Growth mechanisms and origin of localized surface plasmon resonance coupled exciton effects in Cu2-xS thin films

A. Dennyson Savariraj; Hee Je Kim; K. K. Viswanathan; M. Vijaykumar; Kandasamy Prabakar

doi:10.1039/c5ra26744g

Growth mechanisms and origin of localized surface plasmon resonance coupled exciton effects in Cu_2-xS thin films

A. Dennyson Savariraj, Hee Je Kim, K. K. Viswanathan, M. Vijaykumar, Kandasamy Prabakar

Department of Chemistry

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

12 Scopus citations

Abstract

We have demonstrated a robust protocol to prepare Cu_2-xS thin films with a controlled crystal phase and size which exhibit localized surface plasmon resonance (LSPR) coupled exciton effects by a simple template free single step wet chemical method without any surfactant. The LSPR frequency can be tuned in the Cu_2-xS thin films by the growth temperature and time which controls the free carrier density. These selectively grown Cu_2-xS thin films possess a tunable band gap (2.6-1.4 eV) due to the quantum size effect. The origin of the LSPR coupled exciton effects are discussed.

Original language	English
Pages (from-to)	19034-19040
Number of pages	7
Journal	RSC Advances
Volume	6
Issue number	23
DOIs	https://doi.org/10.1039/c5ra26744g
State	Published - 2016

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title = "Growth mechanisms and origin of localized surface plasmon resonance coupled exciton effects in Cu2-xS thin films",

abstract = "We have demonstrated a robust protocol to prepare Cu2-xS thin films with a controlled crystal phase and size which exhibit localized surface plasmon resonance (LSPR) coupled exciton effects by a simple template free single step wet chemical method without any surfactant. The LSPR frequency can be tuned in the Cu2-xS thin films by the growth temperature and time which controls the free carrier density. These selectively grown Cu2-xS thin films possess a tunable band gap (2.6-1.4 eV) due to the quantum size effect. The origin of the LSPR coupled exciton effects are discussed.",

author = "Savariraj, {A. Dennyson} and Kim, {Hee Je} and Viswanathan, {K. K.} and M. Vijaykumar and Kandasamy Prabakar",

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AU - Savariraj, A. Dennyson

AU - Kim, Hee Je

AU - Viswanathan, K. K.

AU - Vijaykumar, M.

AU - Prabakar, Kandasamy

N1 - Publisher Copyright: © The Royal Society of Chemistry 2016.

PY - 2016

Y1 - 2016

N2 - We have demonstrated a robust protocol to prepare Cu2-xS thin films with a controlled crystal phase and size which exhibit localized surface plasmon resonance (LSPR) coupled exciton effects by a simple template free single step wet chemical method without any surfactant. The LSPR frequency can be tuned in the Cu2-xS thin films by the growth temperature and time which controls the free carrier density. These selectively grown Cu2-xS thin films possess a tunable band gap (2.6-1.4 eV) due to the quantum size effect. The origin of the LSPR coupled exciton effects are discussed.

AB - We have demonstrated a robust protocol to prepare Cu2-xS thin films with a controlled crystal phase and size which exhibit localized surface plasmon resonance (LSPR) coupled exciton effects by a simple template free single step wet chemical method without any surfactant. The LSPR frequency can be tuned in the Cu2-xS thin films by the growth temperature and time which controls the free carrier density. These selectively grown Cu2-xS thin films possess a tunable band gap (2.6-1.4 eV) due to the quantum size effect. The origin of the LSPR coupled exciton effects are discussed.

UR - http://www.scopus.com/inward/record.url?scp=84958968741&partnerID=8YFLogxK

U2 - 10.1039/c5ra26744g

DO - 10.1039/c5ra26744g

M3 - Article

AN - SCOPUS:84958968741

SN - 2046-2069

VL - 6

SP - 19034

EP - 19040

JO - RSC Advances

JF - RSC Advances

IS - 23

ER -

Growth mechanisms and origin of localized surface plasmon resonance coupled exciton effects in Cu_2-xS thin films

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