https://scholars.lib.ntu.edu.tw/handle/123456789/607187| Title: | Enhanced Photo Sensing and Lowered Power Consumption in Concentric MIS Devices by Monitoring Outer Ring Open-Circuit Voltage with Biased Inner Gate | Authors: | Huang C.-Y Hwu J.-G. JENN-GWO HWU |
Keywords: | Metal-insulator-semiconductor (MIS) structure;photodetector;responsivity;sensitivity;sensor;Electric power utilization;Metal insulator boundaries;MIS devices;Open circuit voltage;Timing circuits;Asymmetric coupling;Metal insulator semiconductor structures;Photo-sensors;Ring opens;Sensing signals;Weak lights;Image enhancement | Issue Date: | 2021 | Journal Volume: | 68 | Journal Issue: | 7 | Start page/Pages: | 3417-3423 | Source: | IEEE Transactions on Electron Devices | Abstract: | Concentric metal-insulator-semiconductor (MIS) structure is used as a photo sensor. Generally, the outer ring acts as gate and the inner circle acts as sensor. In this article, by changing the sensing method from measuring light current to measuring open-circuit voltage of floating sensor, power consumption is considerably lowered. Moreover, by exchanging conventional role of inner device and outer ring, photo-sensitivity under extremely weak light is also highly enhanced, and it results from asymmetric coupling effect of inner circle and outer ring. Furthermore, our device shows great performance as well when using light current as alternative sensing signal in the conventional way. ? 1963-2012 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107371374&doi=10.1109%2fTED.2021.3082813&partnerID=40&md5=eb91ce91bab388e3af14d46069c3f6e5 https://scholars.lib.ntu.edu.tw/handle/123456789/607187 |
ISSN: | 00189383 | DOI: | 10.1109/TED.2021.3082813 |
| Appears in Collections: | 電機工程學系 |
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