Synthesis of single phase chalcopyrite CuIn{sub 1−x}Ga{sub x}Se{sub 2} (0 ≤ x ≤ 1) nanoparticles by one-pot method

Journal Article · Sat Mar 01 00:00:00 EST 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2013.12.041· OSTI ID:22348606

Han, Zhaoxia ^[1]; Zhang, Dawei ^[1]; Chen, Qinmiao; Hong, Ruijin; Tao, Chunxian; Huang, Yuanshen; Ni, Zhengji; Zhuang, Songlin ^[1]

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1. Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No. 516 JunGong Road, Shanghai 200093 (China)

Graphical abstract: - Highlights: • A facile and rapid one-pot synthesis method is presented. • The effects of various Ga contents are investigated. • Single phase chalcopyrite CuIn{sub 1−x}Ga{sub x}Se{sub 2} nanoparticles can be easily synthesized. • The phase formation sequence is from CuSe to CuGaSe{sub 2}, then to CuIn{sub 1−x}Ga{sub x}Se{sub 2}. • The possible reaction mechanism of CuIn{sub 1−x}Ga{sub x}Se{sub 2} nanoparticles is proposed. - Abstract: Single phase chalcopyrite and near stoichiometric CuIn{sub 1−x}Ga{sub x}Se{sub 2} (0 ≤ x ≤ 1) nanoparticles were successfully synthesized by using a facile and rapid one-pot method. The effects of various Ga contents on crystal phase, morphology, element composition and absorption spectrum of the as-synthesized CuIn{sub 1−x}Ga{sub x}Se{sub 2} nanoparticles were investigated in detail. The XRD and Raman patterns indicated that the as-synthesized nanoparticles had a single phase chalcopyrite structure, and the diffraction peaks shifted toward larger diffraction angles or higher frequencies with increasing Ga content. The FE-SEM images showed that the as-synthesized nanoparticles were polydispersed in both size and shape, and the nanoparticles with higher Ga content were more prone to aggregate. The Vis–IR absorption spectra showed strong absorption in the entire visible light region. The estimated band gap increased from 1.00 eV to 1.68 eV as Ga content increasing.

• OSTI ID: 22348606
• Journal Information: Materials Research Bulletin, Vol. 51; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
ABSORPTION SPECTRA
CHALCOPYRITE
COPPER SELENIDES
CRYSTALS
EV RANGE
NANOPARTICLES
NANOSTRUCTURES
OPTICAL PROPERTIES
PEAKS
REACTION KINETICS
SCANNING ELECTRON MICROSCOPY
SYNTHESIS
X-RAY DIFFRACTION