Response time of amorphous selenium based photodetector driven by diamond cold cathode
| Autor: | Noritoshi Miyachi, Toru Takahashi, Reina Umezawa, Ken Okano, Kunitaka Enomoto, Tomoaki Masuzawa, Takatoshi Yamada, Masamune Tsuzaki, Ryu Mori, Joshua D. John, Ichitaro Saito |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Physics::Instrumentation and Detectors business.industry Time constant Photodetector Diamond Response time 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Cathode law.invention law 0103 physical sciences engineering Physics::Accelerator Physics Cold cathode Optoelectronics Quantum efficiency 0210 nano-technology business Common emitter |
| Zdroj: | 2018 31st International Vacuum Nanoelectronics Conference (IVNC). |
| DOI: | 10.1109/ivnc.2018.8520023 |
| Popis: | We investigated the response time of a-Se based vacuum photodetector driven by diamond cold cathode. To characterize the response time, the a-Se surface was illuminated using pulsating white light and the variation of emission current from diamond field emitter was measured on an oscilloscope. The results show that there is a relationship between the response time, measured through the time constant, and the quantum efficiency. As the quantum efficiency increases, the detector time constant decreases. |
| Databáze: | OpenAIRE |
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