Organic bistable devices based on core/shell CdSe∕ZnS nanoparticles embedded in a conducting poly(N-vinylcarbazole) polymer layer

Current-voltage measurements on the Al/[CdSe∕ZnS nanoparticles embedded in a hole-transporting poly(N-vinylcarbazole) (PVK) layer]/indium tin oxide (ITO)/glass structures at 300K showed a nonvolatile electrical bistability behavior. Capacitance-voltage (C-V) measurements on the Al/[CdSe∕ZnS nanopart...

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Bibliographic Details
Published in:Applied physics letters 2007-09, Vol.91 (12)
Main Authors: Li, Fushan, Son, Dong-Ik, Seo, Seung-Mi, Cha, Han-Moe, Kim, Hyuk-Ju, Kim, Bong-Jun, Jung, Jae Hun, Kim, Tae Whan
Format: Article
Language:English
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Summary:Current-voltage measurements on the Al/[CdSe∕ZnS nanoparticles embedded in a hole-transporting poly(N-vinylcarbazole) (PVK) layer]/indium tin oxide (ITO)/glass structures at 300K showed a nonvolatile electrical bistability behavior. Capacitance-voltage (C-V) measurements on the Al/[CdSe∕ZnS nanoparticles embedded in a PVK layer]/ITO/glass structures at 300K showed a metal-insulator-semiconductor behavior with a flatband voltage shift due to the existence of the CdSe∕ZnS nanoparticles, indicative of trapping, storing, and emission of charges in the electronic states of the CdSe nanoparticles. Operating mechanisms for the Al/[CdSe∕ZnS nanoparticles embedded in the PVK layer]/ITO/glass devices are described on the basis of the C-V results.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2783189