Voltar

Seminário de Ótica da próxima terça-feira, 01 de outubro de 2019

O Seminário de Ótica da próxima terça-feira, 01 de outubro (14 horas, no Auditório do DF/UFPE) será apresentado pelo Pós-doutorando Avishek Das (Departamento de Física/UFPE).

O Seminário de Ótica da próxima terça-feira, 01 de outubro (14 horas, no Auditório do DF/UFPE) será apresentado pelo Pós-doutorando Avishek Das (Departamento de Física/UFPE).

 

TítuloDesign, Fabrication and Characterization of ZnO Nanostructure Based Photodetectors

 

 

Resumo: The current research work has emphasized on optimizing the growth, design, and fabrication of ZnO nanostructure-based photodetectors by employing Chemical Bath Deposition (CBD) technique. The work includes the morphological engineering of ZnO nanostructure by tuning the CBD growth parameters. The electronic properties of single n-ZnO nanowires (NWs) /p-Si heterojunction diode-based nano-rectifier have been investigated. The effect of native defects in ZnO NWs on the heterojunction properties has been investigated and is observed to be highly temperature-dependent. The annealing effects on the defects and the relevant UV photodetection properties are studied. The overall study and subsequent observations suggest that the oxygen vacancy related defects are essential for device and UV photodetection applications with ZnO NWs. The thermal treatment of as-grown ZnO NWs is not recommended for improving UV photodetection efficiency.

Data da última modificação: 27/09/2019, 10:37