Investigation of Dark Current Shot Noise in CdS/CuInSe2-Photodiodes with a Lock-in Technique
نویسنده
چکیده
A very Jow noise measurement system is described with a noise temperature of 0.5 K consisting of a mercury wetted reed switch, low noise preamplifier, and synchronous detector. The set-up can te tuned from 20 kHz up to 3.15 GHz corresponding to the bandwidth of relay and prcamplifieI'. The shot noise of CdSjCulnSe2-photodiode,s has been investigated. Deviations from the expected behaviour indicate avalanche effects, and the existence of a technologically entailed bypass resistance in parallel t{) the junction.
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