Cart (Loading....) | Create Account
Close category search window
 

Progress in Surface Passivation of Heavily Doped n-Type and p-Type Silicon by Plasma-Deposited AlO _{bm x} /SiN _{bm x} Dielectric Stacks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Duttagupta, S. ; Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore ; Fa-Jun Ma ; Lin, S.F. ; Mueller, T.
more authors

We report an outstanding level of surface passivation for both n+ and p+ silicon by AlOx/SiNx dielectric stacks deposited in an inline plasma-enhanced chemical vapor deposition (PECVD) reactor for a wide range of sheet resistances. Extremely low emitter saturation current densities (J0e) of 12 and 200 fA/cm2 are obtained on 165 and 25 Ω/sq n+ emitters, respectively, and 8 and 45 fA/cm2 on 170 and 30 Ω/sq p+ emitters, respectively. Using contactless corona-voltage measurements and device simulations, we demonstrate that the surface passivation mechanism on both n+ and p + silicon is primarily due to a relatively low interface defect density of <;1011 eV-1cm-2 in combination with a moderate fixed negative charge density of (1-2) × 1012 cm-2. From advanced modeling, the fundamental surface recombination velocity parameter is shown to be in the order of 104 cm/s for PECVD AlOx/SiNx passivated heavily doped n+ and p+ silicon surfaces.

Published in:

Photovoltaics, IEEE Journal of  (Volume:3 ,  Issue: 4 )

Date of Publication:

Oct. 2013

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.