Abstract
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.
Original language | English |
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Pages (from-to) | 6585-6594 |
Number of pages | 10 |
Journal | Chemistry of Materials |
Volume | 26 |
Issue number | 22 |
DOIs | |
Publication status | Published - 25 Nov 2014 |
Scopus Subject Areas
- General Chemistry
- General Chemical Engineering
- Materials Chemistry