The photoluminescence properties of CuInS2 and AgInS22 nanocrystals synthesized in aqueous solutions

L. Borkovska, A. Romanyuk, V. Strelchuk, Yu Polishchuk, V. Kladko, O. Stroyuk, A. Raevskaya, T. Kryshtab

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

5 Scopus citations

Abstract

The results of investigations of the AgInS22 and CuInS2 nanocrystals (NCs) by the photoluminescence (PL), PL excitation (PLE), optical absorption, Raman scattering and X-ray diffraction (XRD) methods are presented. The NCs were synthesized under stoichiometric conditions in aqueous solutions in the presence of aliphatic mercapoacids and transferred in polymer films of gelatin. The XRD patterns and Raman spectra indicated formation of the AgInS22 and CuInS2 NCs of chalcopyrite phase mainly of the average size of about 4 and 2 nm, respectively. The PL spectra of the NCs showed intense defect-related band being much broader for the AgInS22 crystallites. The PLE spectra demonstrated strong dependence on the emission position in the PL spectrum. The lowtemperature PL study showed that the PL band of the AgInS22 NCs consisted of two components originated from the ensembles of the NCs of different crystal structure presumably of the chalcopyrite and cubic phases.

Translated title of the contributionLas propiedades de fotoluminiscencia de los nanocristales CuInS 2 y AgInS 2 sintetizados en soluciones acuosas
Original languageEnglish
Title of host publicationState-of-the-Art Program on Compound Semiconductors 57, SOTAPOCS 2015
EditorsY. L. Wang, V. Chakrapani, T. J. Anderson, J. M. Zavada, D. C. R. Abernathy, J. K. Hite
PublisherElectrochemical Society Inc.
Pages171-179
Number of pages9
Edition7
ISBN (Electronic)9781607685975
DOIs
StatePublished - 2015
EventSymposium on State-of-the-Art Program on Compound Semiconductors 57, SOTAPOCS 2015 - 227th ECS Meeting - Chicago, United States
Duration: 24 May 201528 May 2015

Publication series

NameECS Transactions
Number7
Volume66
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on State-of-the-Art Program on Compound Semiconductors 57, SOTAPOCS 2015 - 227th ECS Meeting
Country/TerritoryUnited States
CityChicago
Period24/05/1528/05/15

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