5th Nanotechnology webinar

January 27, 2022

Scientific Program

Keynote Session:

Meetings International - Conference Keynote Speaker Brijesh Singh Yadav photo

Brijesh Singh Yadav

Indian Institute of Technology, Hyderabad

Title: Printable chalcopyrite CIGS thin film solar cells

Biography:

Brijesh Singh Yadav, a material specialist/technologist, associated with saule technologies which is situated at Wroclaw, Poland. Currently, he is working in the area of inkjet printable flexible perovskite thin film solar cells. He has published more than eight apublications in the reputed international journal as a first author and also presented his work in renowed international conferences. For his doctoral work, he has awarded by the prestigious AWSAR (Augmenting Writing Skills for Articulating Research) award 2020 by Gov of India and excellence research award-2021 by IIT Hyderabad.  

Abstract:

Capturing a 1.5% market share among thin-film technologies, Copper Indium Gallium diselenide Solar Cells (CIGSSC's) have made a distinctive mark. The bottleneck of CIGSSC's emerging disruptive photovoltaic technology is the scalability and cost towards manufacturing of CIGS absorber layer that needs to be addressed. The dynamically evolving research into non-vacuum approaches, especially on the drop on demand-based inkjet printing technology for the preparation of CIGS absorber layer, has paved the way for this. This talk would cover a unique outlook on key strategies for fabricating the CIGS absorber film using a combination of ink and inkjet printing technique. In this connection, a inclusive overview covering various research and technological aspects of the inkjet printing technique for preparation of CIGS thin film solar cells will be discussed. 

Meetings International - Conference Keynote Speaker Kavya Keremane photo

Kavya Keremane

National Institute of Technology, India

Title: Improving the performance of carbon-based perovskite solar modules (70 cm2) by incorporating cesium halide in mesoporous TiO2

Biography:

Dr. Kavya Keremane received her Ph.D. (2022) in materials science from National Institute of Technology Karnataka, Surathkal, India in collaboration with Nanyang Technological University (NTU), Singapore, Université de Nantes, France, and NC State University, USA. Her primary research interests includes optoelectronic materials and their applications in photovoltaic devices, such as dye-sensitized solar cells and perovskite solar cells. Her Ph.D. research is mainly focused on fabricating highly efficient and stable large-area inorganic lead halide carbon-based perovskite solar cells and their commercialization.

Abstract:

Organic-inorganic lead halide perovskite solar cells (PSCs) belonging to thin-film solar cells, have gained much attraction due to their low cost, high molar extinction coefficients and excellent charge carrier mobility. Currently a highest efficiency of 25.7% is reported for solar cells employing these hybrid perovskite light harvester materials. The major problem in many of the reported high efficiency PSCs arises from the use of organic hole transport layers such as Spiro–OMeTAD or PEDOT: PSS, which are unstable in the ambient air. To overcome these challenges, PSCs fabrication is reported with the carbon-based whole mesostructured architecture, where carbon layer acts as moisture barrier and prevents the hydration of the infiltrated perovskite thus substantially reduces the degradation kinetics.