Fabrication of PbS quantum dots and their applications in solar cells based on ZnO nanorod arrays

Dinesh Kumar, Sujeet Chaudhary, Dinesh K. Pandya

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An efficient, inexpensive and large area scalable approach based on sol-gel technique is presented to fabricate quantum dots (QDs) of PbS. Size of the QDs is tuned by the varying the bath concentrations in the range of 50-200 mM. Transmission electron microscopy (TEM) studies confirm the growth of spherically shaped ∼5.6 nm QDs at 50 mM bath concentration. The optical bandgap of the QDs is found to be ∼0.9 eV and corresponds to the size obtained from TEM studies. ZnO/PbS solar cells are fabricated by sensitizing the ZnO nanorods with PbS QDs. The fabricated solar cells demonstrate the highest open circuit voltage ∼200 mV and short circuit current density ∼0.81 μA/cm2.

Original languageEnglish
Title of host publication2nd International Conference on Condensed Matter and Applied Physics, ICC 2017
EditorsManoj Singh Shekhawat, Sudhir Bhardwaj, Bhuvneshwer Suthar
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416482
DOIs
StatePublished - 8 May 2018
Externally publishedYes
Event2nd International Conference on Condensed Matter and Applied Physics, ICC 2017 - Bikaner, India
Duration: 24 Nov 201725 Nov 2017

Publication series

NameAIP Conference Proceedings
Volume1953
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Conference on Condensed Matter and Applied Physics, ICC 2017
Country/TerritoryIndia
CityBikaner
Period24/11/1725/11/17

ASJC Scopus subject areas

  • General Physics and Astronomy

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