基于寬光譜利用的新型硅基薄膜吸收材料的研究報告

劉豐珍

摘 要：該研究從有序調控帶隙寬度（非晶和微晶硅鍺薄膜）、改進硅基薄膜的光電特性（大晶粒薄膜多晶硅）和拆分帶隙（中間帶硅基材料）等方面，來構建和研究適合于疊層電池寬光譜利用的新型硅基薄膜吸收材料。通過在新型吸收材料基礎方面的深入研究和創新，為實現寬光譜利用的高效硅基薄膜電池的總目標提供科學依據。

關鍵詞：硅基薄膜 寬光譜 硅鍺材料 多晶硅薄膜 中間帶材料

Scientific Report of Basic Research on New Type Silicon Based Thin Film Absorption Material for Wide Spectrum Utilization

Liu Fengzhen

（University of Chinese Academy of Sciences）

Abstract：The main subjects of this project are to develop new type silicon based absorption materials for wide spectrum utilization in high efficiency multi-junction solar cells. The approaches include modifying the band gap using amorphous and micro-crystalline silicon germanium thin film， improve the opto-electronic properties using polycrystalline silicon thin film with large grains and splitting the band gap using new concept intermediate band materials. The depth investigation and innovation on new type absorption materials will provide a scientific basis for the realization of the main target of high efficiency silicon thin film solar cell based on broad spectrum utilization.

Key Words：Silicon based thin film； Wide band； Silicon germanium material； Polycrystalline silicon thin film； Intermidiate band material

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