A tetrachlorinated molecular non-fullerene acceptor for high performance near-IR absorbing organic solar cells. Issue 34 (22nd August 2018)

• Record Type: Journal Article
• Authors: Laventure, Audrey; Welch, Gregory C.
• Is Part Of: Journal of materials chemistry. Volume 6:Issue 34(2018)
• Page Start: 9060
• Page End: 9064
• Publication Date: 2018-08-22
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c8tc02701c
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Installation of chlorine atoms into the ITIC non-fullerene acceptor enables low energy photon harvesting generating high photocurrent in OSCs when paired with PBDB-T. The active layer morphology is greatly influenced by solvent additives. Abstract : We detail the physical properties and organic photovoltaic (OPV) performance of a tetrachlorinated fused ring non-fullerene acceptor. Introduction of chlorine atoms red-shifts the optical absorption out to 850 nm leading to low energy photocurrent generation in solar cell devices using the donor polymer PBDB-T. Processing films with different volatile solvent additives affects the active layer morphology and open-circuit voltage ( V oc ). The best solar cells exhibit power conversion efficiencies over 9%.