http://dx.doi.org/10.1021/cm5033699">
 

Document Type

Journal Article

Department/Unit

Department of Physics

Title

Hole-Transporting Spirothioxanthene Derivatives as Donor Materials for Efficient Small-Molecule-Based Organic Photovoltaic Devices

Language

English

Abstract

© 2014 American Chemical Society. A new class of hole-transporting spirothioxanthene derivatives has been synthesized and characterized. Their photophysical, electrochemical and thermal properties have been studied. These compounds exhibit high hole mobilities of up to 1 × 10-3 cm2 V-1 s-1, determined by using thin film transistor technique. In addition, these spirothioxanthene derivatives are promising donor materials in the construction of high performance organic photovoltaic (OPV) devices. With a very low dopant concentration of 7%, highly efficient small molecule-based OPV devices with high short-circuit current density of 10.83 mA cm-2, open-circuit voltage of 0.94 V, and high power conversion efficiency of 5.40% (the highest PCE of 5.46%) have been realized.

Publication Date

2014

Source Publication Title

Chemistry of Materials

Volume

26

Issue

22

Start Page

6585

End Page

6594

Publisher

American Chemical Society

ISSN (print)

08974756

ISSN (electronic)

05205002

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