Issue 32, 2014

Continuous synthesis of colloidal chalcopyrite copper indium diselenide nanocrystal inks

Abstract

A continuous synthetic method in a micro-tubular reactor is introduced for synthesizing mono-disperse and solution-stable chalcopyrite colloidal copper indium diselenide nanocrystal (CuInSe2 NC) inks with potential scalability. It was found that the morphologies of the CuInSe2 NCs were dependent on the Cu/In/Se composition. The NC morphology changed from spherical to hexagonal to trigonal with increasing In or Se content, whereas trigonal morphologies synthesized at high temperature yielded chalcopyrite CuInSe2 NCs. A laboratory-scale photovoltaic device with 1.9% efficiency under AM1.5G illumination was also fabricated to verify the utility of these inks.

Graphical abstract: Continuous synthesis of colloidal chalcopyrite copper indium diselenide nanocrystal inks

Article information

Article type
Communication
Submitted
23 Feb 2014
Accepted
21 Mar 2014
First published
25 Mar 2014

RSC Adv., 2014,4, 16418-16424

Author version available

Continuous synthesis of colloidal chalcopyrite copper indium diselenide nanocrystal inks

K. Kim, R. P. Oleksak, C. Pan, M. W. Knapp, P. B. Kreider, G. S. Herman and C. Chang, RSC Adv., 2014, 4, 16418 DOI: 10.1039/C4RA01582G

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