UV harvesting charge blocking layers for perovskite solar cells
Levon Abelian a
a Queen Mary University of London, London, Mile end road,bethnal green,london, london, United Kingdom
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV23)
London, United Kingdom, 2023 June 12th - 14th
Organizers: Tracey Clarke, James Durrant and Trystan Watson
Poster, Levon Abelian, 256
Publication date: 30th March 2023

Though perovskites are some of the most promising third generation solar cell materials, a problem in achieving high performance, is UV photon harvesting. This study investigates an n-i-p methylammonium lead iodide (MAPI) perovskite solar cell structure, incorporating a new electron transporting layer (ETL) that absorbs strongly in the UV. Specifically, a new ETL system was developed and investigated for how it interacts and performs in conjunction with the MAPI solar cell; the objective being to utilise its higher UV harvesting capabilities. Power conversion efficiency (PCE) measurements were taken of complete solar cell devices, fabricated in ambient conditions, showing the highest PCE of 16.6% for the control SnO2/MAPI device and 15.2% for the UV harvesting-ETL/MAPI. Time-correlated single photon counting (TCSPC) measurements were conducted to assess the interactions between the UV harvesting ETL and MAPI, identifying somehwat low photoluminescence quenching of MAPI of 76.3%, indicative of the potential for further optimisation steps.

Stoichko Dimitrov, Xuan Li, Maria Garavagno

We use our own and third party cookies for analysing and measuring usage of our website to improve our services. If you continue browsing, we consider accepting its use. You can check our Cookies Policy in which you will also find how to configure your web browser for the use of cookies. More info