果表明,鋁背場具有復(fù)雜的復(fù)合微觀結(jié)構(gòu),包括五個(gè)主要部分:1)背表面層;
2)共晶層;3)球形過共晶鋁硅粒子被一層氧化鋁薄膜覆蓋;4)玻璃體硅酸鉍;5)氣孔(14%)。這些結(jié)果作為輸入?yún)?shù)為提高多尺度熱機(jī)模型的硅太陽能電池。
關(guān)鍵詞:鋁背接觸,新型器件，彎曲的硅，太陽能電池
