Photons or electrons? A critical comparison of electrochemistry and photoredox catalysis for organic synthesis

NES Tay, D Lehnherr, T Rovis - Chemical reviews, 2021 - ACS Publications
Redox processes are at the heart of synthetic methods that rely on either electrochemistry or
photoredox catalysis, but how do electrochemistry and photoredox catalysis compare? Both …

Dynamics of excitons in conjugated molecules and organic semiconductor systems

OP Dimitriev - Chemical Reviews, 2022 - ACS Publications
The exciton, an excited electron–hole pair bound by Coulomb attraction, plays a key role in
photophysics of organic molecules and drives practically important phenomena such as …

Expanded theory of H-and J-molecular aggregates: the effects of vibronic coupling and intermolecular charge transfer

NJ Hestand, FC Spano - Chemical reviews, 2018 - ACS Publications
The electronic excited states of molecular aggregates and their photophysical signatures
have long fascinated spectroscopists and theoreticians alike since the advent of Frenkel …

Perspectives in dye chemistry: a rational approach toward functional materials by understanding the aggregate state

D Bialas, E Kirchner, MIS Röhr… - Journal of the American …, 2021 - ACS Publications
The past 20 years have witnessed a renaissance of dye chemistry, moving from traditional
colorant research toward functional materials. Different from traditional colorant research …

Triplet pair states in singlet fission

K Miyata, FS Conrad-Burton, FL Geyer… - Chemical reviews, 2019 - ACS Publications
This account aims at providing an understanding of singlet fission, ie, the photophysical
process of a singlet state (S1) splitting into two triplet states (2× T1) in molecular …

Theoretical modeling of singlet fission

D Casanova - Chemical reviews, 2018 - ACS Publications
Singlet fission is a photophysical reaction in which a singlet excited electronic state splits
into two spin-triplet states. Singlet fission was discovered more than 50 years ago, but the …

Application of triplet–triplet annihilation upconversion in organic optoelectronic devices: advances and perspectives

C Gao, WWH Wong, Z Qin, SC Lo… - Advanced …, 2021 - Wiley Online Library
Organic semiconductor materials have been widely used in various optoelectronic devices
due to their rich optical and/or electrical properties, which are highly related to their excited …

Harnessing singlet exciton fission to break the Shockley–Queisser limit

A Rao, RH Friend - Nature reviews materials, 2017 - nature.com
Singlet exciton fission is a carrier multiplication process in organic semiconductors that
generates two electron–hole pairs for each photon absorbed. Singlet fission occurs on sub …

Enabling singlet fission by controlling intramolecular charge transfer in π-stacked covalent terrylenediimide dimers

EA Margulies, CE Miller, Y Wu, L Ma, GC Schatz… - Nature Chemistry, 2016 - nature.com
When an assembly of two or more molecules absorbs a photon to form a singlet exciton, and
the energetics and intermolecular interactions are favourable, the singlet exciton can rapidly …

Quantitative intramolecular singlet fission in bipentacenes

SN Sanders, E Kumarasamy, AB Pun… - Journal of the …, 2015 - ACS Publications
Singlet fission (SF) has the potential to significantly enhance the photocurrent in single-
junction solar cells and thus raise the power conversion efficiency from the Shockley …