Luminescence enhancement in LaPO4:Ce/CdTe nanocomposite scintillators

Jigang Wang; Ryan Hall; Lun Ma; Wei Chen; Renfei Feng; Ramaswami Sammynaiken; Yongsheng Wang; Dawei He

doi:10.1117/12.2015879

Luminescence enhancement in LaPO₄:Ce/CdTe nanocomposite scintillators

Jigang Wang
, Ryan Hall
, Lun Ma
, Wei Chen^*
, Renfei Feng
, Ramaswami Sammynaiken
, Yongsheng Wang
, Dawei He

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Radiation detection demands new scintillators with high quantum efficiency, high energy resolution, and short luminescence lifetimes. Herein, we report the enhancement in the photoluminescence and x-ray luminescence from CdTe quantum dots in LaPO₄:Ce/CdTe nanocomposites and their potential applications for radiation detection. The luminescence enhancement is attributed to energy transfer from LaPO₄:Ce to CdTe quantum dots in the nanocomposites. LaPO₄:Ce nanoparticles have a high stopping power for radiation but their emission is in the ultraviolet range that is reabsorbed in most polymer host materials. CdTe quantum dots have strong photoluminescence and size-tunable emissions but very weak scintillation emission due to their low stopping power. The combination of LaPO₄:Ce nanoparticles and CdTe quantum dots takes the advantages of both materials to make a promising nanocomposite scintillator for radiation detection.

Original language	English
Article number	87251Y
Journal	Proceedings of SPIE- The International Society for Optical Engineering
Volume	8725
DOIs	https://doi.org/10.1117/12.2015879
Publication status	Published - 2013
Externally published	Yes
Event	2013 Micro- and Nanotechnology Sensors, Systems, and Applications V Conference - Baltimore, MD, United States Duration: 29 Apr 2013 → 3 May 2013

Keywords

CdTe
Energy transfer
LaPO4: Ce
Nanocomposites
Photoluminescence
Radiation detection
Scintillation luminescence

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10.1117/12.2015879

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@article{6d3adf3538e24ba3b8c164183e41380e,

title = "Luminescence enhancement in LaPO4:Ce/CdTe nanocomposite scintillators",

abstract = "Radiation detection demands new scintillators with high quantum efficiency, high energy resolution, and short luminescence lifetimes. Herein, we report the enhancement in the photoluminescence and x-ray luminescence from CdTe quantum dots in LaPO4:Ce/CdTe nanocomposites and their potential applications for radiation detection. The luminescence enhancement is attributed to energy transfer from LaPO4:Ce to CdTe quantum dots in the nanocomposites. LaPO4:Ce nanoparticles have a high stopping power for radiation but their emission is in the ultraviolet range that is reabsorbed in most polymer host materials. CdTe quantum dots have strong photoluminescence and size-tunable emissions but very weak scintillation emission due to their low stopping power. The combination of LaPO4:Ce nanoparticles and CdTe quantum dots takes the advantages of both materials to make a promising nanocomposite scintillator for radiation detection.",

keywords = "CdTe, Energy transfer, LaPO4: Ce, Nanocomposites, Photoluminescence, Radiation detection, Scintillation luminescence",

author = "Jigang Wang and Ryan Hall and Lun Ma and Wei Chen and Renfei Feng and Ramaswami Sammynaiken and Yongsheng Wang and Dawei He",

year = "2013",

doi = "10.1117/12.2015879",

language = "English",

volume = "8725",

journal = "Proceedings of SPIE- The International Society for Optical Engineering",

issn = "0277-786X",

note = "2013 Micro- and Nanotechnology Sensors, Systems, and Applications V Conference ; Conference date: 29-04-2013 Through 03-05-2013",

}

TY - JOUR

T1 - Luminescence enhancement in LaPO4:Ce/CdTe nanocomposite scintillators

AU - Wang, Jigang

AU - Hall, Ryan

AU - Ma, Lun

AU - Chen, Wei

AU - Feng, Renfei

AU - Sammynaiken, Ramaswami

AU - Wang, Yongsheng

AU - He, Dawei

PY - 2013

Y1 - 2013

N2 - Radiation detection demands new scintillators with high quantum efficiency, high energy resolution, and short luminescence lifetimes. Herein, we report the enhancement in the photoluminescence and x-ray luminescence from CdTe quantum dots in LaPO4:Ce/CdTe nanocomposites and their potential applications for radiation detection. The luminescence enhancement is attributed to energy transfer from LaPO4:Ce to CdTe quantum dots in the nanocomposites. LaPO4:Ce nanoparticles have a high stopping power for radiation but their emission is in the ultraviolet range that is reabsorbed in most polymer host materials. CdTe quantum dots have strong photoluminescence and size-tunable emissions but very weak scintillation emission due to their low stopping power. The combination of LaPO4:Ce nanoparticles and CdTe quantum dots takes the advantages of both materials to make a promising nanocomposite scintillator for radiation detection.

AB - Radiation detection demands new scintillators with high quantum efficiency, high energy resolution, and short luminescence lifetimes. Herein, we report the enhancement in the photoluminescence and x-ray luminescence from CdTe quantum dots in LaPO4:Ce/CdTe nanocomposites and their potential applications for radiation detection. The luminescence enhancement is attributed to energy transfer from LaPO4:Ce to CdTe quantum dots in the nanocomposites. LaPO4:Ce nanoparticles have a high stopping power for radiation but their emission is in the ultraviolet range that is reabsorbed in most polymer host materials. CdTe quantum dots have strong photoluminescence and size-tunable emissions but very weak scintillation emission due to their low stopping power. The combination of LaPO4:Ce nanoparticles and CdTe quantum dots takes the advantages of both materials to make a promising nanocomposite scintillator for radiation detection.

KW - CdTe

KW - Energy transfer

KW - LaPO4: Ce

KW - Nanocomposites

KW - Photoluminescence

KW - Radiation detection

KW - Scintillation luminescence

UR - https://www.scopus.com/pages/publications/84881178954

U2 - 10.1117/12.2015879

DO - 10.1117/12.2015879

M3 - Conference article

AN - SCOPUS:84881178954

SN - 0277-786X

VL - 8725

JO - Proceedings of SPIE- The International Society for Optical Engineering

JF - Proceedings of SPIE- The International Society for Optical Engineering

M1 - 87251Y

T2 - 2013 Micro- and Nanotechnology Sensors, Systems, and Applications V Conference

Y2 - 29 April 2013 through 3 May 2013

ER -

Luminescence enhancement in LaPO₄:Ce/CdTe nanocomposite scintillators

Abstract

Keywords

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