Journal of Luminescence, volume 131, issue 12, pages 2792-2802
Study of steady state and time resolved photoluminescence of thiol capped CdS nanocrystalline powders dispersed in N,N-dimethylformamide
Publication type: Journal Article
Publication date: 2011-12-01
Journal:
Journal of Luminescence
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 3.6
ISSN: 00222313
General Chemistry
Biochemistry
Biophysics
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
The microwave (MW) assisted synthesis of thiol capped cadmium sulfide (CdS) nanocrystallites/quantum dots (QDs) was performed through the reaction of cadmium acetate with thiourea in N,N-dimethylformamide (DMF) by keeping the MW irradiation time fixed (40 s) in the presence of a thiol containing capping agent. Three capping agents, namely, benzyl mercaptan (BM), 1-butanethiol (BT) and 2-mercaptoethanol (ME) were used. The concentration of the precursors was varied to check the change in the average size of the thiol capped CdS nanocrystals formed. The nanocrystallites were characterized by usual procedure. The UV–vis absorption spectra and the photoluminescence (PL) spectra of the CdS nanocrystalline powders dispersed in DMF were studied. It was observed that with increase in concentration of the capping agent (BM), there is a shift in the nature of emission (PL) from trap associated PL to the band edge luminescence in the case of BM capped CdS nanocrystalline powders dispersed in DMF possibly due to better surface passivation. The relative PL quantum yield of the thiol capped CdS nanocrystalline powders dispersed in DMF was calculated under various experimental conditions. Time-correlated single-photon counting experiments were performed to study the time-resolved photoluminescence of the CdS nanocrystalline powders dispersed in DMF. The observed emission decay profiles have been simulated using the multiexponential model. The emission decay profiles for thiol capped CdS nanocrystalline powders dispersed in DMF depend on the nature of the capping agents (thiols) used to passivate the CdS nanocrystallites. The time resolved PL studies show that the average values of PL lifetime are related to the size and size distribution of the prepared thiol capped CdS nanocrystallites.
Top-30
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Citations by publishers
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Springer Nature
5 publications, 20%
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5 publications, 20%
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5 publications, 20%
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5 publications, 20%
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2 publications, 8%
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1 publication, 4%
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1 publication, 4%
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American Chemical Society (ACS)
1 publication, 4%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Majumder M., Karan S., Mallik B. Study of steady state and time resolved photoluminescence of thiol capped CdS nanocrystalline powders dispersed in N,N-dimethylformamide // Journal of Luminescence. 2011. Vol. 131. No. 12. pp. 2792-2802.
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Majumder M., Karan S., Mallik B. Study of steady state and time resolved photoluminescence of thiol capped CdS nanocrystalline powders dispersed in N,N-dimethylformamide // Journal of Luminescence. 2011. Vol. 131. No. 12. pp. 2792-2802.
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TY - JOUR
DO - 10.1016/j.jlumin.2011.06.059
UR - https://doi.org/10.1016/j.jlumin.2011.06.059
TI - Study of steady state and time resolved photoluminescence of thiol capped CdS nanocrystalline powders dispersed in N,N-dimethylformamide
T2 - Journal of Luminescence
AU - Majumder, Manisree
AU - Karan, Santanu
AU - Mallik, Biswanath
PY - 2011
DA - 2011/12/01 00:00:00
PB - Elsevier
SP - 2792-2802
IS - 12
VL - 131
SN - 0022-2313
ER -
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@article{2011_Majumder,
author = {Manisree Majumder and Santanu Karan and Biswanath Mallik},
title = {Study of steady state and time resolved photoluminescence of thiol capped CdS nanocrystalline powders dispersed in N,N-dimethylformamide},
journal = {Journal of Luminescence},
year = {2011},
volume = {131},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016/j.jlumin.2011.06.059},
number = {12},
pages = {2792--2802},
doi = {10.1016/j.jlumin.2011.06.059}
}
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MLA
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Majumder, Manisree, et al. “Study of steady state and time resolved photoluminescence of thiol capped CdS nanocrystalline powders dispersed in N,N-dimethylformamide.” Journal of Luminescence, vol. 131, no. 12, Dec. 2011, pp. 2792-2802. https://doi.org/10.1016/j.jlumin.2011.06.059.