High Efficiency Perovskite Solar Cells Incorporating Semiconductor Quantum Dots
Lida Givalou a, Eleftherios Christopoulos a, Konstantina GkinI a, Polycarpos Falaras a
a National Center for Scientific Research Demokritos, Terma Patriarchou Grigoriou, Athens, 15354, Greece
Online Conference
Proceedings of Online Conference on Perovskites for Energy Harvesting: From Fundamentals to Devices (PERENHAR)
Online, Spain, 2020 November 19th - 20th
Organizers: Dinesh Kabra, Sandheep Ravishankar, Angshuman Nag and Priya Mahadevan
Poster, Lida Givalou, 074
Publication date: 2nd November 2020

 Photovoltaic (PV) technology is in the forefront of renewable energy research, while the most promising PV protocol is based on perovskites with efficiencies exceeding 25%. However, perovskite solar cells (PSCs) suffer from chemical, thermal and humidity instability, preventing them from commercialization. In this context, the utilization of quantum dots (QDs) has been proposed as an innovative strategy to tackle stability issues. The present study focuses on exploring the effect of PbS and CdS QDs incorporation to CsFAMAPbI3-xBrx PSCs using successive ionic adsorption and reaction (SILAR) on the cell's performance. The solar cell structure is: FTO/TiO2(CL)/TiO2(ML)/QDs/Perovskite/Spiro-MeOTAD/Ag. By tuning the number of SILAR cycles of QDs, an interface engineering strategy was successfully used to increase the efficiency of the solar cells from 16.30 to 17.54%.  


This research is co-financed by Greece and the European Union (European Social Fund ESF) through the Operational Programme «Human Resources Development, Education and Lifelong Learning» in the context of the project “Reinforcement of Postdoctoral Researchers - 2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation (ΙΚΥ).  

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