• ALI REYAHI

Articles written in Pramana – Journal of Physics

• Effect of temperature on $In_{x}Ga_{1−x}As/GaAs$ quantum dots

In this paper, the strain, band-edge, and energy levels of pyramidal $In_{x}Ga_{1−x}As/GaAs$ quantum dots are investigated by 1-band effective mass approach. It is shown that while temperature has no remarkable effect on the strain tensor, the band gap lowers and the radiation wavelength elongates by increasing temperature. Also, band gap and energy do not linearly decrease by temperature rise. Our results appear to agree with former researches. This can be used in designing laser devices and sensors when applied in different working temperatures. Furthermore, when the device works for a long time, self-heating occurs which changes the characteristics of the output.

• # Pramana – Journal of Physics

Volume 96, 2022
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019