Band structure calculation of dilute-As GaNAs by first principle

Xiao-Hang Li; Hua Tong; Hongping Zhao; Nelson Tansu

doi:10.1117/12.842931

25 February 2010 Band structure calculation of dilute-As GaNAs by first principle

Xiao-Hang Li, Hua Tong, Hongping Zhao, Nelson Tansu

Proceedings Volume 7597, Physics and Simulation of Optoelectronic Devices XVIII; 75970H (2010) https://doi.org/10.1117/12.842931
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

We present the band structure calculation of dilute-As GaNAs alloys (from 0% to 6.25% As) by employing the densityfunctional theory that adopts the local density approximation. Our studies indicate that the GaNAs shows a direct bandgap property. A small incorporation of As into the GaN alloy leads to the a significant decrease in the energy gap, which allows direct band gap transition covering from 3.47 eV (0% As) down to 1.93eV (6.25% As). The finding implies the dilute-As GaNAs alloy as an excellent candidate for the active material for optoelectronics that covers the entire visible spectral regime. The carrier effective masses of dilute-As GaNAs alloys are also presented.

Citation Download Citation

Xiao-Hang Li, Hua Tong, Hongping Zhao, and Nelson Tansu "Band structure calculation of dilute-As GaNAs by first principle", Proc. SPIE 7597, Physics and Simulation of Optoelectronic Devices XVIII, 75970H (25 February 2010); https://doi.org/10.1117/12.842931

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available