Time-Resolved Photoluminescence Spectra of Porous Si

Chemical Research in Chinese Universities ›› 1995, Vol. 11 ›› Issue (1): 58-63.

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Time-Resolved Photoluminescence Spectra of Porous Si

FEI Hao-sheng¹, HAN Li¹, CHE Yan-long¹, NIE Rui-juan¹, LI Tie-jin²

1. Deparrment of Physics, Jilin University, Changchun, 130023;
2. Deparrment of Chemistry, Jilin University, Changchun, 130023

Received:1994-04-29 Online:1995-01-24 Published:2011-08-17
Supported by:
Supported by the National Natural Science Foundation of China.

Abstract

Abstract: The photoluminescence spectra of porous Si have been studied.Its timere-solved luminescence spectra show a red shift of luminescencc peak with increasingdelay time after exciting and a nonexponential decay.Several spectral bands withdifferent Gaussian center appear by means of the decomposition of a spetrum.Theresuits of our experiments show quantum confined characters in porous Si, and wespeculate that the short wavelength band at 465 nm is the direct band froni P₁₅ to P₂₅.

Key words: Porous Si, Time-resolved spectra, Nanocrystal, Photoluminescence

FEI Hao-sheng, HAN Li, CHE Yan-long, NIE Rui-juan, LI Tie-jin. Time-Resolved Photoluminescence Spectra of Porous Si[J]. Chemical Research in Chinese Universities, 1995, 11(1): 58-63.

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Time-Resolved Photoluminescence Spectra of Porous Si

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