Higher Mobility and Carrier Lifetimes in Solution-Processable Small-Molecule Ternary Solar Cells with 11% Efficiency

Ru-Ze Liang, Yiming Zhang, Victoria Savikhin, Maxime Babics, Zhipeng Kan, Markus Wohlfahrt, Nimer Wehbe, Shengjian Liu, Tainan Duan, Michael F. Toney, Frédéric Laquai, Pierre Beaujuge

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Solution-processed small molecule (SM) solar cells have the prospect to outperform their polymer-fullerene counterparts. Considering that both SM donors/acceptors absorb in visible spectral range, higher expected photocurrents should in principle translate into higher power conversion efficiencies (PCEs). However, limited bulk-heterojunction (BHJ) charge carrier mobility (8%, and optimized DR3:ICC6:PCBM solar cells demonstrate long-term shelf stability (dark) for >1000 h, in 55% humidity air environment.
Original languageEnglish (US)
Pages (from-to)1802836
JournalAdvanced Energy Materials
Volume9
Issue number7
DOIs
StatePublished - Dec 20 2018

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