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Title: Synthesis of AgInS 2 nanocrystal ink and its photoelectrical application
Authors: Peng, S.
Zhang, S.
Mhaisalkar, S.G.
Ramakrishna, S. 
Issue Date: 28-Jun-2012
Citation: Peng, S., Zhang, S., Mhaisalkar, S.G., Ramakrishna, S. (2012-06-28). Synthesis of AgInS 2 nanocrystal ink and its photoelectrical application. Physical Chemistry Chemical Physics 14 (24) : 8523-8529. ScholarBank@NUS Repository.
Abstract: This paper reports a hot-injection method of preparing AgInS 2 nanocrystals with different sizes and morphologies, starting with the capping agents of oleylamine and dodecylthiol, and varying the reaction conditions. The effects of the temperature and time on the growth of AgInS 2 nanocrystals are investigated. These parameters have a tremendous impact on the size and morphology of the nanocrystals, allowing the controlled synthesis of shapes including nanoparticles and nanorods. It has been found that the size of the nanoparticles and nanorods can be controlled by changing the time of nanocrystal growth. The evolution from nanoparticles to nanorods can be controlled by the reaction temperature. The possible formation mechanism and growth process of the AgInS 2 nanocrystals are discussed based on the experimental results. The AgInS 2 nanocrystal ink with a bandgap of 1.90 eV can produce crack-free films. As a proof-of-concept, thin film solar cells made by using such AgInS 2 films as absorber layers are tested for their viability as a type of solar cell material and are found to exhibit a measurable photovoltaic response. This journal is © the Owner Societies 2012.
Source Title: Physical Chemistry Chemical Physics
ISSN: 14639076
DOI: 10.1039/c2cp40848a
Appears in Collections:Staff Publications

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