Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles

In this study, the synthesis and the effect of temperature and power excitation towards photoluminescence (PL) emission of colloidal PbS quantum dots (QDs) were reported. Water soluble PbS QDs capped with a mixture of 1-thioglycerol (TGL) and dithioglycerol (DTG) was synthesized via colloidal chemis...

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Main Authors:	Muhammad Safwan Zaini, Mazliana Ahmad Kamarudin, Liew, Josephine Ying Chyi, Shahrul Ainliah Alang Ahmad, Abdul Rahman Mohmad
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13721/ http://journalarticle.ukm.my/13721/ http://journalarticle.ukm.my/13721/1/16%20Muhammad%20Safwan%20Zaini.pdf

id	ukm-13721
recordtype	eprints
spelling	ukm-137212019-11-29T09:06:16Z http://journalarticle.ukm.my/13721/ Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles Muhammad Safwan Zaini, Mazliana Ahmad Kamarudin, Liew, Josephine Ying Chyi Shahrul Ainliah Alang Ahmad, Abdul Rahman Mohmad, In this study, the synthesis and the effect of temperature and power excitation towards photoluminescence (PL) emission of colloidal PbS quantum dots (QDs) were reported. Water soluble PbS QDs capped with a mixture of 1-thioglycerol (TGL) and dithioglycerol (DTG) was synthesized via colloidal chemistry method at room temperature. The PL emission of PbS QDs was investigated under temperature range from 10 K to 300 K and we found that the PL emission blue-shifted when the temperature is increased. From high resolution transmission electron microscopy (HRTEM), the average size of PbS core QDs is determined to be 6 nm and the integrated PL intensity (IPL) versus excitation power density shows the recombination of electrons and holes occur efficiently at low and high temperature for the PbS QDs. Full width half maximum (FWHM) shows a gradual broadening with the increasing temperature due to the interaction of charge carriers with phonons. Penerbit Universiti Kebangsaan Malaysia 2019-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13721/1/16%20Muhammad%20Safwan%20Zaini.pdf Muhammad Safwan Zaini, and Mazliana Ahmad Kamarudin, and Liew, Josephine Ying Chyi and Shahrul Ainliah Alang Ahmad, and Abdul Rahman Mohmad, (2019) Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles. Sains Malaysiana, 48 (6). pp. 1281-1288. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil6_2019/KandunganJilid48Bil6_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	In this study, the synthesis and the effect of temperature and power excitation towards photoluminescence (PL) emission of colloidal PbS quantum dots (QDs) were reported. Water soluble PbS QDs capped with a mixture of 1-thioglycerol (TGL) and dithioglycerol (DTG) was synthesized via colloidal chemistry method at room temperature. The PL emission of PbS QDs was investigated under temperature range from 10 K to 300 K and we found that the PL emission blue-shifted when the temperature is increased. From high resolution transmission electron microscopy (HRTEM), the average size of PbS core QDs is determined to be 6 nm and the integrated PL intensity (IPL) versus excitation power density shows the recombination of electrons and holes occur efficiently at low and high temperature for the PbS QDs. Full width half maximum (FWHM) shows a gradual broadening with the increasing temperature due to the interaction of charge carriers with phonons.
format	Article
author	Muhammad Safwan Zaini, Mazliana Ahmad Kamarudin, Liew, Josephine Ying Chyi Shahrul Ainliah Alang Ahmad, Abdul Rahman Mohmad,
spellingShingle	Muhammad Safwan Zaini, Mazliana Ahmad Kamarudin, Liew, Josephine Ying Chyi Shahrul Ainliah Alang Ahmad, Abdul Rahman Mohmad, Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles
author_facet	Muhammad Safwan Zaini, Mazliana Ahmad Kamarudin, Liew, Josephine Ying Chyi Shahrul Ainliah Alang Ahmad, Abdul Rahman Mohmad,
author_sort	Muhammad Safwan Zaini,
title	Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles
title_short	Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles
title_full	Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles
title_fullStr	Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles
title_full_unstemmed	Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles
title_sort	temperature and power dependence of photoluminescence in pbs quantum dots nanoparticles
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13721/ http://journalarticle.ukm.my/13721/ http://journalarticle.ukm.my/13721/1/16%20Muhammad%20Safwan%20Zaini.pdf
first_indexed	2023-09-18T20:05:29Z
last_indexed	2023-09-18T20:05:29Z
_version_	1777407130006978560

Temperature and power dependence of photoluminescence in PbS quantum dots nanoparticles

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