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 …

Molecular insights and concepts to engineer singlet fission energy conversion devices

R Casillas, I Papadopoulos, T Ullrich, D Thiel… - Energy & …, 2020 - pubs.rsc.org
In this Review, we showcase the fundamental processes of intermolecular and
intramolecular singlet fission (SF). Furthermore we prioritize the information, which is …

What next for singlet fission in photovoltaics? The fate of triplet and triplet-pair excitons

RJ Hudson, AN Stuart, DM Huang… - The Journal of Physical …, 2022 - ACS Publications
Exciton multiplication through singlet fission (SF) has the potential to surpass the detailed-
balance efficiency limit of single-junction photovoltaic (PV) devices. However, energy loss …

Role of Singlet and Triplet Excited States in the Oxygen-Mediated Photophysics and Photodegradation of Polyacenes

AN Stuart, TW Kee, DM Huang - Journal of the American Chemical …, 2024 - ACS Publications
Polyacenes, such as tetracene and pentacene, are common model systems for the study of
photophysical phenomena such as singlet fission (SF) and triplet fusion, processes which …

Supramolecular singlet fission of pentacene dimers within polyaromatic capsules

L Catti, H Narita, Y Tanaka, H Sakai… - Journal of the …, 2021 - ACS Publications
We herein report a new set of supramolecular nanotools for the generation and modulation
of singlet fission (SF) of noncovalent/covalent pentacene dimers. Two molecules of a …

Altering singlet fission pathways in perylene-dimers; perylene-diimide versus perylene-monoimide

I Papadopoulos, D Gutiérrez-Moreno, Y Bo, R Casillas… - Nanoscale, 2022 - pubs.rsc.org
We used a systematic approach to shed light on the inherent differences in perylenes,
namely monoimides versus diimides, including coplanarity and dipole moment, and their …

Intramolecular Triplet Diffusion Facilitates Triplet Dissociation in a Pentacene Hexamer

PM Greißel, D Thiel, H Gotfredsen… - Angewandte Chemie …, 2024 - Wiley Online Library
Triplet dynamics in singlet fission depend strongly on the strength of the electronic coupling.
Covalent systems in solution offer precise control over such couplings. Nonetheless, efficient …

Parallel versus twisted pentacenes: Conformational impact on singlet fission

I Papadopoulos, SR Reddy, PB Coto… - The Journal of …, 2022 - ACS Publications
We placed two pentacene chromophores at the termini of a diacetylene linker to investigate
the impact of excitation wavelength, conformational flexibility, and vibronic coupling on …

[HTML][HTML] Vibrational probe of the origin of singlet exciton fission in TIPS-pentacene solutions

C Grieco, GS Doucette, KT Munson… - The Journal of …, 2019 - pubs.aip.org
We use native vibrational modes of the model singlet fission chromophore 6, 13-bis
(triisopropylsilylethynyl) pentacene (TIPS-Pn) to examine the origins of singlet fission in …

Higher-energy triplet-pair states in polyenes and their role in intramolecular singlet fission

DJ Valentine, D Manawadu, W Barford - Physical Review B, 2020 - APS
Probing extended polyene systems with energy in excess of the bright state (1 1 B u+/S 2)
band edge generates triplets via singlet fission. This process is not thought to involve the 2 1 …