TIME-RESOLVED SPECTROSCOPY OF VISIBLY EMITTING POROUS SILICON

被引：32

作者：

GAPONENKO, SV

GERMANENKO, IN

PETROV, EP

STUPAK, AP

BONDARENKO, VP

DOROFEEV, AM

机构：

[1] MINSK MOLEC & ATOM PHYS INST, MINSK 220072, BELARUS

[2] MINSK RADIOENGN INST, MINSK 220069, BELARUS

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 01期

关键词：

D O I：

10.1063/1.112004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Time-resolved emission spectra and photoluminescence decay kinetics are analyzed in porous Si samples exhibiting a noticeable inhomogeneous broadening under steady-state selective excitation. The gated emission spectra are found to be substantially narrower compared to a steady-state one, with a pronounced redshift with time. Considerable dependence of the decay parameters upon the emission wavelength is found. The decay time distribution analysis applied leads to a model where the nonradiative decay mechanism is attributed to traps of the same type, the number of traps per Si grain obeying the Poissonian statistics.

引用

页码：85 / 87

页数：3

共 23 条

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