Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix

Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix

Wet-chemically synthesized CdSe seeded CdS nanotetrapods incorporated into silica matrices have been explored as high performance nanocrystal-based optical amplifiers. Varying the physical dimensions of the tetrapods allowed for room temperature biexcitonic amplified spontaneous emission (ASE) at wa...

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Main Authors: Liao, Yile, Xing, Guichuan, Mishra, Nimai, Sum, Tze Chien, Chan, Yinthai
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/97461
http://hdl.handle.net/10220/10665
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-974612020-03-07T12:34:44Z Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix Liao, Yile Xing, Guichuan Mishra, Nimai Sum, Tze Chien Chan, Yinthai School of Physical and Mathematical Sciences Wet-chemically synthesized CdSe seeded CdS nanotetrapods incorporated into silica matrices have been explored as high performance nanocrystal-based optical amplifiers. Varying the physical dimensions of the tetrapods allowed for room temperature biexcitonic amplified spontaneous emission (ASE) at wavelengths corresponding to either the CdSe core or CdS arms, while higher pump intensities resulted in ASE from a higher CdSe excited state. These results collectively indicate that such heterostructured tetrapods can facilitate tunable, multiple-wavelength lasing across a wide spectral range from a single nanostructure. 2013-06-25T08:05:54Z 2019-12-06T19:42:59Z 2013-06-25T08:05:54Z 2019-12-06T19:42:59Z 2012 2012 Journal Article Liao, Y., Xing, G., Mishra, N., Sum, T. C., & Chan, Y. (2012). Low Threshold, Amplified Spontaneous Emission from Core-Seeded Semiconductor Nanotetrapods Incorporated into a Sol-Gel Matrix. Advanced Materials, 24(23), OP159-OP164. 0935-9648 https://hdl.handle.net/10356/97461 http://hdl.handle.net/10220/10665 10.1002/adma.201200121 en Advanced materials © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
description Wet-chemically synthesized CdSe seeded CdS nanotetrapods incorporated into silica matrices have been explored as high performance nanocrystal-based optical amplifiers. Varying the physical dimensions of the tetrapods allowed for room temperature biexcitonic amplified spontaneous emission (ASE) at wavelengths corresponding to either the CdSe core or CdS arms, while higher pump intensities resulted in ASE from a higher CdSe excited state. These results collectively indicate that such heterostructured tetrapods can facilitate tunable, multiple-wavelength lasing across a wide spectral range from a single nanostructure.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Liao, Yile
Xing, Guichuan
Mishra, Nimai
Sum, Tze Chien
Chan, Yinthai
format Article
author Liao, Yile
Xing, Guichuan
Mishra, Nimai
Sum, Tze Chien
Chan, Yinthai
spellingShingle Liao, Yile
Xing, Guichuan
Mishra, Nimai
Sum, Tze Chien
Chan, Yinthai
Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
author_sort Liao, Yile
title Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
title_short Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
title_full Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
title_fullStr Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
title_full_unstemmed Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
title_sort low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
publishDate 2013
url https://hdl.handle.net/10356/97461
http://hdl.handle.net/10220/10665
_version_ 1681034849026048000

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