SPECTROSCOPY AND IMAGING PLATFORM FOR PHOTOACTIVE MATERIALS

The performance of conjugated polymers as emitters for triplet-triplet annihilation upconversion

Riley O'Shea, Can Gao, Tze Cin Owyong, Jonathan M White, Wallace WH Wong

2021-03-21

A series of poly(phenylene-ethynylene) copolymers with various aryl spacer units were synthesized for use as emitters in triplet-t..

Bilirubin analogues as model compounds for exciton coupling

Igor Lyskov, Andre Anda, Yee X Wong, Andrew J Tilley, Christopher R Hall, Joel Thia, Salvy P Russo, Wallace WH Wong, Jared H Cole, Trevor A Smith

2020-07-21

A series of phycobilin analogues have been investigated in terms of coupled excitonic systems. These compounds consist of a monome..

FRET-enhanced photoluminescence of perylene diimides by combining molecular aggregation and insulation

Bolong Zhang, Igor Lyskov, Lachlan J Wilson, Randy P Sabatini, Anjay Manian, Hamid Soleimaninejad, Jonathan M White, Trevor A Smith, Girish Lakhwani, David J Jones, Kenneth P Ghiggino, Salvy P Russo, Wallace WH Wong

2020-07-14

The photoluminescence quantum yield (ϕPL) of perylene diimide derivatives (PDIs) is often limited by aggregation caused quenching ..

A luminescent solar concentrator ray tracing simulator with a graphical user interface: features and applications

Bolong Zhang, Hanbo Yang, Timothy Warner, Paul Mulvaney, Gary Rosengarten, Wallace WH Wong, Kenneth P Ghiggino

2020-07-01

A Monte-Carlo ray tracing simulator with a graphical user interface (MCRTS-GUI) has been developed to provide a quantitative descr..

Competitive Triplet Formation and Recombination in Crystalline Films of Perylenediimide Derivatives: Implications for Singlet Fission

Saghar Masoomi-Godarzi, Christopher R Hall, Bolong Zhang, Mark A Gregory, Jonathan M White, Wallace WH Wong, Kenneth P Ghiggino, Trevor A Smith, David J Jones

2020-05-28

Developing photostable compounds that undergo quantitative singlet fission (SF) is a key challenge. As SF necessitates electron tr..

Simple improvements to Gilch synthesis and molecular weight modulation of MEH-PPV

Riley O'shea, Wallace WH Wong

2020-04-28

The solvent and temperature used in the Gilch synthesis of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) wer..

Triplet fusion upconversion using sterically protected 9,10-diphenylanthracene as the emitter

Can Gao, Bolong Zhang, Christopher R Hall, Li Li, Yeqin Chen, Yi Zeng, Trevor A Smith, Wallace WH Wong

2020-03-21

Improving the efficiency of triplet fusion upconversion (TF-UC) in the solid-state is still challenging due to the aggregation and..

Tetrabenzo[5.7]fulvalene: a forgotten aggregation induced-emission luminogen

Reece D Crocker, Bolong Zhang, Domenic P Pace, Wallace WH Wong, Thanh V Nguyen

2019-10-04

Tetrabenzo[5.7]fulvalene, one of the first recognized stable members of mixed fulvalenes, has attracted widespread interest for it..

Tetraphenylethene 9,10-Diphenylanthracene Derivatives - Synthesis and Photophysical Properties

Can Gao, Jia Yi Seow, Bolong Zhang, Christopher R Hall, Andrew J Tilley, Jonathan M White, Trevor A Smith, Wallace WH Wong

2019-06-01

A series of tetraphenylethene 9,10-diphenylanthracene (TPE-DPA) derivatives have been synthesized, and their photophysical propert..

A Maleimide-functionalized Tetraphenylethene for Measuring and Imaging Unfolded Proteins in Cells

Shouxiang Zhang, Mengjie Liu, Lewis Yi Fong Tan, Quentin Hong, Ze Liang Pow, Tze Cin Owyong, Siyang Ding, Wallace WH Wong, Yuning Hong

2019-03-15

Collapse of the protein homeostasis (proteostasis) can lead to accumulation and aggregation of unfolded proteins, which has been f..

Molecularly isolated perylene diimides enable both strong exciton-photon coupling and high photoluminescence quantum yield

Randy P Sabatini, Bolong Zhang, Akhil Gupta, Julien Leoni, Wallace WH Wong, Girish Lakhwani

2019-03-14

Strong coupling in organic media holds the promise of efficient room temperature polariton lasing with solution-processed material..

Exciton Dynamics of Photoexcited Pendant Porphyrin Polymers in Solution and in Thin Films

AL Stevens, S Novakovic, JM White, WWH Wong, TA Smith, KP Ghiggino, MF Paige, RP Steer

2018-12-20

Several new polymers with rotatable zinc porphyrin pendants have been synthesized and their optical spectroscopic and photophysica..

Amine-Substituted Diazocine Derivatives - Synthesis, Structure, and Photophysical Properties

Mark A Gregory, Bolong Zhang, Andrew J Tilley, Tamika Scheerlinck, Jonathan M White, Wallace WH Wong

2018-11-01

A series of amine-substituted diazocines were synthesized in three steps from methyl 2-aminobenzoate or methyl 3-aminonaphtholate...

Excitonic processes in porphyrin-based photon upconversion materials

Ken Ghiggino, Sacha Novakovic, Ronald Steer, Jonathan White, Wallace Wong

2018-08-19

A water-soluble, AIE-active polyelectrolyte for conventional and fluorescence lifetime imaging of mouse neuroblastoma neuro-2A cells

Yinan Wang, Hongming Yao, Jian Zhou, Yuning Hong, Bin Chen, Bolong Zhang, Trevor A Smith, Wallace WH Wong, Zujin Zhao

2018-03-15

A new conjugated polyelectrolyte containing tetraphenylethene units in the backbone is synthesized and characterized. This polyele..

Aggregation-induced emission-mediated spectral downconversion in luminescent solar concentrators

Bolong Zhang, James L Banal, David J Jones, Ben Zhong Tang, Kenneth P Ghiggino, Wallace WH Wong

2018-03-01

The light-harvesting efficiency of luminescent solar concentrators (LSCs) is encumbered by reabsorption of emission and concentrat..

Highly Fluorescent Pyridinium Betaines for Light Harvesting

Jingjing Xu, Bolong Zhang, Marina Jansen, Lars Goerigk, Wallace WH Wong, Chris Ritchie

2017-10-23

We report the findings of our experimental and theoretical investigations into the properties of pyridinium enolates and their pot..

Hoch fluoreszierende Pyridiniumbetaine für die Lichtsammlung

Jingjing Xu, Bolong Zhang, Marina Jansen, Lars Goerigk, Wallace WH Wong, Chris Ritchie

2017-10-23

Highly Fluorescent Molecularly Insulated Perylene Diimides: Effect of Concentration on Photophysical Properties

Bolong Zhang, Hamid Soleimaninejad, David J Jones, Jonathan M White, Kenneth P Ghiggino, Trevor A Smith, Wallace WH Wong

2017-10-10

A series of four perylene diimide (PDI) chromophores were prepared with increasing steric bulk on the imide substituents with the ..

Determinants of the efficiency of photon upconversion by triplet-triplet annihilation in the solid state: zinc porphyrin derivatives in PVA

Ranjana Rautela, Neeraj K Joshi, Sacha Novakovic, Wallace WH Wong, Jonathan M White, Kenneth P Ghiggino, Matthew F Paige, Ronald P Steer

2017-09-14

Spectroscopic, photophysical and computational studies designed to expose and explain the differences in the efficiencies of non-c..

AIE conjugated polyelectrolytes based on tetraphenylethene for efficient fluorescence imaging and lifetime imaging of living cells

Mengxia Gao, Yuning Hong, Bin Chen, Yinan Wang, Wenjun Zhou, Wallace WH Wong, Jian Zhou, Trevor A Smith, Zujin Zhao

2017-07-14

A series of new conjugated polyelectrolytes (CPEs) containing tetraphenylethene units are synthesized and characterized. They show..

Emissive Molecular Aggregates and Energy Migration in Luminescent Solar Concentrators

James L Banal, Bolong Zhang, David J Jones, Kenneth P Ghiggino, Wallace WH Wong

2017-01-17

Luminescent solar concentrators (LSCs) are light harvesting devices that are ideally suited to light collection in the urban envir..

Energy Migration in Organic Solar Concentrators with a Molecularly Insulated Perylene Diimide

James L Banal, Hamid Soleimaninejad, Fadi M Jradi, Maoyuan Liu, Jonathan M White, Andrew W Blakers, Matthew W Cooper, David J Jones, Kenneth P Ghiggino, Seth R Marder, Trevor A Smith, Wallace WH Wong

2016-06-23

Maintaining high incident light absorption while minimizing luminescence reabsorption is a key challenge for organic luminescent s..