Optical Properties of ZnO Nanocrystallines Photovoltaic UV Detector
| Autor: | Faten Emad, Sudad S. Ahmed, Abdullah M. Suhail, Omar A. Ibrahim |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Silicon business.industry Mechanical Engineering Detector chemistry.chemical_element Heterojunction Radiation Condensed Matter Physics medicine.disease_cause Capacitance chemistry Mechanics of Materials medicine Optoelectronics General Materials Science Nitrogen laser business Ultraviolet Voltage |
| Zdroj: | Materials Science Forum. 792:47-53 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.792.47 |
| Popis: | Zinc Oxide (ZnO) /porous-silicon photovoltaic device was fabricated to detect fast ultraviolet (UV) radiation pulses. The photovoltaic UV detector, based on the deposition of the ZnO wide-band gap semiconductor material on nanospikes silicon layer to form a heterojunction, has fast response time to the UV pulses. The current voltage characteristic, the capacitance variation with the applied voltage and the ideality factor of the heterojunction were studied. The operation of the detector under the reverse bias of-2 volts has successfully detected an ultra-fast nitrogen laser pulses at 385 (nm). |
| Databáze: | OpenAIRE |
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