Double layer antireflection coating for high-efficiency passivated emitter silicon solar cells

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · IEEE Transactions on Electron Devices (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/16.310110· OSTI ID:6995328

Zhao, J; Wang, A; Green, M A ^[1]

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1. Univ. of New South Wales, Kensington (Australia). Centre for Photovoltaic Devices and Systems

Recent high-efficiency silicon solar cells employ high-quality oxides both for surface passivation and as a rudimentary antireflection coating. This gives over 3% reflection at the cell front surface, even though the surface is microstructured. A double layer antireflection coating applied to cells with reduced SiO[sub 2] thickness reduces the cell reflection. However, although reflection is minimized by reducing the oxide thickness to values below 100 [angstrom], a rapid falloff in both open-circuit voltage and short-circuit current is observed experimentally once this thickness is reduced below 200 [angstrom]. The best compromise is found when oxide thickness is 250 [angstrom] which allows improved short-circuit current density without appreciable loss in open-circuit voltage.

• OSTI ID: 6995328
• Journal Information: IEEE Transactions on Electron Devices (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Electron Devices (Institute of Electrical and Electronics Engineers); (United States) Vol. 41:9; ISSN 0018-9383; ISSN IETDAI
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ANTIREFLECTION COATINGS
CHALCOGENIDES
COATINGS
DATA
DIMENSIONS
DIRECT ENERGY CONVERTERS
EQUIPMENT
ETCHING
EXPERIMENTAL DATA
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PASSIVATION
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SILICON COMPOUNDS
SILICON OXIDES
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SURFACE FINISHING
THICKNESS