Dr Hemant Kumar Mulmudi

Hemant obtained his Ph.D from the Nanyang Technological University, Singapore in 2014. His interests span from material synthesis via solution processed method to its application in energy harvesting devices such as photovoltaics and water splitting. He is currently working as a Research Fellow at the Australian National University on developing perovskite materials for energy harvesting and solar fuel. He also participated in outreach activities which comprised of demonstrating the fabrication of blue berry powered solar cells to young and inquisitive children at the Garran primary school, Canberra. He has active collaboratons with Asst. Prof. Nripan Mathews, Nanyang Technological University, Singapore and Assoc. Prof. Anita Ho-Baillie, University of New South Wales, Sydney.



  • Perovskite solar cells- Material development and Characterisation.
  • Lead-free perovskites
  • Using cathodoluminescence for charactersing perovskite materials.
  1. Harikesh, P.C.; Mulmudi, H. K.;  Ghosh, B.;  Goh, T.K.;  Teng, Y.T;  Thirumal, K.;  Lockrey, M.; Weber, K;  Koh, T.K;  Li, S;  Mhaisalkar, S;  Mathews, N., Rb as an alternative cation for templating inorganic lead-free perovskites for solution processed photovoltaics. Chem. Mater., 2016, 28 (20), pp 7496–7504.


  1. Duong, T.; Mulmudi, H.K.; Shen, H.; Wu, Y.; Barugkin, C.; Mayon, Y.O.; Nguyen, H.T.;  Macdonald, D.; Peng, J.; Lockrey, M.;  Li, W.; Cheng, Y.B.; White, T.P.;  Weber, K.; Catchpole, K., Structural engineering using rubidium iodide as a dopant under excess lead iodide conditions for high efficiency and stable perovskites. Nano Energy 30, 330-340.


  1. Peng, J.; Duong, T.;  Zhou, X.; Shen, H.;  Wu, Y.;  Mulmudi, H.K.;  Wan, Y.;  Zhong, D.;  Li, J.; Tsuzuki, T.;  Weber, K.;  Catchpole, K.; White, T., Efficient Indium‐Doped TiOx Electron Transport Layers for High‐Performance Perovskite Solar Cells and Perovskite‐Silicon Tandems. Advanced Energy Materials DOI: 10.1002/aenm.201601768.


  1. Xing, G.; Mulmudi, H.K.;  Chong, W.K.; Liu, X.;  Cai, Y.;  Ding, H.;  Asta, M.;  Grätzel, M.;  Mhaisalkar, S.; Mathews, N.;  Sum, T.C., Solution‐Processed Tin‐Based Perovskite for Near‐Infrared Lasing. Advanced Materials 28 (37), 8191-8196.


  1. Gurudayal, Sabba, D.; Mulmudi, H. K.; Wong, L. H.; Barber, J.; Grätzel, M.; Mathews, N., Perovskite-Hematite Tandem Cells for Efficient Overall Solar Driven Water Splitting. Nano letters 15 (6), 3833-3839.


  1. Sabba, D.; Mulmudi, H. K.; Prabhakar, R. R.; Krishnamoorthy, T.; Baikie, T.; Boix, P. P.; Mhaisalkar, S. G.; Mathews, N., Impact of Anionic Br- Substitution on Open Circuit Voltage in Lead Free Perovskite (CsSnI3-XBrx) Solar Cells. The Journal of Physical Chemistry C 119 (4), 1763-1767.


  1. Mulmudi, H. K.; Dharani, S.; Leong, W. L.; Boix, P. P.; Prabhakar, R. R.; Baikie, T.; Shi, C.; Ding, H.; Ramesh, R.; Asta, M., Lead‐Free Halide Perovskite Solar Cells with High Photocurrents Realized through Vacancy Modulation. Advanced Materials 2014, 26, 7122-7127.


  1. Prabhakar, R. R.; Huu Loc, N.; Mulmudi, H.K.;  Boix, P. P.; Juan, S.; John, R. A.; Batabyal, S. K.; Wong, L. H., Facile Water-Based Spray Pyrolysis of Earth-Abundant Cu2FeSnS4 Thin Films as an Efficient Counter Electrode in Dye-Sensitized Solar Cells. ACS applied materials & interfaces 2014, 6, 17661-17667.



  1. Shukla, S.; Loc, N. H.; Boix, P. P.; Koh, T. M.; Prabhakar, R. R.; Mulmudi, H. K.; Zhang, J.; Chen, S.; Ng, C. F.; Huan, C. H. A., Iron Pyrite Thin Film Counter Electrodes for Dye-Sensitized Solar Cells: High Efficiency for Iodine and Cobalt Redox Electrolyte Cells. ACS Nano 2014, 8, 10597-10605.



  1. Chiam, S. Y.; Mulmudi, H.K.;  Bassi, P. S.; Seng, H. L.; Barber, J.; Wong, L. H., Improving the Efficiency of Hematite Nanorods for Photoelectrochemical Water Splitting by Doping with Manganese. ACS applied materials & interfaces 2014, 6, 5852-5859.


  1. Sabba, D.; Mulmudi, H. K.; Yantara, N.; Trang, P. T. T.; Park, N. G.; Grätzel, M.; Mhaisalkar, S.; Mathews, N.; Boix, P. P., High Efficiency Electrospun TiO2 Nanofiber Based Hybrid Organic–Inorganic Perovskite Solar Cell. Nanoscale 2014, 6, 1675-1679.


  1. Sabba, D.; Mathews, N.; Chua, J.; Pramana, S. S.; Mulmudi, H. K.; Wang, Q.; Mhaisalkar, S. G., High-Surface-Area, Interconnected, Nanofibrillar TiO2 Structures as Photoanodes in Dye-Sensitized Solar Cells. Scripta Materialia 2013, 68, 487-490.


  1. Mulmudi, H. K.; Yantara, N.; Dharani, S.; Grätzel, M.; Mhaisalkar, S.; Boix, P. P.; Mathews, N., Flexible, Low-Temperature, Solution Processed ZnO-Based Perovskite Solid State Solar Cells. Chemical Communications 2013, 49, 11089-11091.


  1. Mulmudi, H. K.; Mathews, N.; Boix, P. P.; Nonomura, K.; Powar, S.; Ming, L. Y.; Graetzel, M.; Mhaisalkar, S. G., Decoupling Light Absorption and Charge Transport Properties in near IR-Sensitized Fe2O3 Regenerative Cells. Energy & Environmental Science 2013, 6, 3280-3285.


  1. Yantara, N.; Mathews, N.; Jinesh, K.; Mulmudi, H. K.; Mhaisalkar, S. G., Modulating the Optical and Electrical Properties of All Metal Oxide Solar Cells through Nanostructuring and Ultrathin Interfacial Layers. Electrochimica Acta 2012, 85, 486-491.


  1. Boxi, X.; Mulmudi, H. K.; Prabhakar, R. R.; Mathews, N.; Mhaisalkar, S. G., The Effect of Annealing Temperature on the Optical Properties of In2S3 Thin Film. Nanoscience and Nanotechnology Letters 2012, 4, 747-749.


  1. Xi, L.; Tran, P. D.; Chiam, S. Y.; Bassi, P. S.; Mak, W. F.; Mulmudi, H. K.; Batabyal, S. K.; Barber, J.; Loo, J. S. C.; Wong, L. H., CO3O4-Decorated Hematite Nanorods as an Effective Photoanode for Solar Water Oxidation. The Journal of Physical Chemistry C 2012, 116, 13884-13889.


  1. Mulmudi, H. K.; Zhang, L.; Batabyal, S.; Ming Lam, Y.; Mhaisalkar, S., Metal/Metal Sulfide Functionalized Single-Walled Carbon Nanotubes: FTO-Free Counter Electrodes for Dye Sensitized Solar Cells. Physical Chemistry Chemical Physics 2012, 14, 9906-9911.


  1. Nguyen, L. H.; Mulmudi, H. K.; Sabba, D.; Kulkarni, S. A.; Batabyal, S. K.; Nonomura, K.; Grätzel, M.; Mhaisalkar, S. G., A Selective Co-Sensitization Approach to Increase Photon Conversion Efficiency and Electron Lifetime in Dye-Sensitized Solar Cells. Physical Chemistry Chemical Physics 2012, 14, 16182-16186.


  1. Mulmudi, H. K.; Batabyal, S. K.; Rao, M.; Prabhakar, R. R.; Mathews, N.; Lam, Y. M.; Mhaisalkar, S. G., Solution Processed Transition Metal Sulfides: Application as Counter Electrodes in Dye Sensitized Solar Cells (DSCs). Physical Chemistry Chemical Physics 2011, 13, 19307-19309.


  1. Karthik, K.; Mulmudi, H. K.; Jinesh, K.; Mathews, N.; Sow, C.; Huang, Y.; Mhaisalkar, S., Charge Transport in Hierarchical α-Fe2O3 Nanostructures. Applied Physics Letters 2011, 99, 132105.


  1. Mulmudi, H. K.; Mathews, N.; Dou, X.; Xi, L.; Pramana, S.; Lam, Y.; Mhaisalkar, S., Controlled Growth of Hematite (α-Fe2O3) Nanorod Array on Fluorine Doped Tin Oxide: Synthesis and Photoelectrochemical Properties. Electrochemistry Communications 2011, 13, 951-954.

Updated:  1 April 2018/Responsible Officer:  Head of School/Page Contact:  CECS Marketing