Determination of the direct band-gap energy of InAlAs matched to InP by photoluminescence excitation spectroscopy


Autoria(s): Roura Grabulosa, Pere; López-de Miguel, Manel; Cornet i Calveras, Albert; Morante i Lleonart, Joan R.
Data(s)

01/05/1997

Resumo

A series of InxAl1-xAs samples (0.51≪x≪0.55)coherently grown on InP was studied in order to measure the band-gap energy of the lattice matched composition. As the substrate is opaque to the relevant photon energies, a method is developed to calculate the optical absorption coefficient from the photoluminescence excitation spectra. The effect of strain on the band-gap energy has been taken into account. For x=0.532, at 14 K we have obtained Eg0=1549±6 meV

Formato

application/pdf

Identificador

Roura, P., López-de Miguel, M., Cornet, A., i Morante, J. R. (1997). Determination of the direct band-gap energy of InAlAs matched to InP by photoluminescence excitation spectroscopy. Journal of Applied Physics, 81 (10), 6916 - 6920. Recuperat 28 setembre 2010, a http://jap.aip.org/resource/1/japiau/v81/i10/p6916_s1

0021-8979

http://hdl.handle.net/10256/3048

http://dx.doi.org/10.1063/1.365253

Idioma(s)

eng

Publicador

American Institute of Physics

Relação

Reproducció digital del document publicat a: http://dx.doi.org/10.1063/1.365253

© Journal of Applied Physics, 1997, vol. 81, núm. 10, p. 6916-6920

Articles publicats (D-F)

Direitos

Tots els drets reservats

Palavras-Chave #Compostos d'alumini #Compostos d'indi #Fotoluminescència #Semiconductors #Aluminum compounds #Indium compounds #Photoluminescence
Tipo

info:eu-repo/semantics/article