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Micropatterned Carbon-on-Quartz Electrode Chips for Photocurrent Generation from Thylakoid Membranes

Bunea, Ada-Ioana; Heiskanen, Arto; Pankratova, Galina LU ; Tesei, Giulio LU ; Lund, Mikael LU ; Åkerlund, Hans-Erik LU ; Leech, Dónal; Larsen, Niels Bent; Keller, Stephan Sylvest and Gorton, Lo LU , et al. (2018) In ACS Applied Energy Materials 1(7). p.3313-3322
Abstract
Harvesting the energy generated by photosynthetic organisms through light-dependent reactions is a significant step toward a sustainable future energy supply. Thylakoid membranes are the site of photosynthesis, and thus particularly suited for developing photo-bioelectrochemical cells. Novel electrode materials and geometries could potentially improve the efficiency of energy harvesting using thylakoid membranes. For commercial applications, electrodes with large surface areas are needed. Photolithographic patterning of a photoresist, followed by pyrolysis, is a flexible and fast approach for the fabrication of carbon electrodes with tailored properties. In this work, electrode chips consisting of patterned carbon supported on quartz were... (More)
Harvesting the energy generated by photosynthetic organisms through light-dependent reactions is a significant step toward a sustainable future energy supply. Thylakoid membranes are the site of photosynthesis, and thus particularly suited for developing photo-bioelectrochemical cells. Novel electrode materials and geometries could potentially improve the efficiency of energy harvesting using thylakoid membranes. For commercial applications, electrodes with large surface areas are needed. Photolithographic patterning of a photoresist, followed by pyrolysis, is a flexible and fast approach for the fabrication of carbon electrodes with tailored properties. In this work, electrode chips consisting of patterned carbon supported on quartz were designed and fabricated. The patterned electrode area is 1 cm2, and the measurement chamber footprint is 0.5 cm2, 1 order of magnitude larger than previously tested electrodes for thylakoid membrane immobilization. The use of a transparent substrate allows back-side illumination, protecting the bioelectrochemical system from the environment and vice versa. Two different mediators, monomeric ([Ru(NH3)6]3+) and polymeric ([Os(2,2′-bipyridine)2-poly(N-vinylimidazole)10Cl]+/2+), are used for evaluating photocurrent generation from thylakoid membranes with different electrode geometries. Current densities up to 71 μA cm–2 are measured upon illumination through the transparent electrode chip with solar simulated irradiance (1000 W m–2). (Less)
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ACS Applied Energy Materials
volume
1
issue
7
pages
3313 - 3322
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85064312817
ISSN
2574-0962
DOI
10.1021/acsaem.8b00500
language
English
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yes
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dcb43261-b91d-42e0-bf11-e73bf20a9d14
date added to LUP
2018-08-21 14:32:16
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2019-10-15 06:43:44
@article{dcb43261-b91d-42e0-bf11-e73bf20a9d14,
  abstract     = {Harvesting the energy generated by photosynthetic organisms through light-dependent reactions is a significant step toward a sustainable future energy supply. Thylakoid membranes are the site of photosynthesis, and thus particularly suited for developing photo-bioelectrochemical cells. Novel electrode materials and geometries could potentially improve the efficiency of energy harvesting using thylakoid membranes. For commercial applications, electrodes with large surface areas are needed. Photolithographic patterning of a photoresist, followed by pyrolysis, is a flexible and fast approach for the fabrication of carbon electrodes with tailored properties. In this work, electrode chips consisting of patterned carbon supported on quartz were designed and fabricated. The patterned electrode area is 1 cm2, and the measurement chamber footprint is 0.5 cm2, 1 order of magnitude larger than previously tested electrodes for thylakoid membrane immobilization. The use of a transparent substrate allows back-side illumination, protecting the bioelectrochemical system from the environment and vice versa. Two different mediators, monomeric ([Ru(NH3)6]3+) and polymeric ([Os(2,2′-bipyridine)2-poly(N-vinylimidazole)10Cl]+/2+), are used for evaluating photocurrent generation from thylakoid membranes with different electrode geometries. Current densities up to 71 μA cm–2 are measured upon illumination through the transparent electrode chip with solar simulated irradiance (1000 W m–2).},
  author       = {Bunea, Ada-Ioana and Heiskanen, Arto and Pankratova, Galina and Tesei, Giulio and Lund, Mikael and Åkerlund, Hans-Erik and Leech, Dónal and Larsen, Niels Bent and Keller, Stephan Sylvest and Gorton, Lo and Jenny, Emnéus},
  issn         = {2574-0962},
  language     = {eng},
  month        = {05},
  number       = {7},
  pages        = {3313--3322},
  publisher    = {The American Chemical Society (ACS)},
  series       = {ACS Applied Energy Materials},
  title        = {Micropatterned Carbon-on-Quartz Electrode Chips for Photocurrent Generation from Thylakoid Membranes},
  url          = {http://dx.doi.org/10.1021/acsaem.8b00500},
  volume       = {1},
  year         = {2018},
}