Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
747350 | Solid-State Electronics | 2010 | 4 Pages |
Abstract
High efficient organic ultraviolet (UV) photovoltaic devices comprising 4,4â²,4â³-tri-(2-methylphenyl phenylamino) triphenylamine (m-MTDATA) and tris-(8-hydroxyquinoline) gallium (Gaq3) as the electron donor and acceptor, respectively, are demonstrated. The m-MTDATA/Gaq3 bilayer device shows a short-circuit current density of 59.3 μA/cm2, a open-circuit voltage of 1.85 V, a fill factor of 0.41, and a power conversion efficiency of 3.74% under illumination of a 1.2 mW/cm2 365 nm UV light. And this power conversion efficiency is superior than that of the device based on tris-(8-hydroxyquinoline) aluminum with the same device structure, which is attributed to the high electron mobility of Gaq3 and the low exciton loss via radiation decay and hence more exciton dissociation in m-MTDATA/Gaq3 device.
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Zisheng Su, Bei Chu, Wenlian Li,