Inducing a Nanotwinned Grain Structure within the TiO2 Nanotubes Provides Enhanced Electron Transport and DSSC Efficiencies >10%

So S, Hwang I, Yoo JE, Mohajernia S, Mackovic M, Spiecker E, Cha G, Mazare AV, Schmuki P (2018)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2018

Journal

Publisher: Wiley-VCH Verlag

Article Number: 1800981

DOI: 10.1002/aenm.201800981

Abstract

Titania is one of the key materials used in 1D, 2D, and 3D nanostructures as electron transport media in energy conversion devices. In the present study, it is shown that the electronic properties of TiO₂ nanotubes can be drastically improved by inducing a nanotwinned grain structure in the nanotube wall. This structure can be exclusively induced for “single-walled” nanotubes with a high-temperature treatment in pure oxygen atmospheres. Nanotubes with a twinned grain structure within the tube wall show a strongly enhanced conductivity and photogenerated charge transport compared to classic nano-tubes. This remarkable improvement is exemplified in the electronic properties by using nanotwinned TiO₂ nanotubes in dye-sensitized solar cells where a significant increase in efficiency of up to 10.2% is achieved.

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APA:

So, S., Hwang, I., Yoo, J.E., Mohajernia, S., Mackovic, M., Spiecker, E.,... Schmuki, P. (2018). Inducing a Nanotwinned Grain Structure within the TiO2 Nanotubes Provides Enhanced Electron Transport and DSSC Efficiencies >10%. Advanced Energy Materials. https://doi.org/10.1002/aenm.201800981

MLA:

So, Seulgi, et al. "Inducing a Nanotwinned Grain Structure within the TiO2 Nanotubes Provides Enhanced Electron Transport and DSSC Efficiencies >10%." Advanced Energy Materials (2018).

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