Nanoengineering triplet–triplet annihilation upconversion: from materials to real-world applications

T Schloemer, P Narayanan, Q Zhou, E Belliveau… - ACS …, 2023 - ACS Publications
Using light to control matter has captured the imagination of scientists for generations, as
there is an abundance of photons at our disposal. Yet delivering photons beyond the surface …

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 …

Triplet fusion upconversion nanocapsules for volumetric 3D printing

SN Sanders, TH Schloemer, MK Gangishetty… - Nature, 2022 - nature.com
Abstract Three-dimensional (3D) printing has exploded in interest as new technologies have
opened up a multitude of applications,,,,–, with stereolithography a particularly successful …

Highly effective near-infrared activating triplet–triplet annihilation upconversion for photoredox catalysis

L Huang, W Wu, Y Li, K Huang, L Zeng… - Journal of the …, 2020 - ACS Publications
Organic triplet–triplet annihilation upconversion (TTA-UC) materials have considerable
promise in areas as broad as biology, solar energy harvesting, and photocatalysis …

Triplet Fusion Upconversion for Photocuring 3D‐Printed Particle‐Reinforced Composite Networks

J Wong, S Wei, R Meir, N Sadaba… - Advanced …, 2023 - Wiley Online Library
High energy photons (λ< 400 nm) are frequently used to initiate free radical polymerizations
to form polymer networks, but are only effective for transparent objects. This phenomenon …

High triplet energy iridium (III) isocyanoborato complex for photochemical upconversion, photoredox and energy transfer catalysis

L Schmid, F Glaser, R Schaer… - Journal of the American …, 2022 - ACS Publications
Cyclometalated Ir (III) complexes are often chosen as catalysts for challenging photoredox
and triplet–triplet-energy-transfer (TTET) catalyzed reactions, and they are of interest for …

Zinc (II) complexes with triplet charge-transfer excited states enabling energy-transfer catalysis, photoinduced electron transfer, and upconversion

JA Kübler, B Pfund, OS Wenger - JACS Au, 2022 - ACS Publications
Many CuI complexes have luminescent triplet charge-transfer excited states with diverse
applications in photophysics and photochemistry, but for isoelectronic ZnII compounds, this …

Low power threshold photochemical upconversion using a zirconium (IV) LMCT photosensitizer

M Yang, S Sheykhi, Y Zhang, C Milsmann… - Chemical …, 2021 - pubs.rsc.org
The current investigation demonstrates highly efficient photochemical upconversion (UC)
where a long-lived Zr (IV) ligand-to-metal charge transfer (LMCT) complex serves as a triplet …

Sensitizer-controlled photochemical reactivity via upconversion of red light

F Glaser, OS Wenger - Chemical Science, 2023 - pubs.rsc.org
By combining the energy input from two red photons, chemical reactions that would normally
require blue or ultraviolet irradiation become accessible. Key advantages of this biphotonic …

A Photorobust Mo(0) Complex Mimicking [Os(2,2′-bipyridine)3]2+ and Its Application in Red-to-Blue Upconversion

JB Bilger, C Kerzig, CB Larsen… - Journal of the American …, 2021 - ACS Publications
Osmium (II) polypyridines are a well-known class of complexes with luminescent metal-to-
ligand charge-transfer (MLCT) excited states that are currently experiencing a revival due to …