Two-way photoswitching norbornadiene derivatives for solar energy storage.

ABSTRACT: Molecular photoswitches of norbornadiene (NBD) derivatives have been effectively applied in molecular solar-thermal energy storage (MOST) by photoisomerization of NBD to a quadricyclane (QC) state. However, a challenge of the NBD-based MOST system is the lack of a reversible two-way photoswitching process, limiting conversion from QC to thermal and catalytic methods. Here we design a series of NBD derivatives with a combination of acceptor and donor units to achieve two-way photoswitching, which can optically release energy by back-conversion from QC to NBD. Highly efficient photoconversion yields from NBD to QC and QC to NBD are up to 99% and 82%, respectively. The energy storage density of two-way photoswitching NBD is up to 312 J g^-1 and optically controlled two-way photoswit

SUBMITTER: Fei L 

PROVIDER: S-EPMC11474437 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature