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 …

Synthesis and evaluation of novel meso-substitutedphenyl dithieno [3, 2-b] thiophene-fused BODIPY derivatives as efficient photosensitizers for photodynamic therapy

N Cao, Y Jiang, ZB Song, D Chen, D Wu… - European Journal of …, 2024 - Elsevier
The discovery of new photosensitizer drugs with long wavelength Uv–vis absorption, high
efficiency and low side-effects is still a challenge in photodynamic therapy. Here a series of …

Parallel triplet formation pathways in a singlet fission material

N Maity, W Kim, NA Panjwani, A Kundu… - Nature …, 2022 - nature.com
Harvesting long-lived free triplets in high yields by utilizing organic singlet fission materials
can be the cornerstone for increasing photovoltaic efficiencies potentially. However, except …

Quantum interference effects elucidate triplet-pair formation dynamics in intramolecular singlet-fission molecules

KR Parenti, R Chesler, G He, P Bhattacharyya… - Nature Chemistry, 2023 - nature.com
Quantum interference (QI)—the constructive or destructive interference of conduction
pathways through molecular orbitals—plays a fundamental role in enhancing or …

Sensitized Singlet Fission in Rigidly Linked Axial and Peripheral Pentacene-Subphthalocyanine Conjugates

H Gotfredsen, D Thiel, PM Greißel, L Chen… - Journal of the …, 2023 - ACS Publications
The goal of harnessing the theoretical potential of singlet fission (SF), a process in which
one singlet excited state is split into two triplet excited states, has become a central …

Solvent‐dependent singlet fission in diketopyrrolopyrrole dimers: a mediating charge transfer versus a trapping symmetry‐breaking charge separation

I Papadopoulos, MJ Álvaro‐Martins… - Advanced Energy …, 2020 - Wiley Online Library
Three diketopyrrolopyrrole (DPP) dimers, linked via different dithienylphenylene spacers,
ortho‐DPP (o‐DPP), meta‐DPP (m‐DPP), and para‐DPP (p‐DPP), are synthesized …

Singlet Fission in Carbene‐Derived Diradicaloids

T Ullrich, P Pinter, J Messelberger, P Haines… - Angewandte …, 2020 - Wiley Online Library
Herein, we present a new class of singlet fission (SF) materials based on diradicaloids of
carbene scaffolds, namely cyclic (alkyl)(amino) carbenes (CAACs). Our modular approach …

H-type-like aggregation-accelerated singlet fission process in Dipyrrolonaphthyridinedione thin film: The role of charge transfer/excimer mixed intermediate state

L Wang, W Cai, J Sun, Y Wu, B Zhang… - The Journal of …, 2021 - ACS Publications
Through the combination of transient spectroscopy and theoretical simulations, an
accelerated singlet fission (SF) process was evidently observed in the strongly coupled H …

Chirality-induced spin coherence in electron transfer reactions

TP Fay - The Journal of Physical Chemistry Letters, 2021 - ACS Publications
Recently, there has been much interest in the chirality-induced spin selectivity effect,
whereby electron spin polarization, which is dependent on molecular chirality, is produced …

Promotion of Fast and Efficient Singlet Fission Process of PDI Dimers by Selenium Substitution

Y Yang, W Su, H Wang, X Bao, X Liu… - The Journal of …, 2024 - ACS Publications
Singlet fission (SF) is a triplet generation mechanism capable of turning a singlet exciton into
two triplet excitons. It has the potential to enhance the power conversion efficiency of single …