Analysis of optical losses in a photoelectrochemical cell : a tool for precise absorptance estimation

Cendula, Peter; Steier, Ludmilla; Losio, Paolo Antonio; Grätzel, Michael; Schumacher, Jürgen O.

doi:10.1002/adfm.201702768

Publication type:	Article in scientific journal
Type of review:	Not specified
Title:	Analysis of optical losses in a photoelectrochemical cell : a tool for precise absorptance estimation
Authors:	Cendula, Peter Steier, Ludmilla Losio, Paolo Antonio Grätzel, Michael Schumacher, Jürgen O.
DOI:	10.1002/adfm.201702768
Published in:	Advanced Functional Materials
Volume(Issue):	28
Issue:	1
Page(s):	1702768
Issue Date:	2018
Publisher / Ed. Institution:	Wiley
ISSN:	1616-301X 1616-3028
Language:	English
Subjects:	Hydrogen generation; Photoelectrochemical cell; Optical absorption
Subject (DDC):	530: Physics 621.04: Energy engineering
Abstract:	Optical losses in a photoelectrochemical (PEC) cell account for a substantial part of solar‐to‐hydrogen conversion losses, but limited attention is paid to the detailed investigation of optical losses in PEC cells. In this work, an optical model of combined coherent and incoherent light propagation in all layers of the PEC cell based on spectroscopic measurements is presented. Specifically, photoelectrodes using transparent conductive substrates such as F:SnO2 coated with thin absorber films are focused. The optical model is verified for hematite photoanodes fabricated by atomic layer deposition and successfully used to determine wavelength‐dependent reflection, transmission, layer absorptances, and charge generation rates. Furthermore, the calculated absorptances enable 20-30% more accurate calculations of the absorbed photon‐to‐current efficiency of PEC cells. Our optical model is a powerful tool for the optimization of the optical performance of PEC cells focusing on single absorber or tandem configurations and represents a cornerstone of a complete (optical and electrical) model for PEC water splitting cells.
URI:	https://digitalcollection.zhaw.ch/handle/11475/5642
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Cendula, P., Steier, L., Losio, P. A., Grätzel, M., & Schumacher, J. O. (2018). Analysis of optical losses in a photoelectrochemical cell : a tool for precise absorptance estimation. Advanced Functional Materials, 28(1), 1702768. https://doi.org/10.1002/adfm.201702768

Cendula, P. et al. (2018) ‘Analysis of optical losses in a photoelectrochemical cell : a tool for precise absorptance estimation’, Advanced Functional Materials, 28(1), p. 1702768. Available at: https://doi.org/10.1002/adfm.201702768.

P. Cendula, L. Steier, P. A. Losio, M. Grätzel, and J. O. Schumacher, “Analysis of optical losses in a photoelectrochemical cell : a tool for precise absorptance estimation,” Advanced Functional Materials, vol. 28, no. 1, p. 1702768, 2018, doi: 10.1002/adfm.201702768.

CENDULA, Peter, Ludmilla STEIER, Paolo Antonio LOSIO, Michael GRÄTZEL und Jürgen O. SCHUMACHER, 2018. Analysis of optical losses in a photoelectrochemical cell : a tool for precise absorptance estimation. Advanced Functional Materials. 2018. Bd. 28, Nr. 1, S. 1702768. DOI 10.1002/adfm.201702768

Cendula, Peter, Ludmilla Steier, Paolo Antonio Losio, Michael Grätzel, and Jürgen O. Schumacher. 2018. “Analysis of Optical Losses in a Photoelectrochemical Cell : A Tool for Precise Absorptance Estimation.” Advanced Functional Materials 28 (1): 1702768. https://doi.org/10.1002/adfm.201702768.

Cendula, Peter, et al. “Analysis of Optical Losses in a Photoelectrochemical Cell : A Tool for Precise Absorptance Estimation.” Advanced Functional Materials, vol. 28, no. 1, 2018, p. 1702768, https://doi.org/10.1002/adfm.201702768.