Multilayer films for photon upconversion-driven photoswitching DOI Creative Commons
Zhihang Wang, Beatrice E. Jones, Larissa Gomes Franca

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The use of triplet–triplet annihilation upconversion (TTA-UC) to drive photoswitching the energy-storing norbornadiene–quadricyclane (NBD–QC) isomers in solid-state is demonstrated.

Language: Английский

Silicon-photonics-enabled chip-based 3D printer DOI Creative Commons
Sabrina Corsetti, Milica Notaros, Tal Sneh

et al.

Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)

Published: June 6, 2024

Abstract Imagine if it were possible to create 3D objects in the palm of your hand within seconds using only a single photonic chip. Although printing has revolutionized way we nearly every aspect modern society, current printers rely on large and complex mechanical systems enable layer-by-layer addition material. This limits print speed, resolution, portability, form factor, material complexity. there have been recent efforts developing novel photocuring-based that utilize light transform matter from liquid resins solid advanced methods, they remain reliant bulky systems. To address these limitations, combine fields silicon photonics photochemistry propose first chip-based printer. The proposed system consists millimeter-scale chip without any moving parts emits reconfigurable visible-light holograms up into simple stationary resin well non-mechanical printing. Furthermore, experimentally demonstrate stereolithography-inspired proof-of-concept version printer beam-steering integrated optical phased array visible-light-curable resin, showing for time. work demonstrates steps towards highly-compact, portable, low-cost solution next generation printers.

Language: Английский

Citations

6
Visible-Light-Fueled Polymerizations for 3D Printing DOI
Lynn M. Stevens,

Nirvana T. Almada,

Hyeong Seok Kim

et al.

Accounts of Chemical Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

ConspectusLight-driven polymerizations and their application in 3D printing have revolutionized manufacturing across diverse sectors, from healthcare to fine arts. Despite the popularized notion that with "imagination is only limit", we others scientific community identified fundamental hurdles restrict our capabilities this space. Herein, describe

Language: Английский

Citations

0
Automated Research Platform for Development of Triplet–Triplet Annihilation Photon Upconversion Systems DOI Creative Commons
Paulius Baronas, Justas Lekavičius, Maciej Majdecki

et al.

ACS Central Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Triplet-triplet annihilation photon upconversion (TTA-UC) systems hold great promise for applications in energy, 3D printing, and photopharmacology. However, their optimization remains challenging due to the need precise tuning of sensitizer annihilator concentrations under oxygen-free conditions. This study presents an automated, high-throughput platform discovery TTA-UC systems. Capable performing 100 concentration scans just two hours, generates comprehensive maps critical parameters, including quantum yield, triplet energy transfer efficiency, threshold intensity. Using this approach, we identify key loss mechanisms both established novel At high porphyrin-based concentrations, yield losses are attributed self-quenching via aggregation triplet-triplet (sensitizer-TTA). Additionally, reverse (RTET) at elevated levels increases excitation thresholds. Testing sensitizer-annihilator pairs confirms these mechanisms, highlighting opportunities molecular design improvements. automated offers a powerful tool advancing research other photochemical studies requiring low oxygen levels, intense laser excitation, minimal material use.

Language: Английский

Citations

0
Advances in vat photopolymerization: early-career researchers shine light on a path forward DOI Creative Commons
Abhishek P. Dhand, Ren H. Bean, Viviane Chiaradia

et al.

RSC Applied Polymers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Early-career researchers from around the world summarize recent developments and present visions for future of vat photopolymerization 3D printing.

Language: Английский

Citations

0
Sensitized triplet-triplet annihilation-based photon upconversion: Assembly strategy and key consideration for sustainable energy and biomedical applications DOI

Prashanth Venkatesan,

Preeti Pal, Siew Suan Ng

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216266 - 216266

Published: Oct. 15, 2024

Language: Английский

Citations

2
Supramolecular Annihilator with DPA Parallelly Arranged by Multiple Hydrogen-Bonding Interactions for Enhanced Triplet–Triplet Annihilation Upconversion DOI Creative Commons
Qiuhui He,

Lingling Wei,

Cheng Qi He

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(10), P. 2203 - 2203

Published: May 8, 2024

The triplet annihilator is a critical component for triplet–triplet annihilation upconversion (TTA-UC); both the photophysical properties of and intermolecular orientation have pivotal effects on overall efficiency TTA-UC. Herein, we synthesized two supramolecular annihilators A-1 A-2 by grafting 9,10-diphenylanthracene (DPA) fragments, which been widely used as TTA-UC, macrocyclic host—pillar[5]arenes. In A-1, DPA units was random, while, in A-2, were pushed to parallel arrangement intramolecular hydrogen-bonding interactions. compounds showed very similar host–guest binding affinities toward electron-deficient guests, but totally different TTA-UC emissions. UC quantum yield could be optimized 13.7% when an alkyl ammonia chain-attaching sensitizer S-2 used, only 5.1% achieved. Destroying interactions adding MeOH significantly decreased emissions, demonstrating that orientations contributed greatly These results should beneficial designs provide new promising strategy enhancing

Language: Английский

Citations

1
Hydrogen self-supplying initiators excited by visible light for the fabrication of transparent films DOI

qingze Pan,

C.T. Liu,

Wenzhe Qiao

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(11), P. 3868 - 3874

Published: Sept. 23, 2024

Language: Английский

Citations

0
Multilayer films for photon upconversion-driven photoswitching DOI Creative Commons
Zhihang Wang, Beatrice E. Jones, Larissa Gomes Franca

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The use of triplet–triplet annihilation upconversion (TTA-UC) to drive photoswitching the energy-storing norbornadiene–quadricyclane (NBD–QC) isomers in solid-state is demonstrated.

Language: Английский

Citations

0