Molecular beam epitaxy for high‐efficiency nitride optoelectronics

Autor: Jennifer Mary Barnes, C. Zellweger, Valerie Bousquet, S. E. Hooper, Jon Heffernan, Matthias Kauer, J. Windle
Rok vydání: 2006
Předmět:
Zdroj: physica status solidi c. 3:1379-1382
ISSN: 1610-1642
1862-6351
Popis: We review the significant progress made in the development of nitride laser diodes by molecular beam epitaxy (MBE). We report on our recent result of room temperature continuous-wave operation of InGaN quantum well laser diodes grown by MBE. Ridge waveguide lasers fabricated on freestanding GaN substrates have a continuous-wave threshold current of 125 mA, corresponding to a threshold current density of 5.7 kA cm–2. The lasers have a threshold voltage of 8.6 V and a lifetime of several minutes. We outline the further technical challenges associated with demonstrating lifetimes of several thousand hours and present an assessment of the potential of MBE as a growth method for commercial quality nitride optoelectronic devices. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze: OpenAIRE