A5058487031- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Photochemistry and Electron Transfer Studies
- Perovskite Materials and Applications
- Porphyrin and Phthalocyanine Chemistry
- Molecular Sensors and Ion Detection
- Synthesis and Properties of Aromatic Compounds
- Fullerene Chemistry and Applications
- Molecular Junctions and Nanostructures
- Crystallography and molecular interactions
- Supramolecular Chemistry and Complexes
- Photochromic and Fluorescence Chemistry
- Luminescence Properties of Advanced Materials
- Innovative Microfluidic and Catalytic Techniques Innovation
- TiO2 Photocatalysis and Solar Cells
- Advanced Polymer Synthesis and Characterization
- Libraries and Information Services
- Semiconductor materials and interfaces
- Nanoplatforms for cancer theranostics
- Carbon Nanotubes in Composites
- Polydiacetylene-based materials and applications
The University of Melbourne
2016-2025
Australian Research Council
2024
RMIT University
2021
University of Sheffield
2021
The University of Queensland
2021
Tianjin University
2021
Beijing National Laboratory for Molecular Sciences
2021
Chinese Academy of Sciences
2021
Institute of Chemistry
2021
University of Chinese Academy of Sciences
2021
Abstract Solution-processed organic photovoltaic cells (OPVs) hold great promise to enable roll-to-roll printing of environmentally friendly, mechanically flexible and cost-effective devices. Nevertheless, many high-performing systems show best power conversion efficiencies (PCEs) with a thin active layer (thickness is ~100 nm) that difficult translate processing high reproducibility. Here we report new molecular donor, benzodithiophene terthiophene rhodanine (BTR), which exhibits good...
A high molecular weight donor–acceptor conjugated polymer is synthesized using the Suzuki polycondensation method. Using this polymer, a single-junction bulk-heterojunction solar cell fabricated giving power conversion efficiency of 9.4% fullerene-modified ZnO interlayer at cathode contact. As service to our authors and readers, journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited or...
A series of four perylene diimide (PDI) chromophores were prepared with increasing steric bulk on the imide substituents aim retarding effect concentration quenching photoluminescence, commonly observed these dyes. Spectroscopic investigations compounds in dilute solution confirmed that photophysical properties PDI core chromophore not perturbed by bulky substituents. Solid film samples containing at various concentrations dispersed a poly(methyl methacrylate) (PMMA) matrix examined and...
We demonstrate highly-efficient, solution-processed small molecule solar cells with the best power conversion efficiency (PCE) of more than 5%. The active layer consists a diketopyrrolopyrrole-based donor (DPP(TBFu)2) and fullerene derivative (PC71BM) that is spin cast subsequently treated solvent vapor annealing (SVA) in air. find not all vapors lead to PCE. Solvents high pressures medium solubilities, such as tetrahydrofuran or carbon disulfide, are most suitable for SVA context organic...
ConspectusLuminescent solar concentrators (LSCs) are light harvesting devices that ideally suited to collection in the urban environment where direct sunlight is often not available. LSCs consist of highly luminescent compounds embedded or coated on a transparent substrate absorb diffuse radiation over large area. The resulting luminescence trapped waveguide by total internal reflection thin edges concentrated can be used improve performance photovoltaic devices. concept has been around for...
In this article we discuss the synthesis of four new low band-gap co-polymers based on diketopyrrolopyrrole (DPP) and benzotriazole (BTZ) monomer unit.
Environmental polarity is an important factor that drives biomolecular interactions to regulate cell function. Herein, a general method of using the fluorogenic probe NTPAN-MI reported quantify subcellular change in response protein unfolding. fluorescence selectively activated upon labeling unfolded proteins with exposed thiols, thereby reporting on extent proteostasis. also reveals collapse host proteome caused by influenza A virus infection. The emission profile contains information local...
The solid state organization of molecules is an important factor in determining the performance organic electronic devices. In bulk heterojunction (BHJ) solar cells, arrangement electron donor and acceptor materials into distinct crystalline phases ideal size distribution can lead to better power conversion efficiencies. use fluorenyl hexa-peri-hexabenzocoronene (FHBC) 2 this study has highlighted importance molecular device performance. FHBC compounds 6, 8, 10, functionalized with a series...
Abstract The organization of organic semiconductor molecules in the active layer electronic devices has important consequences to overall device performance. This is due fact that molecular directly affects charge carrier mobility material. Organic field‐effect transistor (OFET) performance driven by high while bulk heterojunction (BHJ) solar cells require balanced hole and electron transport. By investigating properties three structural variations fluorenyl hexa‐ peri ‐hexabenzocoronene...
The photophysical properties of fluorescent dyes are key determinants in the performance luminescent solar concentrators (LSCs). First-generation – coumarin, perylenes and rhodamines - used LSCs suffer from both concentration quenching solid-state small Stokes shifts which limit current LSC efficiencies to below theoretical limits. Here we show that fluorophores exhibit aggregation-induced emission (AIE) promising materials for applications. Experiments Monte Carlo simulations optical...
Polycyclic aromatic hydrocarbons (PAHs) are in a class of functional organic compounds with increasing importance electronics. Their tunable photophysical properties and typically strong intermolecular associations make them ideal materials applications where control charge mobility is essential. Hexa- peri -hexabenzocoronene (HBC) disc-shaped PAH that self-associates into columnar stacks through π–π interactions. By decorating the periphery HBC molecule various substituents, range functions...
We report highly efficient polymer solar cells (PSCs) with rhodamine 101, a conjugated zwitterion positive and negative charges on the same molecule, as electron-collection interlayer. Rhodamine 101 can be processed by solution processing techniques or thermal deposition. The interlayer simultaneously improves short-circuit current, open-circuit voltage, fill factor so to improve photovoltaic efficiency of PSCs...
In this work, a combined approach was used to obtain low-cost material for organic electronics by focusing on inexpensive monomers, short synthetic pathway, high-yielding polymerization method, low waste, and easy scalability. To achieve this, new material, poly[isoindigo-alt-3,4-ethylenedioxythiophene], synthesized using direct (hetero)arylation (DHAP). Only few steps are required no organometallic intermediates used. order make bigger step toward truly technology, continuous flow methods...
The effect of molecular weight a conjugated polymer on its photophysical properties and solar cell device performance was investigated.
Efficient light harvesting in a luminescent solar concentrator has been achieved by using excitation energy transfer from an aggregation-induced emitter to high fluorescence quantum yield fluorophore.
Maintaining high incident light absorption while minimizing luminescence reabsorption is a key challenge for organic luminescent solar concentrators (LSCs). Energy migration and trapping using light-harvesting donors low-energy highly emitting acceptor one strategy to reduce the issue. However, concentration quenching potential formation of aggregates limiting factor in realizing efficient devices. We describe synthesis novel molecularly insulated perylene diimide that can resist at...
A high-performance large-area luminescent solar concentrator (LSC) is demonstrated, fabricated via careful choice of the fluorophore system, waveguide material, and coupled photovoltaic (PV) cells. Doctor-blading was used to deposit a PMMA–dye blend film on surface PMMA planar fabricate LSC with dimensions 20 × 0.1 cm3. perylene diimide-based donor–emitter pair chosen both improve photoluminescent quantum yield reduce luminescence reabsorption. Three types cells were optimize device output...
The extensive use of halomethanes (CH3X, X = F, Cl, Br, I) as refrigerants, propellants, and pesticides has drawn serious concern due to their adverse biological atmospheric impact. However, there are currently no portable rapid accurate monitoring systems for detection. This work introduces an approach the selective sensitive detection using photoluminescence spectral shifts in cesium lead halide perovskite nanocrystals. Focusing on iodomethane (CH3I) a model system, it is shown that...
Organic light-emitting transistors (OLETs), a kind of highly integrated and minimized optoelectronic device, demonstrate great potential applications in various fields. The construction high-performance OLETs requires the integration high charge carrier mobility, strong emission, triplet exciton utilization efficiency active layer. However, it remains significant long-term challenge, especially for single component layer OLETs. Herein, successful harvesting excitons mobility emissive...
New (tetrakis)imidazolium macrocyclic receptor systems of variable cavity size have been synthesised by stepwise alkylation reactions bis(imidazolium) precursor compounds. Proton NMR titration studies reveal the macrocycles to strongly bind halide and benzoate anions, with two displaying notable selectivity for fluoride in competitive acetonitrile–water (9 : 1) solvent media.
Poly(dibenzosilole)s have been increasingly reported as an alternative to polyfluorene in organic electronic materials. show similar optical properties polyfluorene, but with improved resistance oxidation and thermal stability. Several poly(dibenzosilole)s their co-polymers incorporated into devices, such light emitting diodes solar cells. These materials shown performance over polyfluorene-based counterparts.
Indene-C70 bisadduct (IC70BA) is a high performance electron acceptor material consisting of mixture regioisomers. A single isomer the IC70BA was isolated by careful chromatographic separation. The structure this confirmed various analytical techniques including crystal X-ray analysis. showed superior to other mixtures in bulk heterojunction solar cells using poly(3-hexylthiophene) as donor material.