Abstract
HgTe and HgTe/CdTe core-shell structured nanoparticles were synthesized by the colloidal method. The photoluminescence (PL) spectrum of a HgTe/CdTe nanoparticle film exhibited an exciton peak at 700 nm, which was blue-shifted by about 400 nm for the HgTe nanoparticle film. The current-voltage curves and photoresponse of the HgTe/CdTe nanoparticle film were compared with those of the HgTe nanoparticle film. When the film is exposed to light, the current of the HgTe/CdTe nanoparticle film decreases in the ambient air while increasing in vacuum. Finally, the temperature dependence of the photocurrent is discussed in this paper.
Original language | English |
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Pages (from-to) | 5703-5706 |
Number of pages | 4 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 44 |
Issue number | 7 B |
DOIs | |
Publication status | Published - 2005 Jul 26 |
Keywords
- Charge transport
- Core-shell
- HgTe/CdTe
- Nanoparticle
- Photocurrent
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)