19% efficient n-type czochralski silicon solar cells with screen-printed aluminium-alloyed rear emitter

authored by
Christian Schmiga, Jan Schmidt, Henning Nagel
Abstract

High and stable lifetimes recently reported for n-type silicon materials are an important and promising prerequisite for innovative solar cells. To exploit the advantages of the excellent electrical properties of n-type Si wafers for manufacturing simple and industrially feasible high-efficiency solar cells, we focus on back junction n+np+ solar cells featuring an easy-to-fabricate full-area screen-printed aluminiumalloyed rearp+ emitter. Independently confirmed record-high efficiencies have been achieved on n-type phosphorus-doped Czochralski-grown silicon material: 18-9% for laboratory-type n+np+ solar cells (4cm2) with shadow-mask evaporated front contact grid and 17-0% for front and rear screen-printed industrial-type cells (100 cm2). The electrical cell parameters were found to be perfectly stable under illumination.

External Organisation(s)
Institute for Solar Energy Research (ISFH)
Schott AG
Type
Article
Journal
Progress in Photovoltaics: Research and Applications
Volume
14
Pages
533-539
No. of pages
7
ISSN
1062-7995
Publication date
09.2006
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Renewable Energy, Sustainability and the Environment, Condensed Matter Physics, Electrical and Electronic Engineering
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy
Electronic version(s)
https://doi.org/10.1002/pip.725 (Access: Unknown)