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Excellent growth of ZnS shell on Ag2S QDs using a photochemical-microwave irradiation approach and fabrication of their indoor QD thin film solar cells
Vali E Asr Univ Rafsanjan, Dept Phys, Rafsanjan, Iran.
Vali E Asr Univ Rafsanjan, Dept Phys, Rafsanjan, Iran.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.ORCID iD: 0000-0001-9358-8277
Vali E Asr Univ Rafsanjan, Dept Phys, Rafsanjan, Iran.
2018 (English)In: Materials technology (New York, N.Y.), ISSN 1066-7857, E-ISSN 1753-5557, Vol. 33, no 12, p. 784-792Article in journal (Refereed) Published
Abstract [en]

In this report, a new two pots method using microwave-photochemical approaches was suggested for the fabrication of Ag2S@ZnS core-shells. UV-Vis and photoluminescence spectroscopies clearly proved the growth of ZnS shell on Ag2S cores. X-ray diffraction, Energy dispersive x-ray spectroscopy and transmission electron microscopy also indicated the formation of core-shell structure. To identify excellence growth of ZnS shell, Ag2S@ZnS core-shells were implemented for the fabrication of thin film solar cells. The fabricated cells showed a J-V character with 0.4%, 1 mA.cm(-2) and 0.43V and 54% as efficiency, J(SC), V-OC and fill factor, respectively. The cells showed also an increasing efficiency up to 0.8% upon the decrease of incident solar intensity to 10% of its standard. The results proved the cells are stable under sun light illumination that is promising for environmentally friendly fabrication of QD thin film solar cells.

Place, publisher, year, edition, pages
TAYLOR & FRANCIS LTD , 2018. Vol. 33, no 12, p. 784-792
Keywords [en]
Ag2S@ZnS core-shells, Photoluminescence, Solar cells, Photochemical synthesis, Microwave irradiation
National Category
Materials Chemistry Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-364486DOI: 10.1080/10667857.2018.1503781ISI: 000443904600003OAI: oai:DiVA.org:uu-364486DiVA, id: diva2:1259288
Available from: 2018-10-29 Created: 2018-10-29 Last updated: 2018-10-29Bibliographically approved

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Johansson, Erik

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