Reflectance and minority carrier lifetime of silicon nanoholes synthesized by chemical etching method

Daisheng Zhang, Rui Jia, Chen Chen, Wuchang Ding, Zhi Jin, Xinyu Liu, Tianchun Ye

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Silicon nanoholes (Si NHs) were synthesized by a simple metal-assisted chemical etching method. With different pre-etching time of Ag particles, Si NHs with different morphology and Si nanowires (NWs) were prepared. After tetramethyl ammonium hydroxide (TMAH) etching, the NH sample with pre-etching Ag particles for 20 min show average reflectance below 5% which is comparable to the reflectance of the NW sample. The minority carrier lifetime of this NH sample is 58.2 μs due to their low surface recombination, while the lifetime of the NWs is 38.0 μs under the same iodine-ethanol passivation.

Original languageEnglish (US)
Pages (from-to)69-73
Number of pages5
JournalChemical Physics Letters
Volume601
DOIs
StatePublished - May 9 2014

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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