@Article{CastroSoaPerRapAbr:2014:RoTePe,
author = "Castro, S. De and Soares, D. A. W. and Peres, M. L. and Rappl,
Paulo Henrique de Oliveira and Abramof, Eduardo",
affiliation = "Departamento de F{\'{\i}}sica e Qu{\'{\i}}mica, Universidade
Federal de Itajub{\'a}, PB 50Itajub{\'a}, Brazil and
Departamento de F{\'{\i}}sica e Qu{\'{\i}}mica, Universidade
Federal de Itajub{\'a}, PB 50Itajub{\'a}, Brazil and
Departamento de F{\'{\i}}sica e Qu{\'{\i}}mica, Universidade
Federal de Itajub{\'a}, PB 50Itajub{\'a}, Brazil and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Room temperature persistent photoconductivity in p -PbTe and p
-PbTe:BaF2",
journal = "Applied Physics Letters",
year = "2014",
volume = "105",
number = "16",
keywords = "PbTe, Persistent Photoconductivity, Room temperature.",
abstract = "We investigated the persistent photoconductivity effect observed
in p-PbTe:BaF2 and undoped p-PbTe films in the temperature range
of T = 100-300 K. It was observed that the PPC effect scales with
temperature and that there is a transition in the relaxation time
behavior around <150 K. We found that the transition is caused by
the particular dynamics of the hole carries between the energy
barriers that characterize the traps originated from disorder
present in the samples. The analysis was performed by comparing
the theory of the random potential with the experimental data and
revealed the presence of both random local potential fluctuations
and localized states, which can be attributed to the presence of
disorder due BaF2 doping and Te vacancies.",
doi = "10.1063/1.4899140",
url = "http://dx.doi.org/10.1063/1.4899140",
issn = "0003-6951",
label = "scopus 2014-11 CastroSoaPerRapAbr:2014:RoTePe",
language = "en",
urlaccessdate = "27 abr. 2024"
}