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Synthesis and Characterization of Colloidal CuInS2Nanoparticles from a Molecular Single-Source Precursor
Abstract
Thermal decomposition of the molecular single-source precursor (PPh 3 ) 2 CuIn(SEt) 4 in the presence of hexanethiol in dioctylphthalate forms colloidal CuInS 2 at 200 °C. The colloidal solution displays size-dependent quantum confinement behavior in the absorption and photoluminescence spectra. The average size of the nanocrystals can be increased from 2 to 4 nm by raising the reaction temperature from 200 °C to 250 °C. The nanoparticles are capped with hexanethiol ligands; these ligands can be exchanged with trioctylphosphine oxide or pyridine. The nature of the surface-capping ligands has a significant effect on the photoluminescence emission intensity. Investigation of the effect of synthesis parameters and postsynthesis treatments on the optical properties of the nanocrystals leads to the conclusion that the room-temperature emission originates in donor−acceptor defects.
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Dabbousi, B. O., Rodriguez-Viejo, J., Mikulec, F. V., Heine, J. R., Mattoussi, H., Ober, R., Jensen, K. F., & Bawendi, M. G. (1997) · The Journal of Physical Chemistry B · doi:10.1021/jp971091y · Cited by 4,229
Cited by
Enhanced Photocatalytic Hydrogen Evolution over Cu-Doped ZnIn2S4 under Visible Light Irradiation
Shen, S., Zhao, L., Zhou, Z., & Guo, L. (2008) · The Journal of Physical Chemistry C · doi:10.1021/jp804525q · Cited by 332
Optoelectronic Properties of CuInS2 Nanocrystals and Their Origin
Leach, A. D. P., & Macdonald, J. E. (2016) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.5b02211 · Cited by 266
Metadata
- Authors
- Castro, S. L., Bailey, S. G., Raffaelle, R. P., Banger, K. K., & Hepp, A. F.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-07-27
- Volume
- 108
- Issue
- 33
- Pages
- 12429-12435
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2060697840
- Cited by
- 434
- References
- 1
- FWCI
- 6.04
- Type
- journal article
- Language
- en
- Open access
- closed
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