Document Type

Article

Publication Date

2009

Abstract

Stain etchants made from (HF+V(2)O(5)) or (HF+FeCl(3)center dot 6H(2)O+HCl or H(2)SO(4)) exhibited virtually no initiation time before the formation of porous silicon. Etching with Fe(III) solutions for extended periods resulted in a unique dual layer structure that can reach a thickness >10 mu m and exhibited not only red-orange but also green photoluminescence (PL). Etching with (CeF(4)+H(2)SO(4)) produced extremely uniform films. Visible PL was observed immediately after etching except for those films produced with (CeF(4)+H(2)SO(4)), which required several days of air exposure before bright and robust PL developed.

Publication Title

Electrochemical and Solid State Letters

ISSN

1099-0062

Publisher

Electrochemical Society Inc

Volume

12

Issue

4

DOI

10.1149/1.3074333

Comments

© The Electrochemical Society, Inc. 2009. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published at http://esl.ecsdl.org/content/12/4/D22.abstract.

Included in

Chemistry Commons

COinS