Red to green rainbow photoluminescence from unoxidized silicon nanocrystallites

Zain Yamani; Sahel Ashhab; Ammar Nayfeh; W. Howard Thompson; Munir Nayfeh

doi:10.1063/1.367313

Red to green rainbow photoluminescence from unoxidized silicon nanocrystallites

Zain Yamani^*
, Sahel Ashhab
, Ammar Nayfeh
, W. Howard Thompson
, Munir Nayfeh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

We prepared luminescent silicon by incorporating H₂O₂ in the anodizing process. Under UV excitation, our samples appear reddish, orangish, yellowish to greenish as the electrolyte-air interface at the meniscus is approached. Under high current anodization, the emission becomes broad but unstable. The time characteristics of all the emission regions are in the range of 1-10 μs. The results are consistent with a significant reduction of crystallite sizes, and may be explained via novel Si - Si dimer surface states that are induced by quantum confinement.

Original language	English
Pages (from-to)	3929-3931
Number of pages	3
Journal	Journal of Applied Physics
Volume	83
Issue number	7
DOIs	https://doi.org/10.1063/1.367313
State	Published - 1998
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.367313

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title = "Red to green rainbow photoluminescence from unoxidized silicon nanocrystallites",

abstract = "We prepared luminescent silicon by incorporating H2O2 in the anodizing process. Under UV excitation, our samples appear reddish, orangish, yellowish to greenish as the electrolyte-air interface at the meniscus is approached. Under high current anodization, the emission becomes broad but unstable. The time characteristics of all the emission regions are in the range of 1-10 μs. The results are consistent with a significant reduction of crystallite sizes, and may be explained via novel Si - Si dimer surface states that are induced by quantum confinement.",

author = "Zain Yamani and Sahel Ashhab and Ammar Nayfeh and Thompson, \{W. Howard\} and Munir Nayfeh",

year = "1998",

doi = "10.1063/1.367313",

language = "English",

volume = "83",

pages = "3929--3931",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Red to green rainbow photoluminescence from unoxidized silicon nanocrystallites

AU - Yamani, Zain

AU - Ashhab, Sahel

AU - Nayfeh, Ammar

AU - Thompson, W. Howard

AU - Nayfeh, Munir

PY - 1998

Y1 - 1998

N2 - We prepared luminescent silicon by incorporating H2O2 in the anodizing process. Under UV excitation, our samples appear reddish, orangish, yellowish to greenish as the electrolyte-air interface at the meniscus is approached. Under high current anodization, the emission becomes broad but unstable. The time characteristics of all the emission regions are in the range of 1-10 μs. The results are consistent with a significant reduction of crystallite sizes, and may be explained via novel Si - Si dimer surface states that are induced by quantum confinement.

AB - We prepared luminescent silicon by incorporating H2O2 in the anodizing process. Under UV excitation, our samples appear reddish, orangish, yellowish to greenish as the electrolyte-air interface at the meniscus is approached. Under high current anodization, the emission becomes broad but unstable. The time characteristics of all the emission regions are in the range of 1-10 μs. The results are consistent with a significant reduction of crystallite sizes, and may be explained via novel Si - Si dimer surface states that are induced by quantum confinement.

UR - https://www.scopus.com/pages/publications/0001523156

U2 - 10.1063/1.367313

DO - 10.1063/1.367313

M3 - Article

AN - SCOPUS:0001523156

SN - 0021-8979

VL - 83

SP - 3929

EP - 3931

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

ER -

Red to green rainbow photoluminescence from unoxidized silicon nanocrystallites

Abstract

ASJC Scopus subject areas

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