Tunability of the optical band edge in thin PbS films chemically deposited on GaAs(100)

Anna Osherov; Janos P. Makai; Janos Balazs; Zsolt J. Horvath; Nadav Gutman; Amir Saár; Yuval Golan

doi:10.1088/0953-8984/22/26/262002

Tunability of the optical band edge in thin PbS films chemically deposited on GaAs(100)

Anna Osherov
, Janos P. Makai
, Janos Balazs
, Zsolt J. Horvath
, Nadav Gutman
, Amir Saár
, Yuval Golan

Department of Materials Engineering

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

22 Scopus citations

Abstract

The optical properties of chemical-solution-deposited thin films of lead sulfide (PbS) were investigated using infrared transmission and photoluminescence spectroscopies. The synthesized films are characterized by a wide range of microstructures, from 15 nm nanocrystals up to monocrystals. Energy bandgap values for bulk and nanostructured layers varied from 0.41 eV up to 0.48 eV, respectively. Blueshifts in both absorbance and emission peaks of the nanostructured layers were obtained due to quantum size effects. The optical properties of the films are shown to be size-dependent, with the band edge increasing with temperature.

Original language	English
Article number	262002
Journal	Journal of Physics Condensed Matter
Volume	22
Issue number	26
DOIs	https://doi.org/10.1088/0953-8984/22/26/262002
State	Published - 7 Jul 2010

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1088/0953-8984/22/26/262002

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title = "Tunability of the optical band edge in thin PbS films chemically deposited on GaAs(100)",

abstract = "The optical properties of chemical-solution-deposited thin films of lead sulfide (PbS) were investigated using infrared transmission and photoluminescence spectroscopies. The synthesized films are characterized by a wide range of microstructures, from 15 nm nanocrystals up to monocrystals. Energy bandgap values for bulk and nanostructured layers varied from 0.41 eV up to 0.48 eV, respectively. Blueshifts in both absorbance and emission peaks of the nanostructured layers were obtained due to quantum size effects. The optical properties of the films are shown to be size-dependent, with the band edge increasing with temperature.",

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T1 - Tunability of the optical band edge in thin PbS films chemically deposited on GaAs(100)

AU - Osherov, Anna

AU - Makai, Janos P.

AU - Balazs, Janos

AU - Horvath, Zsolt J.

AU - Gutman, Nadav

AU - Saár, Amir

AU - Golan, Yuval

PY - 2010/7/7

Y1 - 2010/7/7

N2 - The optical properties of chemical-solution-deposited thin films of lead sulfide (PbS) were investigated using infrared transmission and photoluminescence spectroscopies. The synthesized films are characterized by a wide range of microstructures, from 15 nm nanocrystals up to monocrystals. Energy bandgap values for bulk and nanostructured layers varied from 0.41 eV up to 0.48 eV, respectively. Blueshifts in both absorbance and emission peaks of the nanostructured layers were obtained due to quantum size effects. The optical properties of the films are shown to be size-dependent, with the band edge increasing with temperature.

AB - The optical properties of chemical-solution-deposited thin films of lead sulfide (PbS) were investigated using infrared transmission and photoluminescence spectroscopies. The synthesized films are characterized by a wide range of microstructures, from 15 nm nanocrystals up to monocrystals. Energy bandgap values for bulk and nanostructured layers varied from 0.41 eV up to 0.48 eV, respectively. Blueshifts in both absorbance and emission peaks of the nanostructured layers were obtained due to quantum size effects. The optical properties of the films are shown to be size-dependent, with the band edge increasing with temperature.

UR - https://www.scopus.com/pages/publications/77955971188

U2 - 10.1088/0953-8984/22/26/262002

DO - 10.1088/0953-8984/22/26/262002

M3 - Article

C2 - 21386454

AN - SCOPUS:77955971188

SN - 0953-8984

VL - 22

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 26

M1 - 262002

ER -

Tunability of the optical band edge in thin PbS films chemically deposited on GaAs(100)

Abstract

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