Proceedings of Online International Conference on Hybrid and Organic Photovoltaics (OnlineHOPV20)
DOI: https://doi.org/10.29363/nanoge.onlinehopv.2020.010
Publication date: 22nd May 2020
Our group has investigated the use of Self Assembled Monolayers (SAMs) made of semiconductor hole transport organic molecules to replace the most common p-type contact, PEDOT:PSS, in perovskite based solar cells. The SAMs can be easily incorporated into the devices by simple solution processing by dipping the TOC ( transparent conducting oxide glass) in a solution containing the SAM. The SAMs are transparent, do not have influence over the ion migration mechanismes that have been found in perovskite solar cells and are very robust. The SAM molecule leads to a solar to energy conversion efficiency always higher than PEDOTPSS. In some cases over 17% which is among the highest efficiencies reported to date for PiN perovskite solar cells. The present finding highlights the potential of semiconductor based SAMs to fabricate stable and high performing planar PSCs. Moreover, intial measuements of carrier losses on this type of solar cells will be also presented.
Dr. M. Can gratefully acknowledged the financial support from Council of Higher Education (YÖK) Project-Based Mevlana Exchange Programme (Project Number: MEV-2016-056). Prof. Palomares thanks ICIQ-BIST and ICREA for their support. Moreover, the Spanish Ministerio de Ciencia, Innovación y Universidades and The AgenciaEstatl de Investigación (AEI) are also acknowledged for the CTQ2016800042-R/AIE project and the FPI grant to C.R.S. ( BES-2014-068795).
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