A5003477374- Perovskite Materials and Applications
- Conducting polymers and applications
- Organic Light-Emitting Diodes Research
- Quantum Dots Synthesis And Properties
- Photochemistry and Electron Transfer Studies
- Organic Electronics and Photovoltaics
- Chalcogenide Semiconductor Thin Films
- Spectroscopy and Quantum Chemical Studies
- Luminescence and Fluorescent Materials
- Electrochemical Analysis and Applications
- Photodynamic Therapy Research Studies
- Radical Photochemical Reactions
- Porphyrin and Phthalocyanine Chemistry
- Nanoplatforms for cancer theranostics
- DNA and Nucleic Acid Chemistry
- Thin-Film Transistor Technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Antimicrobial agents and applications
- Photopolymerization techniques and applications
- Polydiacetylene-based materials and applications
- Analytical Chemistry and Sensors
- Nanocomposite Films for Food Packaging
- Ionic liquids properties and applications
- Asymmetric Hydrogenation and Catalysis
- Protein Interaction Studies and Fluorescence Analysis
CSIRO Manufacturing
2016-2025
Commonwealth Scientific and Industrial Research Organisation
2008-2024
Materials Technology (United Kingdom)
2023
Health Sciences and Nutrition
2019
Clayton Foundation
2018
Monash University
2014-2018
Materials Science & Engineering
2007-2013
Kyoto Institute of Technology
1991-2008
Chiba Institute of Science
2008
Kumaun University
2008
Organic–inorganic lead halide perovskite solar cells are promising alternatives to silicon‐based due their low material costs and high photovoltaic performance. In this work, thin continuous films combined with copper(I) iodide (CuI) as inorganic hole‐conducting form a planar device architecture. A maximum conversion efficiency of 7.5% an average 5.8 ± 0.8% is achieved which, our knowledge, the highest reported for CuI‐based devices structure. contrast related 2,2′,7,7′‐tetrakis‐( N ,...
A facile method to produce metal halide perovskite solar cells with improved stability and efficiency.
Abstract 2D organic–inorganic hybrid Ruddlesden–Popper perovskites have emerged recently as candidates for the light‐absorbing layer in solar cell technology due largely to their impressive operational stability compared with 3D‐perovskite counterparts. The methods reported date preparation of efficient perovksite layers cells involve a nonscalable spin‐coating step. In this work, facile, spin‐coating‐free, directly scalable drop‐cast method is depositing precursor solutions that...
Abstract The rapid development of organic-inorganic hybrid perovskite solar cells has resulted in laboratory-scale devices having power conversion efficiencies that are competitive with commercialised technologies. However, yet to make an impact beyond the research community, translation large-area fabricated by industry-relevant manufacturing methods remaining a critical challenge. Here we report first demonstration cell modules, comprising serially-interconnected cells, produced entirely...
Impedance spectroscopy (IS) is emerging as a valuable tool for the characterization of perovskite-based solar cells (PSCs). However, earlier reports IS response mesoscopic PSCs have revealed notable discrepancies, with interpretation their spectra having been generalized to planar PSC devices despite fundamental differences in device operation. The present study analyzes impedance through employing variety constituent layers. Distinctive high-frequency and low-frequency features are observed...
Remarkable power conversion efficiencies (PCE) of metal–halide perovskite solar cells (PSCs) are overshadowed by concerns about their ultimate stability, which is arguably the prime obstacle to commercialization this promising technology. Herein, problem addressed introducing ethane‐1,2‐diammonium ( + NH 3 (CH 2 ) , EDA 2+ cations into methyl ammonium MA lead iodide perovskite, enables, inter alia, systematic tuning morphology, electronic structure, light absorption, and photoluminescence...
We report the discovery of a tandem catalytic process to reduce energy demanding substrates, using [Ir(ppy)2(dtb-bpy)]+ (1+) photocatalyst. The immediate products photoinitiated electron transfer (PET) between 1+ and triethylamine (TEA) undergo subsequent reactions generate previously unknown, highly reducing species (2). Formation 2 occurs via reduction semisaturation ancillary dtb-bpy ligand, where TEA radical cation serves as an effective hydrogen atom donor, confirmed by nuclear magnetic...
Abstract Despite the recent unprecedented development of efficient dopant‐free hole transporting materials (HTMs) for high‐performance perovskite solar cells (PSCs) on small‐area devices (≤0.1 cm 2 ), low‐cost HTMs large‐area PSCs (≥1 ) with high power conversion efficiencies (PCEs) have rarely been reported. Herein, two novel HTMs, 3,3′,6,6′ (or 2,2′,7,7′)‐tetrakis( N , ′‐di‐p‐methoxyphenylamine)‐ ′‐bicarbazole (3,6 BCz‐OMeTAD or 2,7 BCz‐OMeTAD), are synthesized via an extremely simple...
Abstract Introducing layered quasi-2D perovskite phases into a conventional 3D light-absorbing matrix is promising strategy for overcoming the limited environmental stability of solar cells. Here, we present simple drop-casting method preparing hybrid films comprising both and quasi-3D phases, formed using phenylethylammonium or iso-butylammonium as spacer cations. The film morphology, phase purity, crystal orientation quasi-2D/3D are improved significantly by applying N 2 blow-drying step,...
Abstract The high‐power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) on lab‐scale devices trigger the need to develop scalable manufacturing processes accelerate their commercialization transition. A roll‐to‐roll (R2R) vacuum‐free printing flexible substrates allows for high‐volume and low‐cost which is especially well‐suited PSCs due its solution processibility low‐temperature annealing requirements. Herein, a facile hot deposition technique reported fabricate...
For the first time, formamidinium–caesium perovskite thin films were successfully synthesised from a lead acetate-based precursor. Efficient solar cells (21.0%) and modules (18.8%) have been produced using blade coating techniques.
High efficiency and environmental stability are mandatory performance requirements for commercialization of perovskite solar cells (PSCs). Herein, efficient centimeter-scale PSCs with improved were achieved by incorporating an additive-free 2,2′,7,7′-tetrakis[N,N-di(p-methoxyphenyl)amino]-9,9′-spirobifluorene (spiro-OMeTAD) hole-transporting material (HTM) through simply substituting the usual chlorobenzene solvent pentachloroethane (PC). A stabilized power conversion (PCE) 16.1% under...
The low power-conversion efficiency (PCE) and reproducibility reported to date for roll-to-roll (R2R)-fabricated perovskite solar cells (PSCs) results from difficulty in controlling film quality. Here, we present a systematic comparison of the hot-deposition method, which induces crystal-growth-driven (CGD) formation, anti-solvent nucleation-driven (ND) one-step formation. Perovskite films produced by two methods show markedly different micro-structural optoelectronic properties; however,...
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...
Abstract The search for lead‐free alternatives to lead‐halide perovskite photovoltaic materials resulted in the discovery of copper(I)‐silver(I)‐bismuth(III) halides exhibiting promising properties optoelectronic applications. present work demonstrates a solution‐based synthesis uniform Cu x AgBiI 4+ thin films and scrutinizes effects on phase composition, dimensionality, properties, performance. Formation pure 3D CuAgBiI 5 at = 1, 2D 2 6 2, mix two 1 < is demonstrated. Despite lower...
The thin physical profile of perovskite-based solar cells (PSCs) fabricated on flexible substrates provides the prospect a disruptive increase in specific power (power-to-mass ratio), an important figure-of-merit for to be used space applications. In contrast recent reports applications PSCs which focus rigid glass-based devices, this work we investigate suitability low-earth orbit (LEO) applications, where perovskite layer was prepared using either Ruddlesden–Popper precursor composition...
A visible-light photocalytic method for the chemoselective transfer hydrogenation of imines in batch and continuous flow is described. The reaction utilizes Et3N as both hydrogen source single-electron donor, enabling selective reduction derived from diarylketimines containing other reducible functional groups including nitriles, halides, esters, ketones. dual role was confirmed by fluorescence quenching measurements, transient absorption spectroscopy, deuterium-labeling studies....
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of solvent on excited-state intramolecular proton transfer in benzotriazole photostabilizersK. P. Ghiggino, A. D. Scully, and I. H. LeaverCite this: J. Phys. Chem. 1986, 90, 21, 5089–5093Publication Date (Print):October 1, 1986Publication History Published online1 May 2002Published inissue 1 October 1986https://pubs.acs.org/doi/10.1021/j100412a042https://doi.org/10.1021/j100412a042research-articleACS PublicationsRequest reuse...