Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
817566 | Composites Part B: Engineering | 2015 | 5 Pages |
Abstract
Transparent colloidal ZnO quantum-dot (QD)/graphene nanocomposites were formed on poly(ethylene terephthalate) (PET) substrates. Ultraviolet (UV)–visible absorption spectra showed a shoulder peak around 350 nm corresponding to the absorption of ZnO QDs. Optical transmittance of the ZnO QD/graphene/PET multilayer was approximately 80%. High-resolution transmission electron microscopy images showed that the ZnO QDs were distributed along the circumferences of the surfaces on the graphene layers. Current–voltage and current–time measurements on the UV photodetector after bending at 300 K exhibited the ON/OFF switching states and stability resulting from the light-induced conductivity of the flexible graphene layer.
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Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Dong Ick Son, Hee Yeon Yang, Tae Whan Kim, Won Il Park,