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Issue 24, 2016
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Sub-100 nm TiO2 tubular architectures for efficient solar energy conversion

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Abstract

Significant enhancement in the performance of solar energy conversion devices has historically been achieved through optimized device scaling. Scaling trends will be extremely difficult to maintain unless new materials and device structures are discovered. Herein, sub-100 nm TiO2 tubular architectures were synthesized, for the first time, via galvanostatic anodization. The fabricated nanotubes are partially crystalline with high photoactivity towards water splitting and solar-to-electric conversion. Mott–Schottky, transient photocurrent and incident photon-to-current efficiency (IPCE) analyses indicate a faster electron transfer at the nanotube/electrolyte interface. The sub-100 nm tubes showed a maximum conversion efficiency of 9.3% upon their use in dye-sensitized solar cell devices. The concept of short nanotubes should be useful for the future use of the material in various applications.

Graphical abstract: Sub-100 nm TiO2 tubular architectures for efficient solar energy conversion

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Publication details

The article was received on 16 Apr 2016, accepted on 15 May 2016 and first published on 16 May 2016


Article type: Communication
DOI: 10.1039/C6TA03156K
Citation: J. Mater. Chem. A, 2016,4, 9375-9380
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    Sub-100 nm TiO2 tubular architectures for efficient solar energy conversion

    M. Samir, M. Salama and N. K. Allam, J. Mater. Chem. A, 2016, 4, 9375
    DOI: 10.1039/C6TA03156K

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