A5064180366- Perovskite Materials and Applications
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Advanced Thermoelectric Materials and Devices
- Advanced Photocatalysis Techniques
- solar cell performance optimization
- Organic Electronics and Photovoltaics
- Pigment Synthesis and Properties
- Energy Harvesting in Wireless Networks
- Phase-change materials and chalcogenides
- Organic Light-Emitting Diodes Research
- Advanced battery technologies research
- Interactive and Immersive Displays
- Gas Sensing Nanomaterials and Sensors
- Innovative Human-Technology Interaction
- Photovoltaic Systems and Sustainability
- Molecular Junctions and Nanostructures
- Advanced Battery Materials and Technologies
- Thermal properties of materials
- Advanced Sensor and Energy Harvesting Materials
- Transition Metal Oxide Nanomaterials
- Advanced Nanomaterials in Catalysis
- Thin-Film Transistor Technologies
Swansea University
2015-2024
Bay Institute
2016-2019
Specific Technologies (United States)
2015
Neath Port Talbot Hospital
2014
Organolead trihalide perovskite solar cells based upon the co-deposition of a combined Al2O3-perovskite layer at T < 110 °C are presented. We report an average PCE = 7.2% on non-sintered Al2O3 scaffold in devices that have been manufactured from precursor containing 5 wt% nanoparticles.
Abstract Organic–inorganic hybrid perovskite solar cells (PSCs) are currently attracting significant interest owing to their promising outdoor performance. However, the ability of indoor light harvesting perovskites and corresponding device performance rarely reported. Here, potential planar PSCs in for low‐power consumption devices is investigated. Ionic liquid 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([BMIM]BF 4 ) employed as a modification layer [6,6]‐phenyl‐C61‐butyric acid methyl...
A self-adhesive laminate solar-cell electrode is presented based on a metal grid embedded in polymer film (x-y conduction) and set contact with the active layer using pressure-sensitive adhesive containing very low quantity (1.8%) of organic conductor, which self-organizes to provide z conduction grid. This ITO-free material performs an identical fashion evaporated gold high-efficiency perovskite solar cells.
Perovskite photovoltaics have shown great promise in device efficiency but also the of scalability through solution-processed manufacture. Efforts to scale perovskites been taken printable mesoporous scaffolds and slot die coating flexible substrates roll-to-roll (R2R). However, date there has no demonstration entirely R2R-coated devices due lack a compatible solution-processable back electrode; instead, high-value evaporated metal contacts are employed as post process. Here, this study,...
Tin selenide (SnSe) has attracted much attention in the field of thermoelectrics since discovery record figure merit (ZT) 2.6 ± 0.3 along b-axis material. The ZT is attributed to an ultralow thermal conductivity that arises from anharmonicity bonding. While it known nanostructuring offers prospect enhanced thermoelectric performance, there have been minimal studies literature date performance thin films SnSe. In this work, preferentially orientated porous networks film SnSe nanosheets are...
Flexible perovskite solar cells with power conversion efficiencies of up to 10.3% have been prepared using titanium foil as an electrode substrate.
Organic semiconductor materials have been promising alternatives to their inorganic counterparts in several electronic applications such as solar cells, light emitting diodes, field effect transistors well thermoelectric generators. Their low cost, weight and flexibility make them appealing future foldable electronics wearable circuits using printing techniques. In this report, we present a mini-review on the organic that used for energy generation.
The ideality factor determined by measuring the open circuit voltage (VOC) as function of light intensity is often used a means to identify dominant recombination mechanism in solar cells. However, applying this Suns-VOC technique perovskite cells problematic since VOC evolves with time way which depends on previously applied bias (Vpre), intensity, and device architecture/processing. Here we show that two structurally similar CH3NH3PbI3 devices containing either mesoporous Al2O3 or TiO2...
An extremely fast annealing technique for mixed-halide perovskite solar cells is presented. A white light pulse used to crystallise a precursor in 1.15ms compared 90 minutes using conventional hotplate.
The origins of recombination processes, particularly those that relate to current–voltage hysteresis, are still unclear in perovskite solar cells. Of particular interest is the impact different contact materials have on level hysteresis observed. This work shows there a clear link between ionic movement and interfacial recombination, which both been shown be responsible for hysteresis. When low-temperature transient photovoltage (TPV) measurements performed over period ions redistribute...
A real-time analysis by STA-FTIR of changes occurring and volatiles evolved during processing perovskites for PV technology. Solvent retention, presence chemical species decomposition materials can be evaluated to gain insight into material composition.
Abstract Since the discovery of record figure merit (ZT) 2.6 ± 0.3 in tin selenide (SnSe), material has attracted much attention field thermoelectrics. This paper reports a novel pseudo‐3D printing technique to fabricate bulk SnSe thermoelectric elements, allowing for fabrication standard configuration generators. In contrast examples presented date, this is potentially very low‐cost and allows facile, scalable, rapid fabrication. Bulk elements are produced characterized over wide range...
Small perturbation techniques have proven to be useful tools for the investigation of perovskite solar cells. A correct interpretation spectra given by impedance spectroscopy (IS), intensity-modulated photocurrent (IMPS), and photovoltage (IMVS) is key understanding device operation. The utilization a equivalent circuit extract real parameters essential make this good interpretation. In work, we present an circuit, which able reproduce general exotic behaviors found in spectra. From...
Indoor photovoltaics is one of the best sustainable and reliable energy source for low power consumption electronics such as rapidly growing Internet Things. Perovskite photovoltaic (PPV) cells with three benchmark device architectures – mesoporous PPV (mPPV) inverted (iPPV) alternative hole transporting layers (HTLs), carbon‐based (cPPV) are studied under a simulated indoor environment. The mPPV cell using typical Spiro‐OMeTAD HTL shows highest maximum density ( P max ) 19.9 μW cm −2 200...
Abstract Photovoltaics (PVs) are a critical technology for curbing growing levels of anthropogenic greenhouse gas emissions, and meeting increases in future demand low-carbon electricity. In order to fulfill ambitions net-zero carbon dioxide equivalent (CO 2 eq) emissions worldwide, the global cumulative capacity solar PVs must increase by an magnitude from 0.9 TW p 2021 8.5 2050 according International Renewable Energy Agency, which is considered be highly conservative estimate. 2020, Henry...
This paper describes the synthesis of a new, yellow triphenylamine dye, 4-[2-(4-diphenylaminophenyl)vinyl]benzoic acid] (6), with sorption maximum at 380 nm in solution for which EQE data show shifts to 420 on TiO2. The performance this dye has been measured dye-sensitized solar cell (DSC) devices, showing η = 2.6% 1 cm2 devices. Light soaking (6) shows excellent long-term stability <10% variation device over 1800 h. Full characterization are reported and intermediates used its including...
Near infrared sintering in less than 25 seconds for enhanced commercial viability of screen printed perovskite solar cells.
A rapid annealing technique for CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>perovskite solar cells is presented.
Perovskite solar cells (PSCs) have gained increasing interest for space applications. However, before they can be deployed into space, their resistance to ionizing radiations, such as high‐energy protons, must demonstrated. Herein, the effect of 150 keV protons on performance PSCs based aluminum‐doped zinc oxide (AZO) transparent conducting (TCO) is investigated. A record power conversion efficiency 15% and 13.6% obtained AZO under AM1.5G AM0 illumination, respectively. It demonstrated that...
Green solvent mixes are applied in printed mesoscopic perovskite solar cells and modules, achieving 13.8% PCE at 1 cm 2 >9% a 220 module. This shows how green engineering can aid improvement scale-up emerging technologies.
Organic semiconductor‐based photovoltaic (OPV) devices have many properties that make them attractive for indoor applications, such as tailorable light absorption, low embodied energy manufacturing and cost, structural conformality, material toxicity. Compared to their use organic solar cells (OSCs) standard outdoor harvesting, OPV (IOPV) operate at intensities, thus demonstrate different area‐scaling behavior. In particular, it appears though the performance of large‐area IOPV is much less...