An Overview of CMOS Photodetectors Utilizing Current-Assistance for Swift and Efficient Photo-Carrier Detection

This review paper presents an assortment of research on a family of photodetectors which use the same base mechanism, current assistance, for the operation. Current assistance is used to create a drift field in the semiconductor, more specifically silicon, in order to improve the bandwidth and the q...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2021-07, Vol.21 (13), p.4576
Main Authors: Jegannathan, Gobinath, Seliuchenko, Volodymyr, Van den Dries, Thomas, Lapauw, Thomas, Boulanger, Sven, Ingelberts, Hans, Kuijk, Maarten
Format: Article
Language:English
Subjects:
avalanche
Bandwidths
CAPD
CMOS
Complementary metal oxide semiconductors
current-assistance
demodulation
Detectors
Diodes
Efficiency
Electric fields
fast time-gated cameras
Optical receivers
Photometers
Quantum efficiency
Review
Sensors
Velocity
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Summary:This review paper presents an assortment of research on a family of photodetectors which use the same base mechanism, current assistance, for the operation. Current assistance is used to create a drift field in the semiconductor, more specifically silicon, in order to improve the bandwidth and the quantum efficiency. Based on the detector and application, the drift field can be static or modulated. Applications include 3D imaging (both direct and indirect time-of-flight), optical receivers and fluorescence lifetime imaging. This work discusses the current-assistance principle, the various photodetectors using this principle and a comparison is made with other state-of-the-art photodetectors used for the same application.
ISSN:1424-8220
1424-8220
DOI:10.3390/s21134576