Bioinspired photoelectric conversion system based on carbon-quantum-dot-doped dye-semiconductor complex
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Updated: May 11, 2026

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
Zheng Ma1, Yong-Lai Zhang, Lei Wang
1Institute of Functional Nano and Soft Materials (FUNSOM) & Jiangsu Key Laboratory for Carbon Based Functional Materials and Devices, Soochow University, Suzhou, China.
Abstract:
Compared to nature's photoelectric conversion processes, artificial devices are still far inferior in efficiency and stability. Inspired by light absorption and resonance energy transfer processes of chlorophyll, we developed a highly efficient photoelectric conversion system by introducing Carbon quantum dots (CQDs) as an electron transfer intermediary. Compared with conventional dye-sensitized semiconductor systems, the present CQD-doped system showed significantly higher photoelectric conversion efficiency, as much as 7 times that without CQDs. The CQD-doped dye/semiconductor system may provide a powerful approach to the development of highly efficient photoelectric devices.
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