Research
• Develop efficient methods with high production yield for crystalline semiconducting materials including halide perovskites, and layered 2D materials i.e. transition metal dichalcogenide materials, 2D perovskites, et.al.
• Develop heterostructures for 2D materials through their strong light-to-lattice interactions.
• Discover the insight relations between structural modifications with their unique optoelectronic and photonic properties with combinational techniques, including widefield/confocal fluorescencence microscopy, FLIM, and Raman microscopy, et.al.
• Device fabrication. My interested devices including LEDs, (near) infrared photo detectors, X-ray detectors/ imagers, electro-optical modulators, photonic switches, et, al.
Biography
Wenxin Mao is a Royal Society Newton International Fellow at the Department of Chemical Engineering and Biotechnology, University of Cambridge. He completed his PhD from Monash University in 2019. Before joining CEB at University of Cambridge in March 2024, he hold a Australian Centre for Advanced Photovoltaics (ACAP) Fellowship and an ARC Centre of Excellence in Exciton Science Research Fellow at Monash University, Australia.
Publications
Full list: https://scholar.google.com.au/citations?user=cXPdiNUAAAAJ&hl=en
+ These authors share equal contributions
* These authors are corresponding authors
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Zhao, J., Fürer, S.O., McMeekin, D.P., Lin, Q., Lv, P., Ma, J., Tan, W.L, Wang, C., Tan, B., Chesman, A.S. R., Yin, H., Scully, A.D., McNeill, C. R., Mao, W.,* Lu, J.,* Cheng, Y.B., Bach, U.,* Efficient and Stable Formamidinium-Caesium Perovskite Solar Cells and Modules from Lead Acetate-Based Precursor. Energy Environ. Sci., 2023 (doi.org/10.1039/D2EE01634F).
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Zhao, J., Chesman, A.S. R., Lu, J., Mao, W.,* ., Bach, U.,*, Precursor Engineering of Lead Acetate-based Precursors for High Open Circuit Voltage Wide-bandgap Perovskite Solar Cells. ACS Appl. Mater. Interfaces, 2023 (doi.org/10.1021/acsami.2c22179).
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Lin, Q., Bernardi, S., Shabbir, B., Ou, Q., Wang, M., Yin, W., Liu, S., Chesman, A.S. R., Fürer, S.O., Si, G., Medhekar, N., Jasieniak, J., Widmer-Cooper, A.,* Mao, W.,* Bach, U.,* Phas-Control of Single-Crystalline Inorganic Halide Perovskite via Molecular Coordination Engineering, Adv. Funct. Mater. 2021 (doi.org/10.1002/adfm.202109442).
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Mao, W.,+ Hall, C. R.,+ Bernardi, S.,+ Cheng, Y.B., Widmer-Cooper, A.,* Smith, T. A.,* Bach, U.,* Light-Induced Reversal of Ion-Segregation in Mixed-Halide Perovskites. Nat. Mater. 2021(doi.org/10.1038/s41563-020-00826-y).
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Mao, W.,+ Hall, C. R.,+ Chesman, A.S. R., Forsyth, C., Cheng, Y.B., Duffy, N.W., Smith, T. A.,* Bach, U.,* Visualizing Phase Segregation in Mixed-Halide Perovskite Single Crystals, Angew. Chem. Int. Ed. 2019 (doi.org/10.1002/anie.201810193).
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Chen, W.,+ Mao, W.,+ Bach, U., Jia, B.,* Wen, X.,* Tracking Dynamic Phase Segregation in Mixed-Halide Perovskite Single Crystals under Two- photon Scanning Laser Illumination, Small Method, 2019 (doi.org/10.1002/smtd.201900273).
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Mao, W.,+ Zheng, J.,+ Zhang, Y., Chesman, A.S. R., Ou, Q., Hicks, J., Li, F., Wang, Z., Graystone, B., Bell, T.D.M., Rothmann, M.U., Duffy, N.W., Spiccia, L., Cheng, Y.B., Bao, Q.,* Bach, U.,* Controlled Growth of Monocrystalline Organo-Lead Halide Perovskite and Its Application in Photonic Devices. Angew. Chem. Int. Ed., 2017 (doi.org/10.1002/anie.201703786).
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Mao, W., Lin, X., Zhang, W., Chi, Z., Lv, R.,* Cao, A.,* Wan, L.,* Core–shell structured TiO2@polydopamine for highly active visible-light photocatalysis. ChemComm, 2016 (doi.org/10.1039/C6CC02041K).
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Mao, W., Zhang, W., Chi, Z., Lv, R.,* Cao, A.,* Wan, L.,* Core–shell structured Ce2S3@ZnO and its potential as a pigment. J. Mater. Chem. A. 2015 (doi.org/10.1039/C4TA05797J).
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Fürer, S.O., Rietwyk, K.J., Pulvirenti, F., McMeekin, D.P., Maciej, A.S., Raga, S.R., Mao, W., Lin, X., Hora, Y., Wang, J., Shi, Y., Barlow, S., Ginger, D.S., Marder, S.R.,* Bach, U.,* Naphthalene-imide Self-assembled Monolayers as a Surface Modification of ITO for Improved Thermal Stability of Perovskite Solar Cells. ACS Appl. Energy Mater., 2023 (doi.org/10.1021/acsaem.2c02735).
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Othaman, M., Zhang, T.,* McMeekin, D.P., Fürer, S.O., Mao, W., Li, W., Scully, A.D., Chesman, A.S. R., Nakashima, P.N.H., Bach, U.,* Etheridge, J.,* Structural and Photophysical Properties of Guanidinium–Iodide-Treated Perovskite Solar Cells. Solar RRL, 2022 (doi.org/10.1002/solr.202200852).
Teaching and Supervisions
Dr Mao is active in the training and supervision of research students in crystallization control and fabrication of high-performance optoelectronic devices. This includes the close supervision of two PhD students with their PhD thesis on controlling the growth of inorganic perovskite single crystals for X-ray detection and imaging; and the fabrication of highly efficient and stable perovskite solar cells. He welcomes PhD candidates with strong interest in semiconducting materials and their optoelectronic properties to join the Optoelectronic Materials and Device Spectroscopy Group.
Other Professional Activities
Selected Invited Presentations
1. Invited lecture by Agency for Science, Technology and Research (A*STAR). Title: Crystallization Control for Halide Perovskites and Their Applications in Optoelectronics, Singapore, 2022 (Invited talk).
2. 2022 Asia-Pacific Solar Research Conference. Title: Light Induced Reversal of Ion Segregation in Mixed Halide Perovskites. Newcastle, Australia, 2022 (Oral presentation).
3. 4th International Conference on Emerging Advanced Nanomaterials ICEAN 2022. Newcastle, Australia, 2022. (Invited speaker)
4. Invited talk about “Towards Single-Crystalline Perovskite Devices” at Friedrich-Alexander University of Erlangen- Nürnberg. Title: Towards Single-Crystalline Perovskite Device, Nürnberg, Germany, 2019 (Invited talk).
5. 5th International Conference on Perovskite Solar Cells and Optoelectronics. Title: Towards Single-Crystalline Perovskite Device, Lausanne, Switzerland, 2019 (Invited talk).
6. A Nature Conference: Emergent Materials and Devices: Electronic Structures and Properties. Title: Visualizing Phase Segregation in Mixed-Halide Perovskite Single Crystals, Chengdu, China, 2019 (Invited talk at Young Scholar Forum).
7. The International Conference Asia-Pacific Hybrid and Organic Photovoltaics. Title: Controlled Growth of Monocrystalline Organo-Lead Halide Perovskite and Its Application in Photonic Devices, Kitakyushu, Japan, 2018 (Oral presentation).
