文章信息/Info

Title:

Progress of Graphene-Silicon photovoltaic devices

 

作者:

徐迪愷 余學功 楊德仁

浙江大學硅材料國家重點實驗室

Author(s):

XU Dikai; YU Xuegong; YANG Deren

State Key Laboratory of Silicon Materials

關鍵詞:

石墨烯; 硅; 太陽能電池; 摻雜; 界面

文獻標志碼:

A

摘要:

隨著化石能源的日益枯竭，能源問題成為當今世界要解決的首要問題。在將來的世界能源結構中，太陽能有望占據主導地位。石墨烯是已知材料中載流子移動速度最快的，化學穩定性好，且在可見光波段具有極高的透光性，非常適合應用于光伏領域。石墨烯-硅太陽能電池是一種新型的硅基肖特基結太陽能電池，具有制備工藝簡單，制作成本低等特點，應用潛力巨大。自2010年首次報道以來，該器件的光電轉換效率已由1.65%迅速提升至15.6%，得到了廣泛的關注。本文簡要介紹了石墨烯-硅太陽能電池的基本結構和工作原理，從硅表面反射率優化、石墨烯導電性和功函數優化、石墨烯-硅界面優化和n型石墨烯-硅太陽能電池等4個方面概述了石墨烯-硅太陽能電池的發展歷程、研究現狀和未來趨勢。

Abstract:

Since the fossil fuels are exhausting, energy issue becomes the primary problem for the whole world. Solar energy is supposed to prevail in the future world energy structure. Graphene, which has the fastest carrier mobility among known materials, is of brilliant chemical stability and highly transparency in the visible light range. Therefore, Graphene is suitable material for photovoltaic applications. Graphene-Silicon（Gr-Si） solar cell, which is a new kind Si-based Schottky junction solar cell, has a great application potential due to its simple and low-cost fabrication method. Since it was first reported in year of 2010, the Gr-Si solar cell has attracted considerable interests. Rapid developments of power converse efficiency from 1.65% to 15.6% have been witnessed. In this article, the device structure and working mechanism of Gr-Si solar cells are introduced. Meanwhile, recent development and breakthroughs concerning optimization in reflection of Si surface, work function and conductance of Gr films, quality of Gr-Si interface and n-Gr/p-Si solar cells have been reviewed.