Silicon nitride nanopillars and nanocones formed by nickel nanoclusters and inductively coupled plasma etching for solar cell application

Kartika Chandra Sahoo, Men Ku Lin, Edward Yi Chang, Tran Binh Tinh, Yiming Li, Jin Hua Huang

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

The external quantum efficiency of solar cells can be improved by using textured surface with minimum reflection. We have fabricated nanopillars and nanocone structures on silicon nitride surface by means of self-assembled nickel nano particle masks with single step inductively coupled plasma (ICP) ion etching and double step ICP etching, respectively. Thus, sub-wavelength nanopillar and nanoconelike structures displaying low reflectance were obtained readily without the need for any lithography equipment. The formation mechanism of nanopillar and nanocone like structures fabricated on silicon nitride surface has been discussed. The relationship of etching time with structure height and average reflectance spectra has been drawn.

Original languageEnglish
Article number126508
JournalJapanese journal of applied physics
Volume48
Issue number12
DOIs
StatePublished - 1 Dec 2009

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