64 citations · 269 across the 34 of their papers we have counts for
34 papers
Lifetime enhancement for multi-photon absorption in intermediate band solar cells
Anibal Thiago Bezerra, Nelson Studart
A semiconductor structure consisting of two coupled quantum wells embedded into the intrinsic region of a {\it p-i-n} junction is proposed to be implemented as an intermediate band…
Negative photoconductance in a biased multiquantum well with filter barriers
Anibal T. Bezerra, Marcelo Z. Maialle, Marcos H. Degani +2
In this paper the photon-assisted electron motion in a multiquantum well (MQW) semiconductor heterostructure in the presence of an electric field is investigated. The time-dependen…
Generation and control of spin-polarized photocurrents in GaMnAs heterostructures
Anibal T. Bezerra, Leonardo K. Castelano, Marcos H. Degani +3
Photocurrents are calculated for a specially designed GaMnAs semiconductor heterostructure. The results reveal regions in the infrared range of the energy spectrum in which the pro…
Dispersion of confined optical phonons in semiconductor nanowires in the framework of acontinuum approach
F. Comas. I. Camps, G. E. Marques, Nelson Studart
Confined optical phonons are discussed for a semiconductor nanowire of the Ge (Si)prototype on the basis of a theory developed some years ago. In the present work this theory is ad…
Surface electron mobility over a helium film
Debora Coimbra, Sviatoslav S. Sokolov, J. -P. Rino +1
The mobility of surface electrons localized over helium films underlying solid substrates has been evaluated by solving the Boltzmann equation in the time relaxation approximation…
Confined polar optical phonons in semiconductor double heterostructures: an improved continuum approach
F. Comas, I. Camps, N. Studart +1
Confined polar optical phonons are studied in a semiconductor double heterostructure (SDH) by means of a generalization of a theory developed some years ago and based on a continuo…