Issue 10, 2013

Increasing the power output of a CdTe solar cell via luminescent down shifting molecules with intramolecular charge transfer and aggregation-induced emission characteristics

Abstract

A series of tetraphenylethylene (TPE) based luminescent downing-shifting (LDS) molecules was synthesized based on a new design strategy for electron donor–acceptor conjugated fluorophores, in which TPE was paired with malononitrile and used as an electron donor. Because of their strong characteristics of intramolecular charge transfer (ICT) and aggregation-induced emission (AIE), the synthesized fluorophores exhibit both large Stokes shifts (129–146 nm) and high quantum yields (0.84–0.99). Applied PMMA solid films doped with the synthesized molecules on the surface of a CdTe solar cell can significantly increase its short circuit current density (Jsc) by a magnitude of 6–10%.

Graphical abstract: Increasing the power output of a CdTe solar cell via luminescent down shifting molecules with intramolecular charge transfer and aggregation-induced emission characteristics

Supplementary files

Article information

Article type
Communication
Submitted
14 Jun 2013
Accepted
23 Jul 2013
First published
09 Aug 2013

Energy Environ. Sci., 2013,6, 2907-2911

Increasing the power output of a CdTe solar cell via luminescent down shifting molecules with intramolecular charge transfer and aggregation-induced emission characteristics

Y. Li, Z. Li, Y. Wang, A. Compaan, T. Ren and W. Dong, Energy Environ. Sci., 2013, 6, 2907 DOI: 10.1039/C3EE42001A

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