@Article{BarrosAbraRapp:2006:ElOpPr,
author = "Barros, A. S. and Abramof, Eduardo and Rappl, Paulo Henrique de
Oliveira",
affiliation = "Instituto Nacional de Pesquisas Espaciais, Laborat{\'o}rio
Associado de Sensores e Materiais, (INPE, LAS) and Instituto
Nacional de Pesquisas Espaciais, Laborat{\'o}rio Associado de
Sensores e Materiais, (INPE, LAS) and Instituto Nacional de
Pesquisas Espaciais, Laborat{\'o}rio Associado de Sensores e
Materiais, (INPE, LAS)",
title = "Electrical and optical properties of PbTe p-n junction infrared
sensors",
journal = "Journal of Applied Physics",
year = "2006",
volume = "99",
number = "024904",
month = "Jan",
keywords = "LEAD-CHALCOGENIDE, SILICON, ARRAYS, DETECTORS.",
abstract = "Lead telluride mesa diodes were fabricated from a series of p-n
junctions grown on 111 BaF2 substrates, in which the hole
concentration p was kept constant at 1017 cm\−3 and the
electron concentration n varied between 1017 and 1019
cm\−3. Capacitance-voltage analysis showed that for n1018
cm\−3 the PbTe p-n junction is one sided and abrupt. The
parameters incremental resistance, series and parallel
resistances, and ideality factor obtained from the current-voltage
I-V characteristics and the detectivity D* exhibited a large
fluctuation among the photodiodes. In spite of these fluctuations,
it was possible to correlate the noise and D* values to the
parameters obtained from the I-V analysis. These results allow
predicting the PbTe detectors figures of merit from the data
obtained from the I-V curves. The best PbTe photodiodes fabricated
here showed D* values close to 1011 cm Hz1/2 W\−1,
comparable to InSb and HgCdTe commercial detectors and to PbTe
sensors fabricated on Si substrates.",
copyholder = "SID/SCD",
issn = "0021-8979",
language = "en",
targetfile = "barros ti electrical.pdf",
urlaccessdate = "03 maio 2024"
}