Sagar Bhattarai
Verified @gmail.com
Scientist & Innovator
Indian Institute of Technology Guwahati
Dr. Sagar Bhattarai is a distinguished scientist, researcher, and innovator at the Indian Institute of Technology Guwahati, where he focuses on cutting-edge photovoltaic and perovskite solar cell technologies. He holds a Ph.D. from the National Institute of Technology Arunachal Pradesh, and has previously served as the Head of the Physics Department at Arunachal University of Studies.
Classified as one of the world’s top 2% scientists by Stanford University (2024), Dr. Bhattarai has contributed extensively to the field of renewable energy, publishing over 50 research papers in top-tier journals. His work involves the development of high-efficiency solar cells, which are critical for the advancement of sustainable energy solutions.
He is also an editor at Springer Nature, and his research focuses on innovative approaches in optoelectronics and solar energy materials. Dr. Bhattarai is passionate about using his expertise to tackle global energy challenges.
EDUCATION
PhD in Physics
RESEARCH, TEACHING, or OTHER INTERESTS
Energy, Fuel Technology, Materials Science, Biomaterials
FUTURE PROJECTS
Perovskite solar cells
Researchers worldwide have been interested in perovskite solar cells (PSCs) due to their exceptional photovoltaic (PV) performance. The PSCs are the next generation of the PV market as they can produce power with performance that is on par with the best silicon solar cells while costing less than silicon solar cells. The efficiency of PSCs has increased from 3.81% to 25.7% within a decade, demonstrating their immense potential. In this review, the advantages of PSCs and the evolution of efficiency with various configuration are summarized and discussed. The manufacture of PSCs on a large scale and the fabrication of perovskite films are described as well. Despite their advantages, PSCs have encountered numerous problems, including toxicity and degradation in the presence of moisture, oxygen, and UV light. Thus, we emphasize this line added to the difficulties preventing the commercialization of PSCs, as well as the road map towards commercialization are thoroughly examined.
Applications Invited
Renewable Energy
Applications Invited
Tandem solar cell, Quantum Dot solar cell
Applications Invited
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Kumar Neupane, Pratap Kumar Dakua, Jayant Kumar Sahu, Subba Rao Polamuri, Amit Ved, M. Chethan, D.V.N. Ananth, Raj Kumar, Hemasri Karri, and Sagar Bhattarai
Elsevier BV
Pranjal Barman, Anamika Kalita, Pallab Sarmah, Sagar Bhattarai, Sushanta Bordoloi, and Farrukh Khalid
Elsevier BV
Ayesha Sultana, Haraprasad Mondal, Himanshu Das, Mohammad Soroosh, and Sagar Bhattarai
Springer Science and Business Media LLC
Dheeraj Kumar Dhaked, V.L. Narayanan, Ram Gopal, Omveer Sharma, Sagar Bhattarai, and S.K. Dwivedy
Elsevier BV
Abderrahim Yousfi, Okba Saidani, Rachid Bennia, Fatma Saad Saoud, Lamir Saidi, Sagar Bhattarai, Md. Rasidul Islame, Md. Ferdous Rahman, and Girija Shankar Sahoo
Springer Science and Business Media LLC
Sagar Bhattarai, K. Deepthi Jayan, Prakash Kanjariya, Pawan Sharma, Ramneet Kaur, Jaya Madan, Mohd Zahid Ansari, Saikh Mohammad Wabaidur, and Rahul Pandey
Elsevier BV
Gagan Kumar, Babban Kumar Ravidas, Sagar Bhattarai, Mukesh Kumar Roy, and Dip Prakash Samajdar
Elsevier BV
Basra Sultana, Abu Bakkar, Okba Saidani, Sagar Bhattarai, Ahmad Irfan, and Md. Ferdous Rahman
Elsevier BV
Md. Al Ijajul Islam, Md. Ferdous Rahman, Tanvir Al Galib, Mustafa K. A. Mohammed, Sagar Bhattarai, and Ahmad Irfan
Royal Society of Chemistry (RSC)
This study investigates the effects of M-anion modifications on lead-free halide inorganic compounds, specifically Ba3MCl3 (M = N, P, As, Sb), using DFT and SCAPS-1D software.
Junu Poudel, Sagar Bhattarai, Namita Nath, and Bhaben Tanti
Elsevier BV
Lalruat Sanga, Celestine Lalengmawia, Zosiamliana Renthlei, Sougaijam Thasana Chanu, Lalhum Hima, Ningthoujam Surajkumar Singh, Andre Yvaz, Sagar Bhattarai, and D.P. Rai
Elsevier BV
Sumit Sagar, Sagar Bhattarai, Jitendra Kumar, Amitesh Kumar, and Samrat Mukhopadhyay
Elsevier BV
Pratap Kumar Dakua, Neravati Nagaraja Kumar, Subbulakshmi Ganesan, Junainah Abd Hamid, M. Ravi Kumar, Suman Saini, Piyus Kumar Pathak, Ahmed Alkhayyat, and Sagar Bhattarai
Springer Science and Business Media LLC
I. Hossain, A. T. Ngoupo, S. Bhattarai, S. P. Challagulla, and S. K. Sharma
Springer Science and Business Media LLC
Qoteyba Aouni, Souhil Kouda, Khalid Mujasam Batoo, Muhammad Farzik Ijaz, Girija Shankar Sahoo, Sagar Bhattarai, P. Sasikumar, and Hichem Bencherif
Elsevier BV
Ayesha Sultana, Haraprasad Mondal, Himanshu Ranjan Das, Mohammad Soroosh, and Sagar Bhattarai
Springer Science and Business Media LLC
Lohnye Tangjang, Anubhab Parashar Gogoi, Hirendra Das, Sagar Bhattarai, and P.K. Kalita
Elsevier BV
Okba Saidani, Abderrahim Yousfi, Sagar Bhattarai, Md. Rasidul Islame, and Girija Shankar Sahoo
Springer Science and Business Media LLC
Himanshu R. Das, Haraprasad Mondal, Sagar Bhattarai, Mohammad Soroosh, and Eshan Adibnia
Springer Science and Business Media LLC
Junu Poudel, Sagar Bhattarai, Ayush Tara, Md. Ferdous Rahman, Namita Nath, and Bhaben Tanti
Springer Science and Business Media LLC
Abhijit Das, Babban Kumar Ravidas, Sagar Bhattarai, Rahul Pandey, Jaya Madan, M. Khalid Hossain, Mukesh Kumar Roy, and D. P. Samajdar
Springer Nature Singapore
Sagar Bhattarai, Nikhil Shrivastav, Lakshi Saikia, P. K. Kalita, M. Sudhakara Reddy, S. Radhika, Jaya Madan, and Rahul Pandey
Springer Science and Business Media LLC
Pratap Kumar Dakua, Sagar Bhattarai, Subba Rao Polamuri, Asha Rajiv, Junainah Abd Hamid, Amit Sandhu, Satish Choudhury, B. Chinna Rao, Satvik Vats, and Aman Shankhyan
Springer Science and Business Media LLC
Babban Kumar Ravidas, Ajmera Raj Kumar, Azmeera Praveen, Suneet Kumar Agnihotri, Sagar Bhattarai, Rahul Pandey, Jaya Madan, Shailendra Singh, M. Khalid Hossain, Mukesh Kumar Roy,et al.
Elsevier BV
K. Deepthi Jayan and Sagar Bhattarai
Elsevier BV
RECENT SCHOLAR PUBLICATIONS
MOST CITED SCHOLAR PUBLICATIONS
GRANT DETAILS
1. Large scale production of energy from organic solar cell for the utilization in underwater surveillance, from Indian Institute of Technology Guwahati as Principal Investigator, Funding: 19 Lakh INR
2. Development and characterization of CsSnGeI3 based solar cell devices through theoretical and experimental approach, from DST-SERB, Core Research Grant as Co-Principal Investigator, Funding: 49 Lakh INR