Abstract
Photoresponsivity and photocurrent according to gate voltages and various light power of 532nm laser in Germanium sulfide (GeS) phototransistor, which is noticed for its high photoresponsivity, is observed. The experimental result of photocurrent by light power was fitted with power function, and the exponent was used as a key parameter for speculation of photocurrent generation mechanisms. When the transistor is on, the photogating effect was considered as a main mechanism of photocurrent generation. There are two causes for photogating effect; One is a gating effect from captured carriers on trap state, and the other is from keeping charge neutrality resulting from the difference of electron and hole mobilities. And when the transistor is off, even though there is also a photogating effect, photocurrent from photoconduction effect is a dominant mechanism.
Original language | English |
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Title of host publication | 9th International Conference on Information and Communication Technology Convergence |
Subtitle of host publication | ICT Convergence Powered by Smart Intelligence, ICTC 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 733-735 |
Number of pages | 3 |
ISBN (Electronic) | 9781538650400 |
DOIs | |
Publication status | Published - 2018 Nov 16 |
Event | 9th International Conference on Information and Communication Technology Convergence, ICTC 2018 - Jeju Island, Korea, Republic of Duration: 2018 Oct 17 → 2018 Oct 19 |
Publication series
Name | 9th International Conference on Information and Communication Technology Convergence: ICT Convergence Powered by Smart Intelligence, ICTC 2018 |
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Other
Other | 9th International Conference on Information and Communication Technology Convergence, ICTC 2018 |
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Country/Territory | Korea, Republic of |
City | Jeju Island |
Period | 18/10/17 → 18/10/19 |
Bibliographical note
Funding Information:This research was supported by the MSIT(Ministry of Science and ICT), Korea, under the ITRC(Information Technology Research Center) support program(IITP-2018-2015-0-00385) supervised by the IITP(Institute for Information & communications Technology Promotion)
Publisher Copyright:
© 2018 IEEE.
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
- Information Systems
- Information Systems and Management
- Artificial Intelligence