Leigh Sheppard

2025

Unveiling the photocatalytic marvels : recent advances in solar heterojunctions for environmental remediation and energy harvesting

Askari, N., Jamalzadeh, M., Askari, A., Liu, N., Samali, B., Sillanpaa, M., Sheppard, L., Li, H. & Dewil, R., 2025, In: Journal of Environmental Sciences. 148, p. 283-297 15 p.

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

2024

The multiphasic teeth of Chiton articulatus : an abrasion-resistant and self-sharpening tool for hard algae collection

Montroni, D., Sarmiento, E., Zhao, R., Dasika, P. S., Connolly, J. M., Wuhrer, R., Zhang, Y., Zhernenkov, M., Wang, T., Ramirez-Santana, B. P., Sheppard, L., Avila-Poveda, O. H., Arakaki, A., Nemoto, M., Zavattieri, P. & Kisailus, D., 14 Aug 2024, In: Advanced Functional Materials. 15 p.

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

2023

Fibrous anisotropy and mineral gradients within the radula stylus of chiton : controlled stiffness and damage tolerance in a flexible biological composite

Lee, J.-E., Connolloy, J., Yang, W., Freychet, G., Wang, T., Herrera, S. A., Murata, S., Dasika, P. S., Montroni, D., Pohl, A., Zhu, C., Zhernenkov, M., Wuhrer, R., Sheppard, L., Nemoto, M., Arakaki, A., Zavattieri, P. & Kisailus, D., Feb 2023, In: Journal of Composite Materials. 57, 4, p. 565-574 10 p.

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

2022

Preparation of aluminium doped Ta3N5 films via nitridation of sputtered tantalum oxide films

Macartney, S., Wuhrer, R., George, L. & Sheppard, L. R., 2022, In: Materials Chemistry and Physics. 287, 11 p., 126110.

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

2021

Chromium doping of Ta3N5 thin films via thermal nitridation of sputtered tantalum oxide films

Macartney, S., Liu, R., Wuhrer, R. & Sheppard, L. R., 2021, In: Materials Chemistry and Physics. 258, 15 p., 123838.

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Highly catalytically active CeO2-x-based heterojunction nanostructures with mixed micro/mesoporous architectures

Mofarah, S. S., Schreck, L., Cazorla, C., Zheng, X., Adabifiroozjaei, E., Tsounis, C., Scott, J., Shahmiri, R., Yao, Y., Abbasi, R., Wang, Y., Arandiyan, H., Sheppard, L., Wong, V., Doustkhah, E., Koshy, P. & Sorrell, C. C., 2021, In: Nanoscale. 13, 14, p. 6764-6771 8 p.

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Mo-doped, Cr-doped, and Mo–Cr codoped TiO2 thin-film photocatalysts by comparative sol-gel spin coating and ion implantation

Chen, A., Chen, W.-F., Majidi, T., Pudadera, B., Atanacio, A., Manohar, M., Sheppard, L. R., Liu, R., Sorrell, C. C. & Koshy, P., 2021, In: International Journal of Hydrogen Energy. 46, 24, p. 12961-12980 20 p.

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

2020

Chemical synthesis and high-pressure reaction of Nb5+ monodoped rutile TiO2 nanocrystals

Sun, Q., Huston, L. Q., Tang, C., Wei, L., Sheppard, L. R., Chen, H., Frankcombe, T. J., Bradby, J. E. & Liu, Y., 2020, In: Journal of Physical Chemistry C. 124, 23, p. 12808-12815 8 p.

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Cobalt doping in tantalum nitride thin films prepared by sputtering

Macartney, S., Sheppard, L. & Wuhrer, R., 2020, Proceedings of the Virtual Microscopy and Microanalysis 2020 Meeting, online, 4-7 August 2020. Cambridge University Press, 3 p.

Research output: Chapter in Book / Conference Paper › Conference Paper

Contamination of TiO2 thin films spin coated on borosilicate and rutile substrates

Kabir, I. I., Sheppard, L. R., Shamiri, R., Koshy, P., Liu, R., Joe, W., Le, A., Lu, X., Chen, W.-F. & Sorrell, C. C., 2020, In: Journal of Materials Science. 55, 9, p. 3774-3794 21 p.

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

5 Citations (Scopus)

Improvement of flow strength and scratch resistance of Ti/Cu nanocrystalline metal multilayer thin films by tailoring layer thickness and modulation ratio

Zhou, H., Chang, L., Fu, K., Huang, H., Niu, R., Liao, X., Sheppard, L., George, L. & Martinu, L., 2020, In: Surface and Coatings Technology. 404, 9 p., 126461.

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

TiO2-based homojunction photo-electrode for solar-driven water splitting

Sheppard, L. R. & Wuhrer, R., 2020, In: International Journal of Hydrogen Energy. 45, 16, p. 9386-9396 11 p.

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

2019

Manipulation of charge transport by metallic V13O16 decorated on bismuth vanadate photoelectrochemical catalyst

Ren, H., Dittrich, T., Ma, H., Hart, J. N., Fengler, S., Chen, S., Li, Y., Wang, Y., Cao, F., Schieda, M., Ng, Y. H., Xie, Z., Bo, X., Koshy, P., Sheppard, L. R., Zhao, C. & Sorrell, C. C., 2019, In: Advanced Materials. 31, 8, 9 p.

Research output: Contribution to journal › Article › peer-review

63 Citations (Scopus)

Reactive sputtered TixNbyN coatings. II : effect of common deposition parameters

Sheppard, L. R., Zhang, H., Liu, R., Macartney, S., Murphy, T., Wainer, P. & Wuhrer, R., 2019, In: Materials Chemistry and Physics. 224, p. 320-327 8 p.

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Reactive sputtered TixNbyNz thin films. I : basic processing relationships

Sheppard, L. R., Zhang, H., Liu, R., Macartney, S., Murphy, T. & Wuhrer, R., 2019, In: Materials Chemistry and Physics. 224, p. 308-313 6 p.

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

2018

Comparative study on plasticity and fracture behaviour of Ti/Al multilayers

Fu, K., Sheppard, L., Chang, L., An, X., Yang, C. & Ye, L., 2018, In: Tribology International. 126, p. 344-351 8 p.

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Contamination of TiO2 thin films spin coated on rutile and fused silica substrates

Kabir, I. I., Sheppard, L. R., Liu, R., Yao, Y., Zhu, Q., Chen, W.-F., Koshy, P. & Sorrell, C. C., 2018, In: Surface and Coatings Technology. 354, p. 369-382 14 p.

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Effect of oxygen on sputtered tantalum nitride thin films for photoelectrochemical water splitting

Macartney, S., Wuhrer, R. & Sheppard, L. R., 2018, Microscopy and Microanalysis, Volume 24, Supplement S1: Proceedings of Microscopy & Microanalysis 2018, 5-9 August 2018, Baltimore, Maryland. Cambridge University Press, p. 1546-1547 2 p.

Research output: Chapter in Book / Conference Paper › Conference Paper

Length-scale-dependent nanoindentation creep behaviour of Ti/Al multilayers by magnetron sputtering

Fu, K., Sheppard, L. R., Chang, L., An, X., Yang, C. & Ye, L., 2018, In: Materials Characterization. 139, p. 165-175 11 p.

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

2017

Oriented epitaxial TiO2 nanowires for water splitting

Hou, W., Cortez, P., Wuhrer, R., Macartney, S., Bozhilov, K. N., Liu, R., Sheppard, L. R. & Kisailus, D., 2017, In: Nanotechnology. 28, 26, 9 p., 265602.

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Plastic behaviour of high-strength lightweight Al/Ti multilayered films

Fu, K., Chang, L., Yang, C., Sheppard, L., Wang, H., Maandal, M. & Ye, L., 2017, In: Journal of Materials Science. 52, 24, p. 13956-13965 10 p.

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

The formation of defect-pairs for highly efficient visible-light catalysts

Sun, Q., Cortie, D., Zhang, S., Frankcombe, T. J., She, G., Gao, J., Sheppard, L. R., Hu, W., Chen, H., Zhuo, S., Chen, D., Withers, R. L., McIntyre, G., Yu, D., Shi, W. & Liu, Y., 2017, In: Advanced Materials. 29, 11, 6 p., 1605123.

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Ultra-high specific strength and deformation behavior of nanostructured Ti/Al multilayers

Fu, K., An, X., Chang, L., Sheppard, L., Yang, C., Wang, H. & Ye, L., 2017, In: Journal of Physics D: Applied Physics. 50, 36, 7 p., 365302.

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

2016

A sinusoidally architected helicoidal biocomposite

Yaraghi, N. A., Guarín-Zapata, N., Grunenfelder, L. K., Hintsala, E., Bhowmick, S., Hiller, J. M., Betts, M., Sheppard, L., Wuhrer, R. & [and five others], 2016, In: Advanced Materials. 28, 32, p. 6835-6844 10 p.

Research output: Contribution to journal › Article › peer-review

197 Citations (Scopus)

Effect of tungsten-doping on the properties and photocatalytic performance of titania thin films on glass substrates

Chen, H.-K., Chen, W.-F., Koshy, P., Esmaeil, A., Liu, R., Sheppard, L. R. & Sorrell, C. C., 2016, In: Journal of the Taiwan Institute of Chemical Engineers. 67, p. 202-210 9 p.

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Water sport

Sheppard, L., 2016, In: Ecogeneration. 97, p. 40-43 4 p.

Research output: Contribution to journal › Article

2015

Aluminium and tantalum doping of sputtered TiO2 thin films

Goetz, I., Liu, R., Wuhrer, R. & Sheppard, L., 2015, In: Microscopy and Microanalysis. 21, Suppl 3, p. 1799-1800 2 p., 898.

Research output: Contribution to journal › Article › peer-review

Elemental and phase analysis of the stomatopod dactyl club by X-ray mapping

Yaraghi, N. A., Grunenfelder, L., Suksangpanya, N., Guarin, N., Herrera, S., Milliron, G., Zavattieri, P., Sheppard, L., Wuhrer, R. & Kisailus, D., 2015, Microscopy and Microanalysis, Volume 21, Issue S3: Proceedings of Microscopy & Microanalysis 2015. Cambridge University Press, p. 2007-2008 2 p.

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

2 Citations (Scopus)

Tantalum segregation in Ta-Doped TiO2 and the related impact on charge separation during illumination

Sheppard, L. R., Hager, S. L., Holik, J., Liu, R., Macartney, S. & Wuhrer, R., 2015, In: Journal of Physical Chemistry C. 119, 1, p. 392-400 9 p.

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

2014

Development of novel photoelectrode materials with improved charge separation properties

Sheppard, L. R., Bello Lamo, M. P., Dietrich, T. & Wuhrer, R., 2014, Electroceramics VI: Selected, Peer Reviewed Papers from the 6th International Conference on Electroceramics (ICHSM 2010), November 9-13, 2013, JoaÃŒ‚o Pessoa, Brazil. Trans Tech Publications, p. 224-229 6 p.

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

2 Citations (Scopus)

Development of sputtered films for solar-hydrogen production at UWS Hawkesbury

Holik, J., Bello Lamo, M., Ding, R., Lee, J. J., Li, S., Wang, D., Wuhrer, R. & Sheppard, L. R., 2014, In: Materials Australia. 47, 1, p. 20-21 2 p.

Research output: Contribution to journal › Article › peer-review

Study of gamma irradiation effect on commercial TiO2 photocatalyst

Bello Lamo, M. P., Williams, P., Reece, P., Lumpkin, G. R. & Sheppard, L. R., 2014, In: Applied Radiation and Isotopes. 89, p. 25-29 5 p.

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Tantalum enrichment in tantalum-doped titanium dioxide

Sheppard, L. R., Holik, J., Liu, R., Macartney, S. & Wuhrer, R., 2014, In: Journal of the American Ceramic Society. 97, 12, p. 3793-3799 7 p.

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

2013

Niobium surface segregation in polycrystalline niobium-doped titanium dioxide

Sheppard, L. R., 2013, In: Journal of Physical Chemistry C. 117, 7, p. 3407-3413 7 p.

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Solute diffusion of platinum in rutile titanium dioxide

Sheppard, L. R., Bello Lamo, M., Holik, J., Mayfield, K. J. & Nelson, D. R., 2013, In: Journal of the American Ceramic Society. 96, 2, p. 407-411 5 p.

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

2012

The impact of niobium surface segregation on charge separation in niobium-doped titanium dioxide

Sheppard, L. R., Dittrich, T. & Nowotny, M. K., 2012, In: Journal of Physical Chemistry C. 116, 39, p. 20923-20929 7 p.

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

2010

Semiconducting properties of single crystal TiO2 in the N-P transition region

Nowotny, M. K., Bak, T., Nowotny, J. & Sheppard, L. R., 2010, In: Journal of the Australian Ceramic Society. 46, 1, p. 27-30 4 p.

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Surface photovoltage studies of nonstoichiometric rutile titanium dioxide

Sheppard, L. R., Dittrich, T., Nowotny, J. & Bak, T., 2010, In: Applied Physics Letters. 3 p.

Research output: Contribution to journal › Article

2009

Dynamics of TiO2-based photoelectrochemical cell

Bak, T., Nowotny, J., Nowotny, M. K. & Sheppard, L. R., 2009, In: Ionics. 15, 6, p. 671-679 9 p.

Research output: Contribution to journal › Article

3 Citations (Scopus)

Niobium diffusion in niobium-doped titanium dioxide

Sheppard, L. R., Atanacio, A. J., Bak, T., Nowotny, J., Nowotny, M. K. & Prince, K. E., 2009, In: Journal of Solid State Electrochemistry. 13, 7, p. 1115-1121 7 p.

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

2008

Charge transport in Cr-doped titanium dioxide

Bak, T., Nowotny, M. K., Sheppard, L. R. & Nowotny, J., 2008, In: Journal of Physical Chemistry C. 112, 18, p. 7255-7262 8 p.

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Defect chemistry and electrical properties of titanium dioxide. 1. Defect diagrams

Nowotny, J., Bak, T., Nowotny, M. K. & Sheppard, L. R., 2008, In: Journal of Physical Chemistry C. 112, 2, p. 590-601 12 p.

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Defect chemistry and electrical properties of titanium dioxide. 2. Effect of aliovalent ions

Nowotny, J., Bak, T., Nowotny, M. K. & Sheppard, L. R., 2008, In: Journal of Physical Chemistry C. 112, 2, p. 602-610 9 p.

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Defect chemistry of titanium dioxide. Application of defect engineering in processing of TiO2-based photocatalysts

Nowotny, M. K., Sheppard, L. R., Bak, T. & Nowotny, J., 2008, In: Journal of Physical Chemistry C. 112, 14, p. 5275-5300 26 p.

Research output: Contribution to journal › Article › peer-review

550 Citations (Scopus)

Defect engineering of titanium dioxide

Bak, T., Nowotny, J., Nowotny, M. K. & Sheppard, L. R., 2008, In: Journal of the Australian Ceramic Society. 44, 2, p. 63-67 5 p.

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Effect of cooling on electrical conductivity of TiO2

Sheppard, L. R., Nowotny, M. K., Bak, T. & Nowotny, J., 2008, In: Physica Status Solidi. B: Basic Research. 245, 9, p. 1816-1827 12 p.

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Effect of oxygen activity on niobium segregation in niobium-doped titanium dioxide

Sheppard, L. R., Bak, T., Nowotny, J. & Nowotny, M. K., 2008, In: Journal of the Australian Ceramic Society. 44, 2, p. 42-46 5 p.

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Effect of prolonged oxidation on semiconducting properties of titanium dioxide

Bak, T., Nowotny, M. K., Sheppard, L. R. & Nowotny, J., 2008, In: The Journal of Physical Chemistry Part C. 112, 34, p. 13248-13257 10 p.

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Electrical properties of niobium-doped titanium dioxide. 3. Thermoelectric power

Sheppard, L. R., Bak, T. & Nowotny, J., 2008, In: Journal of Physical Chemistry C. 112, 2, p. 611-617 7 p.

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Associate Professor Leigh Sheppard

Research outputs

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