@article {Gao:2015:2158-5849:489, title = "Ternary blend bulk heterojunction polymer solar cells based on double donors and single acceptor with ultra wideband absorption", journal = "Materials Express", parent_itemid = "infobike://asp/me", publishercode ="asp", year = "2015", volume = "5", number = "6", publication date ="2015-12-01T00:00:00", pages = "489-496", itemtype = "ARTICLE", issn = "2158-5849", url = "https://www.ingentaconnect.com/content/asp/me/2015/00000005/00000006/art00003", doi = "doi:10.1166/mex.2015.1266", keyword = "DIKETOPYRROLOPYRROLE, TERNARY BLEND BULK HETEROJUNCTION, BENZODITHIOPHENE, LOW BAND GAP POLYMER, THIENOPYRROLEDIONE", author = "Gao, Bowen and Meng, Jing", abstract = "We demonstrated the simple device configuration and low-cost processing technology of single-junction BHJ cells while inheriting the major benefit of incorporating multiple polymers in tandem cells. Ternary blend bulk heterojunction (BHJ) solar cells with high-band-gap PBDTTPD and low-band-gap PC20 BDTDPP as donor polymers, with phenyl-C61-butyric acid methyl ester (PC61 BM) as acceptor were studied. In this ternary blend BHJ, free charge carriers travel through their corresponding donor-polymer-linked channels and fullerene-enriched domain to the electrodes, and the ternary blend BHJ solar cells showed power conversion efficiencies of up to 5.16%. This added to the growing evidence that the use of ternary blends is a general and effective strategy for producing efficient organic photovoltaics manufactured in a single active-layer processing step.", }