Dr D Haranath is currently working as Professor in Physics at National Institute of Technology (NIT) Warangal, India. Prior to that he served as Principal Scientist at CSIR-National Physical Laboratory, New Delhi for about 18&1/2  years followed by 4 years as Associate Professor at NIT Warangal.  He is recipient of many awards and honors in Physical Sciences including NPL's Young Scientist Award in 2003, CSIR Young Scientist Award in 2004, DST's BOYSCAST Fellow Award in Physical Sciences in 2006, VIRA Distinguished Scientist of the year 2016, Fellow of Luminescence Society of India in 2017, Academic Audit Member of VNIT (Nagpur)-2017, Transfer of Technology Award (2018), Fellow of Luminescence Society of India (2018), Visiting Scientist for Nanotheranostics Inc.- USA (2019-2024), Grassroot Innovators Virtual Mela Award (2020), National Innovative Research Excellence Award-2022 in Physics etc. During Covid-19 outbreak, with the support of Prof D Dinakar, HoD Physics, NIT Warangal he has developed an unique virus disinfectant system called “All-in-One OzoNIT”, which can kill all types of viruses within few minutes without involvement of hazardous chemicals or gases. This technology was well appreciated and awarded by Ministry of Electronics and IT (MeITy, Govt of India). His Post-Doctoral experience gained at Nanocrystals Technology, NY, USA for many years and thereafter visits as Visiting Scientist had enriched him for the synthesis and characterization of Binary and Ternary Nanophosphors for white-LED applications. While at CSIR-NPL, he actively led the Alternative Energy Materials group with an aim of developing novel nanophosphor systems and devices for various strategic applications. He had licensed a yellow-green emitting afterglow phosphor material in Sept-2016 to an Indian paint industry named M/s Kataline Infra Products Pvt Ltd., Nagpur for Rs.11.50 Lakhs. Before to that he and his team of scientists had the credit of transferring TWO more technologies (Sulfide-based afterglow phosphor & X-ray real-time imaging screens) to Defence Laboratory Jodhpur (DRDO) and ONE technology of AC driven Electroluminescent Panels to ISRO. His other R&D interests are positioned in the synthesis and characterization of nanophase luminescent materials for LEDs and spectral energy conversion in silicon solar cells; fabrication of electroluminescent panels for back-lighting of LCD panels; development of primary color (RGB) emitting long persistent phosphors for dark vision display applications; development of radioluminescent screens for high energy (80 MeV) X-ray real-time imaging and bio-medical applications of nanophosphors as well. He has 13 years of Teaching Experience and 28 years of Research Experience and supervised 8-Ph.D., 2-M.Phil. and 25-M.Tech. theses. He has 10-granted patents, 15-Chapters in Books, more than 200 research papers in SCI journals of repute, 25-virtual journal papers, more than 250 national and international conference papers, 3-general articles, 2-technical reports to his credit. Many of his research papers were cited by Nature, appreciated by nanotechweb.org, verticalnews.com, highbeam.com etc. He is also an Editorial Board Member for International Journal of Luminescence and Applications (ISBN: 81-6717-806-5) and reviewer to many international journals viz. RSC, APS, AIP, Wiley, IoP, Springer and Elsevier Sciences. His research credentials as reported by Google Scholar are: h-index: 39, i10-index: 119, Citations: 5498. He has handled more than Rs. 3.00 Crores worth of sponsored research projects sponsored by SERB-DST, DAE-BRNS, DRDO, CSIR and MoE (MHRD). With the support of other faculty members, he and Dr Abdul Azeem together defended before the committee and successful in bringing DST-FIST project worth Rs.2.75 Crores to the Physics Department, NIT Warangal for the procurement of XRD and FE-SEM machines during 2020-2025.