Recent advances in triplet–triplet annihilation upconversion and singlet fission, towards solar energy applications

AJ Carrod, V Gray, K Börjesson - Energy & Environmental Science, 2022 - pubs.rsc.org
Solar energy is an ample renewable energy resource, with photovoltaic (PV) technology
enabling a direct route from light to electricity. Currently, PVs are limited in photon …

Mixed electronic states in molecular dimers: Connecting singlet fission, excimer formation, and symmetry-breaking charge transfer

RM Young, MR Wasielewski - Accounts of chemical research, 2020 - ACS Publications
Conspectus Chromophore aggregates are capable of a wide variety of excited-state
dynamics that are potentially of great use in optoelectronic devices based on organic …

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 …

Accelerating symmetry-breaking charge separation in a perylenediimide trimer through a vibronically coherent dimer intermediate

C Lin, T Kim, JD Schultz, RM Young… - Nature chemistry, 2022 - nature.com
Understanding the photophysics and photochemistry of molecular π-stacked chromophores
is important for utilizing them as functional photonic materials. However, these investigations …

Unconventional singlet fission materials

T Ullrich, D Munz, DM Guldi - Chemical Society Reviews, 2021 - pubs.rsc.org
Singlet fission (SF) is a photophysical downconversion pathway, in which a singlet excitation
transforms into two triplet excited states. As such, it constitutes an exciton multiplication …

Null exciton-coupled chromophoric dimer exhibits symmetry-breaking charge separation

E Sebastian, M Hariharan - Journal of the American Chemical …, 2021 - ACS Publications
A comprehensive understanding of the structure–property relationships in
multichromophoric architectures has pushed the limits for developing robust photosynthetic …

Leveraging charge-transfer interactions in through-space-coupled pentacene dendritic oligomer for singlet exciton fission

J Kim, HT Teo, Y Hong, YC Liau, D Yim… - Journal of the …, 2023 - ACS Publications
Singlet exciton fission in organic chromophores has received much attention during the past
decade. Inspired by numerous spectroscopic studies in the solid state, there have been …

Folded perylene diimide loops as mechanoresponsive motifs

H Traeger, Y Sagara, DJ Kiebala, S Schrettl… - Angewandte …, 2021 - Wiley Online Library
A supramolecular mechanophore that can be integrated into polymers and indicates
deformation by a fluorescence color change is reported. Two perylene diimides (PDIs) were …

Controlling Intramolecular Singlet Fission Dynamics via Torsional Modulation of Through-Bond versus Through-Space Couplings

K Majumder, S Mukherjee, NA Panjwani… - Journal of the …, 2023 - ACS Publications
Covalent dimers, particularly pentacenes, are the dominant platform for developing a
mechanistic understanding of intramolecular singlet fission (iSF). Numerous studies have …

Through‐Space Charge Transfer: A New Way to Develop a High‐Performance Fluorescence Sensing Film towards Opto‐Electronically Inert Alkanes

Z Wang, X Gou, Q Shi, K Liu, X Chang… - Angewandte Chemie …, 2022 - Wiley Online Library
New strategies are in high demand for fast, sensitive, selective, on‐site and real‐time
detection of the important but challenging alkane vapors owing to their opto‐electronic …