3-D solar cells based on radial silicon heterojunctions exploiting microhole lattices

Weiying Ou,Lei Zhao,Salvatore Surdo,Hongwei Diao,Hailing Li,Chunlan Zhou,Wenjing Wang,Giuseppe Barillaro

IEEE Photonics Technology Letters（2013）

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摘要

In this letter, 3-D solar cells based on radial amorphous/crystalline silicon heterojunctions (SHJs), which are formed on 2-D lattices of vertical high aspect-ratio microholes (MHs) etched in crystalline silicon (c-Si) substrates, are realized with conversion efficiency of ~ 3%. Silicon high aspect-ratio MH lattices, with hole diameter of a few micrometers and hole depth of tens micrometers, are p...

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关键词

Silicon,Photovoltaic cells,Lattices,P-n junctions,Etching,Reflectivity

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