Overview
Background
Dr Mile Gao is a physicist specialising in condensed matter physics, with a focus on charge carrier dynamics in organic semiconductor devices. His research advances the development of novel measurement techniques to improve the understanding of organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). He has pioneered several charge carrier mobility measurement methods, including Metal-Insulator-Semiconductor CELIV (MIS-CELIV), photo-MIS-CELIV, injection-CELIV, and photo-injection-CELIV. These techniques enable precise characterisation of charge transport and generation processes in diode-like structures, addressing key challenges in organic optoelectronics.
Dr. Mile's work has led to significant insights into charge injection, extraction, and mobility in organic semiconductors, with implications for improving device efficiency and stability. His research is highly interdisciplinary, combining physics, materials science, and device engineering.
He has published extensively in high-impact journals and holds a patent for his contributions to the field. As an ARC DECRA Fellow at The University of Queensland, he also teaches and supervises students in advanced experimental techniques for semiconductor characterisation.
Expertise:
- Charge transport in organic semiconductors
- Carrier generation efficiency in OPVs
- Advanced electrical characterisation techniques
- Organic optoelectronic device physics
Availability
- Dr Mile Gao is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Masters (Coursework) of Engineering, Beijing Jiaotong University
- Doctor of Philosophy, The University of Queensland
Research interests
-
Organic and Perovskite Solar Cells
Research on next-generation organic and perovskite photovoltaics, including device engineering, charge generation and recombination, interface optimisation, efficiency loss mechanisms, and device stability.
-
Organic and Perovskite Light-Emitting Diodes (OLEDs and PeLEDs)
Investigation of light-emitting semiconductor materials and devices, with a focus on charge injection, carrier balance, exciton dynamics, emission efficiency, and device performance.
-
Semiconductor Device Physics and Charge Carrier Dynamics
Understanding charge carrier generation, transport, trapping, recombination, and extraction in semiconductor materials and devices through advanced electrical and optoelectronic characterisation.
-
Interface Engineering and Functional Semiconductor Materials
Exploring novel functional materials, selective contacts, and semiconductor interfaces to control charge transport and recombination, improve device efficiency, and enhance operational stability.
-
Computational Modelling and AI-Assisted Materials Design
Combining semiconductor device simulation, computational chemistry, machine learning, and generative AI approaches to understand material properties and accelerate the discovery and optimisation of optoelectronic materials and interfaces.
Research impacts
Dr Gao's research has contributed to advancing the understanding and characterisation of charge carrier behaviour in organic semiconductor optoelectronic devices.
He has developed and applied advanced transient electrical characterisation approaches to investigate charge carrier mobility, injection, transport, and photogenerated charge dynamics. His research has also provided insights into the relationships between charge transport, material properties, and device performance in organic light-emitting diodes and solar cells.
His research contributions include more than 30 peer-reviewed journal publications and a patent. In recognition of his research potential, he was awarded an Australian Research Council Discovery Early Career Researcher Award (DECRA, 2025–2028) to advance the investigation of charge carrier behaviour in organic semiconductor devices.
By bridging fundamental semiconductor physics with experimental device engineering, his research aims to enable more reliable characterisation methods and support the development of efficient, stable, and high-performance optoelectronic technologies.
Works
Search Professor Mile Gao’s works on UQ eSpace
2021
Journal Article
Effect of host generation on the luminescent and charge transporting properties of solution processed OLEDs
Gao, Mile, Jang, Junhyuk, Leitner, Tanja, Mai, Van T. N., Ranasinghe, Chandana S. K., Chu, Ronan, Burn, Paul L., Pivrikas, Almantas and Shaw, Paul E. (2021). Effect of host generation on the luminescent and charge transporting properties of solution processed OLEDs. Advanced Materials Interfaces, 8 (20) 2100820, 2100820. doi: 10.1002/admi.202100820
2021
Journal Article
Balanced hole and electron transport in Ir(ppy)3:TCTA blends
Gao, Mile, Burn, Paul L. and Pivrikas, Almantas (2021). Balanced hole and electron transport in Ir(ppy)3:TCTA blends. ACS Photonics, 8 (8) acsphotonics.1c00613, 2425-2430. doi: 10.1021/acsphotonics.1c00613
2021
Journal Article
Effect of dendron structure on the luminescent and charge transporting properties of solution processed dendrimer-based OLEDs
Gao, Mile, Mai, Van T. N., Jang, Junhyuk, Ranasinghe, Chandana Sampath Kumara, Chu, Ronan, Burn, Paul L., Gentle, Ian R., Pivrikas, Almantas and Shaw, Paul E. (2021). Effect of dendron structure on the luminescent and charge transporting properties of solution processed dendrimer-based OLEDs. Journal of Materials Chemistry C, 9 (44), 16033-16043. doi: 10.1039/d1tc03949k
2020
Journal Article
Precursor route poly(1,4-phenylenevinylene)-based interlayers for perovskite solar cells
Rakstys, Kasparas, Stephen, Meera, Saghaei, Jaber, Jin, Hui, Gao, Mile, Zhang, Guanran, Hutchinson, Kinitra, Chesman, Anthony, Burn, Paul L., Gentle, Ian and Shaw, Paul E. (2020). Precursor route poly(1,4-phenylenevinylene)-based interlayers for perovskite solar cells. ACS Applied Energy Materials, 3 (1) acsaem.9b01997, 889-899. doi: 10.1021/acsaem.9b01997
2019
Journal Article
Revealing the interplay between charge transport, luminescence efficiency, and morphology in organic light‐emitting diode blends
Gao, Mile, Lee, Thomas, Burn, Paul L., Mark, Alan E., Pivrikas, Almantas and Shaw, Paul E. (2019). Revealing the interplay between charge transport, luminescence efficiency, and morphology in organic light‐emitting diode blends. Advanced Functional Materials, 30 (9) 1907942, 1907942. doi: 10.1002/adfm.201907942
2019
Journal Article
Charge transport in an organic light emitting diode material measured using metal-insulator-semiconductor charge extraction by linearly increasing voltage with parameter variation
Gao, Mile, Burn, Paul L. and Pivrikas, Almantas (2019). Charge transport in an organic light emitting diode material measured using metal-insulator-semiconductor charge extraction by linearly increasing voltage with parameter variation. Journal of Applied Physics, 126 (3) 035501, 035501. doi: 10.1063/1.5100313
2017
Journal Article
Highly sensitive polymer photodetectors with a wide spectral response range
Gao, Mile, Wang, Wenbin, Li, Lingliang, Miao, Jianli and Zhang, Fujun (2017). Highly sensitive polymer photodetectors with a wide spectral response range. Chinese Physics B, 26 (1) 018201. doi: 10.1088/1674-1056/26/1/018201
2016
Journal Article
Highly sensitive organic photodetectors with tunable spectral response under bi-directional bias
Miao, Jianli, Zhang, Fujun, Lin, Yuze, Wang, Wenbin, Gao, Mile, Li, Lingliang, Zhang, Jian and Zhan, Xiaowei (2016). Highly sensitive organic photodetectors with tunable spectral response under bi-directional bias. Advanced Optical Materials, 4 (11), 1711-1717. doi: 10.1002/adom.201600387
2016
Journal Article
Photomultiplication photodetectors with P3HT: fullerene-free material as the active layers exhibiting a broad response
Wang, Wenbin, Zhang, Fujun, Bai, Huitao, Li, Lingliang, Gao, Mile, Zhanga, Miao and Zhan, Xiaowei (2016). Photomultiplication photodetectors with P3HT: fullerene-free material as the active layers exhibiting a broad response. Nanoscale, 8 (10), 5578-5586. doi: 10.1039/c6nr00079g
2015
Journal Article
Performance of photomultiplication polymer photodetectors by adjustment of P3HT molecular arrangement
Wang, Wenbin, Zhang, Fujun, Li, Lingliang, Gao, Mile and Hu, Bin (2015). Performance of photomultiplication polymer photodetectors by adjustment of P3HT molecular arrangement. ACS Applied Materials and Interfaces, 7 (40), 22660-22668. doi: 10.1021/acsami.5b07522
Supervision
Availability
- Dr Mile Gao is:
- Available for supervision
Looking for a supervisor? Read our advice on how to choose a supervisor.
Available projects
-
Understanding charge carrier behaviour in organic semiconductor optoelectronic devices
Develop and apply methods for characterising charge transport in organic semiconductors and inorganic-organic hybrid perovskite materials and its impact on device performance.
-
Charge carrier dynamics in organic opto-electronics devices
Develop and apply methods for characterising charge dynamics.
Media
Enquiries
Contact Dr Mile Gao directly for media enquiries about:
- Advanced materials science
- net zero
- OLED
- Organic electronics
- Semiconductor physics
- solar cell
- Solar energy
- Sustainable technology
Need help?
For help with finding experts, story ideas and media enquiries, contact our Media team: