TU Darmstadt / ULB / TUbiblio

Light induced hydrogen generation with silicon-based thin film tandem solar cells used as photocathode

Kaiser, Bernhard and Calvet, Wolfram and Murugasen, Eswaran and Ziegler, Jürgen and Jaegermann, Wolfram and Pust, Sascha E. and Finger, Friedhelm and Hoch, Sascha and Blug, Matthias and Busse, Jens (2015):
Light induced hydrogen generation with silicon-based thin film tandem solar cells used as photocathode.
In: International Journal of Hydrogen Energy, Elsevier Science Publishing, pp. 899-904, 40, (2), ISSN 03603199, [Online-Edition: http://dx.doi.org/10.1016/j.ijhydene.2014.11.012],
[Article]

Abstract

Thin film tandem solar cells based on amorphous and microcrystalline silicon (a-Si:H/μc-Si:H) are employed as the cathode in a photoelectrochemical converter for solar water splitting. It is setup in such a way that the silver back contact of the cell is directly connected to the electrolyte and the light enters the cell through the glass substrate. This arrangement offers a number of distinct advantages compared to the conventional designs. The cathode is further optimized by the deposition of platinum nanoparticles to achieve higher conversion efficiencies. The front contact of the photovoltaic cell is connected to a standard platinum counter electrode in a three-electrode arrangement. Photon to current conversion efficiencies can reach up to 3% for our design, which has not been optimized to the requirements of the water splitting reaction, yet. The optimization of such tandem devices made from abundant silicon in combination with nanoparticle catalysts offers an affordable pathway for direct solar-to-fuel conversion devices in form of an artificial inorganic leaf.

Item Type: Article
Erschienen: 2015
Creators: Kaiser, Bernhard and Calvet, Wolfram and Murugasen, Eswaran and Ziegler, Jürgen and Jaegermann, Wolfram and Pust, Sascha E. and Finger, Friedhelm and Hoch, Sascha and Blug, Matthias and Busse, Jens
Title: Light induced hydrogen generation with silicon-based thin film tandem solar cells used as photocathode
Language: English
Abstract:

Thin film tandem solar cells based on amorphous and microcrystalline silicon (a-Si:H/μc-Si:H) are employed as the cathode in a photoelectrochemical converter for solar water splitting. It is setup in such a way that the silver back contact of the cell is directly connected to the electrolyte and the light enters the cell through the glass substrate. This arrangement offers a number of distinct advantages compared to the conventional designs. The cathode is further optimized by the deposition of platinum nanoparticles to achieve higher conversion efficiencies. The front contact of the photovoltaic cell is connected to a standard platinum counter electrode in a three-electrode arrangement. Photon to current conversion efficiencies can reach up to 3% for our design, which has not been optimized to the requirements of the water splitting reaction, yet. The optimization of such tandem devices made from abundant silicon in combination with nanoparticle catalysts offers an affordable pathway for direct solar-to-fuel conversion devices in form of an artificial inorganic leaf.

Journal or Publication Title: International Journal of Hydrogen Energy
Volume: 40
Number: 2
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: Photoelectrochemistry, Nanoparticles, Photovoltaic converter, Silicon, Tandem cells
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Surface Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 27 Feb 2015 12:32
Official URL: http://dx.doi.org/10.1016/j.ijhydene.2014.11.012
Identification Number: doi:10.1016/j.ijhydene.2014.11.012
Funders: Partial funding by Evonik Industries AG (part-financed by the State of North Rhine-Westphalia and co-financed by the European Union “Investing in our Future, European Regional Development Fund”) is gratefully acknowledged., B.K. and W.J. acknowledge funding by the DFG excellence program in the frameworks of the cluster “Smart Interfaces” (EXC 259) and the graduate school “Energy Science and Engineering” (GSC 1070).
Export:

Optionen (nur für Redakteure)

View Item View Item