Voltage Division Position Sensitive Detectors Based on Photoconductive Materials- Part I: Principle of Operation

• Published in: IEEE sensors journal Vol. 8; no. 2; pp. 188 - 193
• Main Authors: Salvatori, S., Mazzeo, G., Conte, G.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-02-2008; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Contact; Current measurement; Detectors; Division; Electric potential; Electrodes; Mathematical analysis; One-dimensional position sensitive detector; optical position measurement; Photoconducting devices; Photoconducting materials; Photoconductivity; Photovoltaic effects; Position measurement; Position sensitive; Position sensitive particle detectors; Sensors; Transfer functions; Voltage
• ISSN: 1530-437X; 1558-1748
• DOI: 10.1109/JSEN.2007.913014

A simple contact structure is proposed for the realization of position sensitive detectors based on a voltage division principle in which the sensors operate in a photoconductive regime. The transfer function of the system is calculated by a detailed analysis of the operative principle of the device. Moreover, the expected performances of the photodetectors are discussed as a function of the main system parameters, underlying the benefits due to the adopted design.