Surface investigation of porous GaAs used for luminescent films

Valentinas J. Snitka; I. Simkiene; K. Grigoras; Vytautas Jasutis; Kestutis Naudzius; Vaidas Pacebutas; J. Sabataityte; Vida Mizariene

doi:10.1117/12.382323

10 April 2000 Surface investigation of porous GaAs used for luminescent films

Valentinas J. Snitka, I. Simkiene, K. Grigoras, Vytautas Jasutis, Kestutis Naudzius, Vaidas Pacebutas, J. Sabataityte, Vida Mizariene

Author Affiliations +

Proceedings Volume 4019, Design, Test, Integration, and Packaging of MEMS/MOEMS; (2000) https://doi.org/10.1117/12.382323
Event: Symposium on Design, Test, Integration, and Packaging of MEMS/MOEMS, 2000, Paris, France

Abstract

The investigations of photo luminescence spectra of the electrochemically produced porous GaAs layers, excited by continuous Ar laser radiation, were carried out. The chemical composition of the anodized p- and n-GaAs was analyzed by x-ray photoelectron spectroscopy. The GaAs surface morphology was examined by high-resolution transmission-electron microscopy and surface structure was investigated by electronograph EMR100 and Atomic Force Microscopy. It is established that increasing a duration and current density of etching changes the porosity of bulk GaAs and both Galium and arsenic oxides are formed on the sample surface Photo luminescence spectra of investigated porous surface consist of 'IR' and 'green' spectral structures. The 'IR' structure exhibits redshifts of its peak energies, and 'green' structure intensity is dependent on etching conditions. A possible reason of origin and changes in those spectra is discussed.

Citation Download Citation

Valentinas J. Snitka, I. Simkiene, K. Grigoras, Vytautas Jasutis, Kestutis Naudzius, Vaidas Pacebutas, J. Sabataityte, and Vida Mizariene "Surface investigation of porous GaAs used for luminescent films", Proc. SPIE 4019, Design, Test, Integration, and Packaging of MEMS/MOEMS, (10 April 2000); https://doi.org/10.1117/12.382323

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