High-Throughput Screening of Blade-Coated Polymer:Polymer Solar Cells: Solvent Determines Achievable Performance
Artikel i vetenskaplig tidskrift, 2022

Optimization of a new system for organic solar cells is a multiparametric analysis problem that requires substantial efforts in terms of time and resources. The strong microstructure-dependent performance of polymer:polymer cells makes them particularly difficult to optimize, or to translate previous knowledge from spin coating into more scalable techniques. In this work, the photovoltaic performance of blade-coated devices was studied based on the promising polymer:polymer system PBDB-T and PF5-Y5 as donor and acceptor, respectively. Using the recently developed high-throughput methodology, the system was optimized for multiple variables, including solvent system, active layer composition, ratio, and thickness, among others, by fabricating more than 500 devices with less than 24 mg of each component. As a result, the power conversion efficiency of the blade-coated devices varied from 0.08 to 6.43 % in the best device. The performed statistical analysis of the large experimental data obtained showed that solvent selection had the major impact on the final device performance due to its influence on the active layer microstructure. As a conclusion, the use of the plot of the device efficiency in the Hansen space was proposed as a powerful tool to guide solvent selection in organic photovoltaics.

Författare

Albert Harillo-Baños

Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)

Qunping Fan

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Sergi Riera-Galindo

Linköpings universitet

Ergang Wang

Chalmers, Kemi och kemiteknik, Tillämpad kemi

O.W. Inganäs

Linköpings universitet

M. Campoy-Quiles

Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)

ChemSusChem

1864-5631 (ISSN) 1864-564X (eISSN)

Vol. 15 4 e202101888

Ämneskategorier

Telekommunikation

Datavetenskap (datalogi)

Annan elektroteknik och elektronik

DOI

10.1002/cssc.202101888

PubMed

34927794

Mer information

Senast uppdaterat

2022-04-05