The high deposition of microcrystalline silicon thin film by very high frequency plasma enhanced chemical vapour deposition and the fabrication of solar cells

作者: Chen Yong-Sheng , Wang Jian-Hua , Lu Jing-Xiao , Zheng Wen , Gu Jin-Hua

DOI: 10.1088/1674-1056/17/9/054

关键词: Deposition (chemistry)Ion platingChemical engineeringCombustion chemical vapor depositionThin filmPulsed laser depositionMaterials scienceSputter depositionPlasma-enhanced chemical vapor depositionPlasma processing

摘要: This paper reports that the intrinsic microcrystalline silicon (μc-Si:H) films are prepared with plasma enhanced chemical vapour deposition from silane/hydrogen mixtures at 200°C aim to increase rate. An of rate 0.88 nm/s is obtained by using a excitation frequency 75 MHz. combination higher pressure, an increased silane concentration, and discharge powers. In addition, transient behaviour, which can decrease film crystallinity, could be prevented filling background gas H2 prior ignition, selecting proper discharging time after flow injection. Material under these conditions 0.78 maintains crystallinity fine electronic properties. By H-plasma treatment before i-layer deposition, single junction μc-Si:H solar cells 5.5% efficiency fabricated.

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