Gigantic enhancement in response and reset time of ZnO UV nanosensor by utilizing Schottky contact and surface functionalization

AUTOR(ES)

Zhou, Jun

FONTE

American Institute of Physics

RESUMO

UV response of ZnO nanowire nanosensor has been studied under ambient condition. By utilizing Schottky contact instead of Ohmic contact in device fabrication, the UV sensitivity of the nanosensor has been improved by four orders of magnitude, and the reset time has been drastically reduced from ∼417 to ∼0.8 s. By further surface functionalization with function polymers, the reset time has been reduced to ∼20 ms even without correcting the electronic response of the measurement system. These results demonstrate an effective approach for building high response and fast reset UV detectors.

Documentos Relacionados

• Optical absorption enhancement in sensitized ZnO nanorods for solar cells
• Effects of precursor concentration and reaction time on sonochemically synthesized ZnO nanoparticles
• Descoloração e Mineralização de Corantes Reativos por Processo Fotocatalítico Utilizando ZnO e Radiação UV
• Influence of ZnO Nanoparticles and a Non-Nano ZnO on Survival and Reproduction of Earthworm and Springtail in Tropical Natural Soil
• Photodegradation of Rhodamine B catalyzed by ZnO pellets