Self-Assembled Hole Transporting Monolayer to Improve PiN Type Perovskite Solar Cell Performance
Ece Aktas a b, Jesús Jiménez-López a c, Emilio Palomares a d
a Institute of Chemical Research of Catalonia-The Barcelona Institute of Science and Technology (ICIQ-BIST), Avda. Països Catalans 16, 43007 Tarragona, Spain
b Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingos/n, 43007 Tarragona,Spain
c Departament d’Enginyeria Electrònica, Elèctrica i Automàtica, Univeristat Rovira i Virgili, Avda. Països Catalans 16, 43007 Tarragona, Spain
d Institució Catalana de Recerca i Estudis Avançats (ICREA), Spain, Passeig Lluis Companys 23, Barcelona, Spain
Oral, Ece Aktas, presentation 026
DOI: https://doi.org/10.29363/nanoge.iperop.2020.026
Publication date: 14th October 2019

Perovskite solar cells (PSCs) offer a magnificent opportunity to harness solar energy in an efficient and low cost way. The ambition for commercialization has been greatly encouraged by the surge in device performance from 3.8% in 2009 to the state-of-the-art 25.2%1. To obtain high power conversion efficiency altering the interfacial properties is essentially important. New charge selective contacts have been investigated to provide possible solutions to overcome this hurdle. Being in a molecular scale, self-assembled monolayers (SAMs) are promising affordable candidates for interface modification. SAMs are essentially organic assemblies formed by the adsorption of molecular constituents from solution onto the surface of solids. In the literature, several studies have shown that SAMs have many positive effects for PSCs, including the improvement of the energy level alignment, positively affecting the morphology, and passivating trap states2. They are offering the benefits of uniformly formed layers with minimized thickness that will be suitable for large-scale production3.

In the present talk, we will discuss semiconductor self-assembled monolayer to use as hole transporting layer instead of PEDOT:PSS for PiN type perovskite solar cells. We will present preparation procedure and photovoltaic characterization of devices, which have improved power conversion efficiency.

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