Asset Details
Do you wish to reserve the book?
A design strategy for intramolecular singlet fission mediated by charge-transfer states in donor–acceptor organic materials
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A design strategy for intramolecular singlet fission mediated by charge-transfer states in donor–acceptor organic materials
Do you wish to request the book?
A design strategy for intramolecular singlet fission mediated by charge-transfer states in donor–acceptor organic materials
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A design strategy for intramolecular singlet fission mediated by charge-transfer states in donor–acceptor organic materials
2015
Overview
The ability to advance our understanding of multiple exciton generation (MEG) in organic materials has been restricted by the limited number of materials capable of singlet fission. A particular challenge is the development of materials that undergo efficient intramolecular fission, such that local order and strong nearest-neighbour coupling is no longer a design constraint. Here we address these challenges by demonstrating that strong intrachain donor–acceptor interactions are a key design feature for organic materials capable of intramolecular singlet fission. By conjugating strong-acceptor and strong-donor building blocks, small molecules and polymers with charge-transfer states that mediate population transfer between singlet excitons and triplet excitons are synthesized. Using transient optical techniques, we show that triplet populations can be generated with yields up to 170%. These guidelines are widely applicable to similar families of polymers and small molecules, and can lead to the development of new fission-capable materials with tunable electronic structure, as well as a deeper fundamental understanding of MEG.
Design rules for the synthesis of donor–acceptor systems with efficient intramolecular singlet fission are now proposed. These guidelines have been applied to both small molecules and polymeric chains.
