Improved performance and life time of inverted organic photovoltaics by using polymer interfacial materials
Artikel i vetenskaplig tidskrift, 2015

A previously published fluorene based interlayer polymer is here compared to three similar polymers where the fluorene monomer has been exchanged with monomers that have been reported to have a higher photo-chemical stability. The polymer interlayers have been studied in terms of their influence on device performance and stability on inverted devices with an active layer of P3HT:PC61BM. By acting as a hole-blocking layer the polymers are able to increase the efficiency of the devices with similar to 50% compared to devices with an ITO cathode. In addition, the polymers also improve the photo-stability of the devices, mainly as an effect of a reduced decrease in open-circuit voltage and fill factor. This indicates that solution processable polymer interlayers could be a way towards both higher efficiency and improved stability of inverted organic solar cells.

Solar cells

Polymer interlayer

Life time stability

Författare

Zandra George

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

E. Voroshazi

Interuniversity Micro-Electronics Center at Leuven

Camilla Lindqvist

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Renee Kroon

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Wenliu Zhuang

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Ergang Wang

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Patrik Henriksson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

A. Hadipour

Interuniversity Micro-Electronics Center at Leuven

Mats Andersson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Solar Energy Materials and Solar Cells

0927-0248 (ISSN)

Vol. 133 99-104

Ämneskategorier

Textil-, gummi- och polymermaterial

DOI

10.1016/j.solmat.2014.10.034