Influence of annealing on composition and optical properties of CdTe nanoparticle layer-by-layer films

Joe Briscoe; Diego E. Gallardo; Vladimir Lesnyak; Steve Dunn

doi:10.1166/jnn.2011.4154

Influence of annealing on composition and optical properties of CdTe nanoparticle layer-by-layer films

Joe Briscoe, Diego E. Gallardo, Vladimir Lesnyak, Steve Dunn

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

1 Citation (Scopus)

Abstract

CdTe nanoparticle-polymer composite films were deposited conformally using a layer-by-layer (LbL) process onto planar or ZnO nanorod-coated substrates. Films were annealed between 150-450 °C. Under air this led to oxidation of the nanoparticles while under vacuum their composition was retained. Annealing at 450 °C led to complete removal of the polymer with a loss of quantum confinement as shown by UV-vis spectroscopy. Annealing at 350 °C gave partial removal of the polymer and retained quantum confinement. Such annealed nanoparticle composite systems may have application in photovoltaics.

Original language	English
Pages (from-to)	5270-5273
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	11
Issue number	6
DOIs	https://doi.org/10.1166/jnn.2011.4154
Publication status	Published - 1 Jun 2011
Externally published	Yes

Keywords

Layer by layer
Photovoltaic
ZnO

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1166/jnn.2011.4154

Cite this

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abstract = "CdTe nanoparticle-polymer composite films were deposited conformally using a layer-by-layer (LbL) process onto planar or ZnO nanorod-coated substrates. Films were annealed between 150-450 °C. Under air this led to oxidation of the nanoparticles while under vacuum their composition was retained. Annealing at 450 °C led to complete removal of the polymer with a loss of quantum confinement as shown by UV-vis spectroscopy. Annealing at 350 °C gave partial removal of the polymer and retained quantum confinement. Such annealed nanoparticle composite systems may have application in photovoltaics.",

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AU - Dunn, Steve

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AB - CdTe nanoparticle-polymer composite films were deposited conformally using a layer-by-layer (LbL) process onto planar or ZnO nanorod-coated substrates. Films were annealed between 150-450 °C. Under air this led to oxidation of the nanoparticles while under vacuum their composition was retained. Annealing at 450 °C led to complete removal of the polymer with a loss of quantum confinement as shown by UV-vis spectroscopy. Annealing at 350 °C gave partial removal of the polymer and retained quantum confinement. Such annealed nanoparticle composite systems may have application in photovoltaics.

KW - Layer by layer

KW - Photovoltaic

KW - ZnO

U2 - 10.1166/jnn.2011.4154

DO - 10.1166/jnn.2011.4154

M3 - Article

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