Dr Mile Gao
Research Fellow
School of Chemistry and Molecular Biosciences
+61 7 334 67989
Researcher biography
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
Journal Articles
Koodalingam, Manikandan, Gao, Mile, Jang, Junhyuk, Burn, Paul L., Kistemaker, Jos C.M., Puttock, Emma V. and Shaw, Paul E. (2025). Effect of emissive ligand number on the optoelectronic properties of dendronised heteroleptic green emitting iridium(III) complexes. Organic Electronics, 138 107192, 1-10. doi: 10.1016/j.orgel.2024.107192
Jin, Hui, Mallo, Neil, Zhang, Guanran, Lindsay, Oliver, Chu, Ronan, Gao, Mile, McAnally, Shaun, Etchells, Isaac M., Burn, Paul L., Gentle, Ian R. and Shaw, Paul E. (2025). Switching From Acceptor to FRET Donor: How the Organic Solar Cell Architecture Can Change the Role of a Chromophore. Advanced Functional Materials. doi: 10.1002/adfm.202420416
Gao, Mile, Burn, Paul L., Juška, Gytis and Pivrikas, Almantas (2024). Unequilibrated charge carrier mobility in organic semiconductors measured using injection metal–insulator–semiconductor charge extraction by linearly increasing voltage. Advanced Photonics Research, 5 (9) 2300325, 1-6. doi: 10.1002/adpr.202300325
Gao, Mile, McAnally, Shaun, Jin, Hui, Burn, Paul L., Pivrikas, Almantas and Shaw, Paul E. (2024). Free Carrier Generation Efficiency in Organic Photovoltaic Films Determined Using Photo-MIS-CELIV. Organic Electronics, 135 107137, 107137. doi: 10.1016/j.orgel.2024.107137
Koodalingam, Manikandan, Jang, Junhyuk, Ranasinghe, Chandana Sampath Kumara, Gao, Mile, Burn, Paul L., Kistemaker, Jos C. M., Puttock, Emma V. and Shaw, Paul E. (2024). Effect of red emissive ligand number on dendronized solution‐processable iridium(III) complexes for organic light‐emitting diodes. Advanced Optical Materials, 12 (23) 2400640, 1-12. doi: 10.1002/adom.202400640
Koodalingam, Manikandan, Jang, Junhyuk, Gao, Mile, Burn, Paul L., Kistemaker, Jos C. M., Puttock, Emma V. and Shaw, Paul E. (2024). Effect of co-ligand number on the optoelectronic properties of first- and second-generation heteroleptic green emissive iridium(iii) complex-cored dendrimers. Journal of Materials Chemistry C, 12 (32), 12510-12520. doi: 10.1039/d4tc02336f
Pandit, Vaidehi, Jang, Junhyuk, Koodalingam, Manikandan, Ranasinghe, Chandana Sampath Kumara, Gao, Mile, Burn, Paul L. and Puttock, Emma V. (2023). Effect of dendrimer generation and surface groups on the optoelectronic properties of green emitting bis-tridentate iridium(iii) complexes designed for OLEDs. Journal of Materials Chemistry C, 11 (41), 14134-14150. doi: 10.1039/d3tc01798b
Packman, Lachlan, Mallo, Neil, Raynor, Aaron, Gao, Mile, Babazadeh, Mohammad, Jin, Hui, Huang, David M., Burn, Paul L., Gentle, Ian R. and Shaw, Paul E. (2023). The impact of film deposition and annealing on the nanostructure and dielectric constant of organic semiconductor thin films. Physical Chemistry Chemical Physics, 25 (35), 23867-23878. doi: 10.1039/d3cp03038e
Howell, Sidney A., Koodalingam, Manikandan, Jang, Junhyuk, Ranasinghe, Chandana Sampath Kumara, Gao, Mile, Chu, Ronan, Babazadeh, Mohammad, Huang, David M., Burn, Paul L., Shaw, Paul E. and Puttock, Emma V. (2023). Twisted carbazole dendrons for solution-processable green emissive phosphorescent dendrimers. ACS Applied Materials & Interfaces, 15 (10), 13393-13404. doi: 10.1021/acsami.2c22990
Jang, Junhyuk, Ranasinghe, Chandana Sampath Kumara, Thamarappalli, Akash, Gao, Mile, Koodalingam, Manikandan, Burn, Paul L., Puttock, Emma V. and Shaw, Paul E. (2022). Understanding the emission from dendrimers composed of thermally activated delayed fluorescence-based dendrons and a phosphorescent fac-tris[2-(thiophen-2-yl)-4-(phenyl)quinoline]iridium(iii) core. Journal of Materials Chemistry C, 10 (45), 17245-17257. doi: 10.1039/d2tc03979f
Wang, Xiao, Fang, Yuan, Jin, Hui, Jiang, Wei, Gao, Mile, Burn, Paul L. and Shaw, Paul E. (2022). Using charge collection narrowing to tune from broadband to narrowband all-polymer photodetectors. Physica Scripta, 97 (11) 115817, 1-12. doi: 10.1088/1402-4896/ac9719
Thamarappalli, Akash, Ranasinghe, Chandana Sampath Kumara, Jang, Junhyuk, Gao, Mile, Burn, Paul L., Puttock, Emma V. and Shaw, Paul E. (2022). Properties of dual emissive dendrimers based on thermallyactivated delayed fluorescence dendrons and a phosphorescent Ir(ppy)3 core. Advanced Functional Materials, 32 (38) 2205077, 2205077. doi: 10.1002/adfm.202205077
Ranasinghe, Chandana Sampath Kumara, Thamarappalli, Akash, Jang, Junhyuk, Gao, Mile, Koodalingam, Manikandan, Burn, Paul L., Puttock, Emma V. and Shaw, Paul E. (2022). Investigating the donor:acceptor ratio in thermally activated delayed fluorescence light-emitting macromolecules. Organic Electronics, 105 106500, 106500. doi: 10.1016/j.orgel.2022.106500
Puttock, Emma V., Ranasinghe, Chandana Sampath Kumara, Babazadeh, Mohammad, Kistemaker, Jos C. M., Jang, Junhyuk, Gao, Mile, Huang, David M., Adachi, Chihaya, Burn, Paul L. and Shaw, Paul E. (2022). Thermally activated delayed fluorescence poly(dendrimer)s – detrapping excitons for reverse intersystem crossing. Journal of Materials Chemistry C, 10 (20), 8109-8124. doi: 10.1039/d1tc05151b
Gao, Mile, Jang, Junhyuk, Mai, Van T.N., Kumara Ranasinghe, Chandana Sampath, Chu, Ronan, Burn, Paul L., Gentle, Ian R., Pivrikas, Almantas and Shaw, Paul E. (2021). Effect of dendrimer surface groups on the properties of phosphorescent emissive films. Organic Electronics, 99 106321, 1-7. doi: 10.1016/j.orgel.2021.106321
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
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
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
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
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
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
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
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
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
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
Thesis
Gao, Mile (2022). Charge transport in organic light emitting diodes. PhD Thesis, School of Chemistry and Molecular Biosciences, The University of Queensland. doi: 10.14264/6a671a8