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Issue 1, 2011

Transparent electrode requirements for thin film solar cell modules

Author affiliations

Abstract

The transparent conductor (TC) layer in thin film solar cell modules has a significant impact on the power conversion efficiency. Reflection, absorption, resistive losses and lost active area either from the scribed interconnect region in monolithically integrated modules or from the shadow losses of a metal grid in standard modules typically reduce the efficiency by 10–25%. Here, we perform calculations to show that a competitive TC must have a transparency of at least 90% at a sheet resistance of less than 10 Ω/sq (conductivity/absorptivity ≥ 1 Ω−1) for monolithically integrated modules. For standard modules, losses are much lower and the performance of alternative lower cost TC materials may already be sufficient to replace conducting oxides in this geometry.

Graphical abstract: Transparent electrode requirements for thin film solar cell modules

Article information


Submitted
20 Aug 2010
Accepted
20 Oct 2010
First published
05 Nov 2010

Energy Environ. Sci., 2011,4, 131-134
Article type
Communication

Transparent electrode requirements for thin film solar cell modules

M. W. Rowell and M. D. McGehee, Energy Environ. Sci., 2011, 4, 131 DOI: 10.1039/C0EE00373E

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