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Choosing the right nanoparticle size - designing novel ZnO electrode architectures for efficient dye-sensitized solar cells

Journal Article


Abstract


  • A novel concept for constructing optimized ZnO-based photoanodes as integrative components of dye-sensitized solar cells (DSSCs) is realized by deploying differently sized nanoparticles, ranging from 2 to 10 nm, together with commercially available 20 nm nanoparticles. The 2 nm nanoparticles were used to construct an efficient buffer layer for transparent electrodes based on 10 nm nanoparticles, resulting in a relative increase of device efficiency from 1.8 to 3.0% for devices without and with a buffer layer, respectively. A mixture of 10 and 20 nm nanoparticles was optimized to maximize the diffuse reflection and to minimize the charge transport resistance in a light-scattering layer. This optimization resulted in a homogenous layer of more than 15 μm that provided a device efficiency of 3.3%. The buffer layer, transparent electrode, and light-scattering electrode, were then combined to give an overall efficiency of around 5%. Thus, this work demonstrates that varying the electrode architecture with nanoparticles of different diameters is a powerful strategy for improving the overall efficiency of ZnO-based DSSCs.

Authors


  •   Pfau, Markus (external author)
  •   Kunzmann, Andreas (external author)
  •   Segets, Doris (external author)
  •   Peukert, Wolfgang (external author)
  •   Wallace, Gordon G.
  •   Officer, David L.
  •   Clark, Timothy (external author)
  •   Costa, Ruben D. (external author)
  •   Guldi, Dirk M. (external author)

Publication Date


  • 2017

Citation


  • Pfau, M. W., Kunzmann, A., Segets, D., Peukert, W., Wallace, G. G., Officer, D. L., Clark, T., Costa, R. D. & Guldi, D. M. (2017). Choosing the right nanoparticle size - designing novel ZnO electrode architectures for efficient dye-sensitized solar cells. Journal of Materials Chemistry A, 5 (16), 7516-7522.

Scopus Eid


  • 2-s2.0-85018525601

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2500

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 7516

End Page


  • 7522

Volume


  • 5

Issue


  • 16

Place Of Publication


  • United Kingdom

Abstract


  • A novel concept for constructing optimized ZnO-based photoanodes as integrative components of dye-sensitized solar cells (DSSCs) is realized by deploying differently sized nanoparticles, ranging from 2 to 10 nm, together with commercially available 20 nm nanoparticles. The 2 nm nanoparticles were used to construct an efficient buffer layer for transparent electrodes based on 10 nm nanoparticles, resulting in a relative increase of device efficiency from 1.8 to 3.0% for devices without and with a buffer layer, respectively. A mixture of 10 and 20 nm nanoparticles was optimized to maximize the diffuse reflection and to minimize the charge transport resistance in a light-scattering layer. This optimization resulted in a homogenous layer of more than 15 μm that provided a device efficiency of 3.3%. The buffer layer, transparent electrode, and light-scattering electrode, were then combined to give an overall efficiency of around 5%. Thus, this work demonstrates that varying the electrode architecture with nanoparticles of different diameters is a powerful strategy for improving the overall efficiency of ZnO-based DSSCs.

Authors


  •   Pfau, Markus (external author)
  •   Kunzmann, Andreas (external author)
  •   Segets, Doris (external author)
  •   Peukert, Wolfgang (external author)
  •   Wallace, Gordon G.
  •   Officer, David L.
  •   Clark, Timothy (external author)
  •   Costa, Ruben D. (external author)
  •   Guldi, Dirk M. (external author)

Publication Date


  • 2017

Citation


  • Pfau, M. W., Kunzmann, A., Segets, D., Peukert, W., Wallace, G. G., Officer, D. L., Clark, T., Costa, R. D. & Guldi, D. M. (2017). Choosing the right nanoparticle size - designing novel ZnO electrode architectures for efficient dye-sensitized solar cells. Journal of Materials Chemistry A, 5 (16), 7516-7522.

Scopus Eid


  • 2-s2.0-85018525601

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2500

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 7516

End Page


  • 7522

Volume


  • 5

Issue


  • 16

Place Of Publication


  • United Kingdom