Size quantization in small semiconductor particles

A. J. Nozik; Ferd Williams; M. T. Nenadović; T. Rajh; O. I. Mićić

doi:10.1021/j100249a004

Size quantization in small semiconductor particles

A. J. Nozik, Ferd Williams, M. T. Nenadović, T. Rajh, O. I. Mićić

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231 Scopus citations

Abstract

Optical effects due to size quantization in three dimensions have been observed for CdS and PbS colloids with particle diameters less than 50 A and 20 to 200 Å, respectively. The optical absorption edge is blue shifted ∼0.9 eV for the CdS colloid; for PbS colloids the shift is ∼2 eV for particle diameters 20-30 Å, and ∼1 eV for particle diameters 50-200 Å. The results are consistent with perturbation of the semiconductor band structure due to carrier confinement resulting in an increase in the effective band gap.

Original language	English (US)
Pages (from-to)	397-399
Number of pages	3
Journal	Journal of physical chemistry
Volume	89
Issue number	3
DOIs	https://doi.org/10.1021/j100249a004
State	Published - 1985
Externally published	Yes

ASJC Scopus subject areas

General Engineering
Physical and Theoretical Chemistry

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@article{7532d46678e64011b3b02236ff8bb107,

title = "Size quantization in small semiconductor particles",

abstract = "Optical effects due to size quantization in three dimensions have been observed for CdS and PbS colloids with particle diameters less than 50 A and 20 to 200 {\AA}, respectively. The optical absorption edge is blue shifted ∼0.9 eV for the CdS colloid; for PbS colloids the shift is ∼2 eV for particle diameters 20-30 {\AA}, and ∼1 eV for particle diameters 50-200 {\AA}. The results are consistent with perturbation of the semiconductor band structure due to carrier confinement resulting in an increase in the effective band gap.",

author = "Nozik, {A. J.} and Ferd Williams and Nenadovi{\'c}, {M. T.} and T. Rajh and Mi{\'c}i{\'c}, {O. I.}",

year = "1985",

doi = "10.1021/j100249a004",

language = "English (US)",

volume = "89",

pages = "397--399",

journal = "Journal of physical chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

number = "3",

}

TY - JOUR

T1 - Size quantization in small semiconductor particles

AU - Nozik, A. J.

AU - Williams, Ferd

AU - Nenadović, M. T.

AU - Rajh, T.

AU - Mićić, O. I.

PY - 1985

Y1 - 1985

N2 - Optical effects due to size quantization in three dimensions have been observed for CdS and PbS colloids with particle diameters less than 50 A and 20 to 200 Å, respectively. The optical absorption edge is blue shifted ∼0.9 eV for the CdS colloid; for PbS colloids the shift is ∼2 eV for particle diameters 20-30 Å, and ∼1 eV for particle diameters 50-200 Å. The results are consistent with perturbation of the semiconductor band structure due to carrier confinement resulting in an increase in the effective band gap.

AB - Optical effects due to size quantization in three dimensions have been observed for CdS and PbS colloids with particle diameters less than 50 A and 20 to 200 Å, respectively. The optical absorption edge is blue shifted ∼0.9 eV for the CdS colloid; for PbS colloids the shift is ∼2 eV for particle diameters 20-30 Å, and ∼1 eV for particle diameters 50-200 Å. The results are consistent with perturbation of the semiconductor band structure due to carrier confinement resulting in an increase in the effective band gap.

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U2 - 10.1021/j100249a004

DO - 10.1021/j100249a004

M3 - Article

AN - SCOPUS:0000508571

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VL - 89

SP - 397

EP - 399

JO - Journal of physical chemistry

JF - Journal of physical chemistry

IS - 3

ER -

Size quantization in small semiconductor particles

Abstract

ASJC Scopus subject areas

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