Charge generation in polymer-fullerene bulk-heterojunction solar cells
2014 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 16, no 38, 20291-20304 p.Article in journal (Refereed) Published
Charge generation in organic solar cells is a fundamental yet heavily debated issue. This article gives a balanced review of different mechanisms proposed to explain efficient charge generation in polymer-fullerene bulk-heterojunction solar cells. We discuss the effect of charge-transfer states, excess energy, external electric field, temperature, disorder of the materials, and delocalisation of the charge carriers on charge generation. Although a general consensus has not been reached yet, recent findings, based on both steady-state and transient measurements, have significantly advanced our understanding of this process.
Place, publisher, year, edition, pages
Royal Society of Chemistry , 2014. Vol. 16, no 38, 20291-20304 p.
IdentifiersURN: urn:nbn:se:liu:diva-111471DOI: 10.1039/c4cp01814aISI: 000342072300003PubMedID: 24994122OAI: oai:DiVA.org:liu-111471DiVA: diva2:756494
Funding Agencies|Science Council (VR); Swedish Energy Agency; Knut and Alice Wallenberg foundation (KAW); European Commission2014-10-172014-10-172015-03-06