Summary
This work shows some experimental results concerning the flicker noise (1/f α) behaviour in semiconductor thin films of PbTe obtained by the radiofrequency sputtering technique in dependence of suitable annealing processes. Noise measurements have been carried out, before and after annealing, at a temperature close to 78.8 K, where infra-red detectors, made by this material, usually work. Further, results relative to the following structures: Au-PbTe-Au and In-PbTe-In, are given and discussed.
Riassunto
In questo lavoro si presentano e discutono alcuni risultati sperimentali relativi alla variazione del rumore in eccesso (1/f α) rilevata in film sottili semiconduttori di PbTe ottenuti tramite sputtering a radiofrequenza in conseguenza di opportuni trattamenti termici. Le misure di rumore sono state eseguite, prima e dopo i trattamenti termici, alla temperatura di 78.8 K, temperatura alla quale i rivelatori fotoconduttivi per l'infrarosso fatti con tale materials normalmente lavorano. Le strutture utilizzate e confrontate sono del tipo Au-PbTe-Au e In-PbTe-In.
Резюме
В работе приводятся и обсуждаются некоторые экспериментальные результаты, относящиеся к изменению шума 1/f α в полупроводниковых тонких пленках PbTe, полученных с помощью радиочастотной техники напыления, в зависимости от соответствующих процессов отжига. Измерения шума проводятся до и после отжига при темпертуре близкой к 78.8 К, при которой обычно работают инфракрасные детекторы, сделанные из такого материала. Приводятся и обсуждаются редультаты, относящиеся с следующнм структурам: Au-PbTe-Au и In-PbTe-In.
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References
F. N. Hooge:Physica (The Hague),42, 331 (1969).
W. H. Fonger:A determinayion of 1/f noise sources in semiconductor diodes and transistors, inTransistor, Vol.1 (Princeton, N. J., 1956), p. 239.
S. T. Hsu, D. J. Fitzgerald andA. S. Grove:Appl. Phys. Lett.,12, 287 (1968).
A. L. McWorter:1/f noise and related surface in germanium, MIT Lincoln Laboratory, Lexington, Mass., Report 80 (1965).
C. T. Sah andF. H. Hilscher:Phys. Rev. Lett.,17, 956 (1966).
R. F. Voss andJ. Clarke:Phys. Rev. B,13, 556 (1973).
Noise in physical systems, inProceedings of the Fifth International Conference on Noise, Bad Nauheim, March 13–16, 1978.
G. Balestrino, A. D'Amico, G. Petrocco andA. Grilli:Infrared Phys.,19, 245 (1979).
C. Corsi:Appl. Phys. Lett.,24, 137 (1974).
R. Muller:Generation-recombination noise, inProceedings of the Fifth International Conference on Noise, Bad Neuheim, March 13–16, 1978.
H. I. Hanafi andA. Van Der Ziel:Solid-State Electron. 21, 1019 (1979).
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D'Amico, A., Cappuccio, G., Petrocco, G. et al. Measurements of low-frequency 1/f α noise in semiconductor polycrystalline thin films of PbTe. Nuov Cim B 53, 455–461 (1979). https://doi.org/10.1007/BF02739908
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DOI: https://doi.org/10.1007/BF02739908