1. Efficient solution route to transparent ZnO semiconductor films using colloidal nanocrystals
- Author
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Satoshi Suehiro, Keisuke Horita, Azzah Dyah Pramata, Masayoshi Yuasa, Yoichi Ishiwata, Kengo Shimanoe, and Tetsuya Kida
- Subjects
ZnO ,Nanocrystals ,Solar cells ,Thin films ,Cu2ZnSnS4 ,Clay industries. Ceramics. Glass ,TP785-869 - Abstract
ZnO nanocrystals (NCs) were synthesized by heating Zn (II) acetylacetonate in oleic acid/oleylamine in the presence of 1,2-hexadecanediol at 220 °C. Transmission electron microscopy (TEM) and dynamic light scattering (DLS) measurements revealed the formation of monodispersed ZnO NCs of ca. 7 nm. ZnO NC assembled films were fabricated on a glass substrate by deposition with the colloidal ZnO NCs dispersed in toluene. The film composed of the NCs showed good optical transparency in the visible to near-infrared region. A device coupling the ZnO NC film with a p-type Cu2ZnSnS4 (CZTS) NC film exhibited an obvious diode-like current–voltage behavior. The results suggest that the transparent ZnO film has a potentiality to be used for an n-type window layer in some optoelectronic applications.
- Published
- 2016
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