A5015058876- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Photonic and Optical Devices
- Photorefractive and Nonlinear Optics
- Advanced Fiber Laser Technologies
- Thin-Film Transistor Technologies
- solar cell performance optimization
- Chalcogenide Semiconductor Thin Films
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Optical Imaging Technologies
- Optical Coherence Tomography Applications
- Molecular Junctions and Nanostructures
- Digital Holography and Microscopy
- Silicon and Solar Cell Technologies
- Organic Light-Emitting Diodes Research
- Semiconductor materials and interfaces
- Advanced Optical Sensing Technologies
- Smart Materials for Construction
- Fullerene Chemistry and Applications
- Thermal Radiation and Cooling Technologies
- Copper-based nanomaterials and applications
- Nanowire Synthesis and Applications
- Nanocluster Synthesis and Applications
King Abdullah University of Science and Technology
2017-2024
Friedrich-Alexander-Universität Erlangen-Nürnberg
2014-2023
Kootenay Association for Science & Technology
2018
Instituto de Telecomunicações
2013-2017
Instituto Superior Técnico
2013-2017
Centre for Materials for Electronics Technology
2014-2017
University of Washington
2010-2017
S&N (Germany)
2016
University of Cologne
2005-2011
Seattle University
2010
Abstract Organic solar cells that are free of burn‐in, the commonly observed rapid performance loss under light, presented. The based on poly(3‐hexylthiophene) (P3HT) with varying molecular weights and a nonfullerene acceptor (rhodanine‐benzothiadiazole‐coupled indacenodithiophene, IDTBR) fabricated in air. P3HT:IDTBR light‐soaked over course 2000 h lose about 5% power conversion efficiency (PCE), stark contrast to [6,6]‐Phenyl C61 butyric acid methyl ester (PCBM)‐based whose PCE shows...
Light induced fullerene dimerization is controlled by both the and polymer morphology of organic solar cells.
We present a novel ternary organic solar cell with an uncommonly thick active layer (∼300 nm), featuring thickness invariant charge carrier recombination and delivering 11% power conversion efficiency (PCE).
The transfer from P3HT based fullerene free OPV lab cells with IDTBR as acceptor material to fully solution processed roll-to-roll compatible modules is reported.
Perovskite/silicon tandem solar cells have gained significant attention as a viable commercial solution for ultra-high-efficiency photovoltaics. Ongoing research efforts focus on improving device performance, stability, and upscaling. Yet, paradoxically, their outdoor behavior remains largely unexplored. Here, we describe performance over complete calendar year outdoors in the area of Red Sea coast Saudi Arabia, which represents hot humid environment. After 1 year, our test retains 80% its...
By embedding various types of colloidal silver nanoprisms into both interfacial layers, significant and general enhancement in the device performances multiple polymer solar cell systems is demonstrated. The increased efficiencies are due to cooperative optical enhancement, resulting enhanced short-circuit current densities. These results provide a powerful, general, tunable means enhance light harvesting at desired wavelength bands existing emerging organic photovoltaic materials.
Abstract This review describes recent advances and applications in the field of organic photorefractive materials, an interesting area electronics promising candidate for various aspects photonic applications. We describe current state knowledge about processes involved formation gratings materials focus on chemical photo‐physical material structures employed low glass‐transition temperature amorphous composites glasses. State‐of‐the art are highlighted demonstrations relying reversible...
Plasmonic metal nanoparticles have been used to enhance the performance of thin-film devices such as organic photovoltaics based on polymer/fullerene blends. We show that silver nanoprisms accumulate long-lived negative charges when they are in contact with a photoexcited bulk heterojunction blend composed poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester (P3HT/PCBM). report both charge modulation and electroabsorption spectra solid-state compare these photoinduced absorption...
Here we demonstrate a maximum AVT of 46% with an efficiency 3.6%, which is the highest combination and transparency for full device stack to date.
We present measured imputed efficiencies for 4-terminal perovskite–silicon solar cells of: 26.7% and 25.2% PERL–perovskite IBC–perovskite, respectively.
Abstract The solution‐processed organic photodetectors underpin an emerging technology with inherent implications in the biological sensors and imaging displays. Conventional photodiodes, core element of photodetector, rely mainly on fullerene‐based acceptors, which combination high middle bandgap donors, limit spectral photosensitivity to visible range. Even case low polymers oscillator strength thus extinction coefficient are usually limited NIR due nature molecular orbital hybridization....
Perovskite/silicon tandem solar cells are emerging as a high-efficiency and prospectively cost-effective technology with great promise for deployment at the utility scale. However, despite remarkable performance progress reported lately, assuring sufficient device stability—particularly of perovskite top cell—remains challenge on path to practical impact. In this work, we analyze outdoor encapsulated bifacial perovskite/silicon tandems, by carrying out field-testing in Saudi Arabia. Over six...
We report on organic tandem solar cells with an extrapolated lifetime in excess of one decade.
Abstract Organic semiconductors are in general known to have an inherently lower charge carrier mobility compared their inorganic counterparts. Bimolecular recombination of holes and electrons is important loss mechanism can often be described by the Langevin model. Here, device physics bulk heterojunction solar cells based on a nonfullerene acceptor (IDTBR) combination with poly(3‐hexylthiophene) (P3HT) elucidated, showing unprecedentedly low bimolecular rate. The high fill factor observed...
Flexible organic tandem solar modules with high geometric fill factors were constructed by utilizing a fully roll-to-roll compatible processing.
This work introduces nickel(<sc>ii</sc>) dibutyldithiocarbamate as a broadband and universal antioxidant for conjugated polymer semiconductors.
Understanding the degradation and failure mechanisms of organic photovoltaic devices is a key requirement for this technology to mature toward reliable product. Here, an investigation on accelerated temperature moisture long‐term stability testing (>20 000 h) inverted glass‐encapsulated poly(3‐hexylthiophene)/phenyl‐C 61 ‐butyric acid methyl ester solar cells presented. The kinetics analyzed using Arrhenius model resulting activation energy diffusion water measured be ≈43 kJ mol −1 ....
We demonstrate an innovative solution-processing fabrication route for organic and perovskite solar modules.
Trap-assisted recombination is one of the main loss mechanisms in bulk-heterojunction (BHJ) solar cells. Results suggest that introducing a near infrared (NIR) polymer into 2,3-bis(3-(octyloxy)phenyl)quinoxaline (PIDTTQ):[6,6]-phenyl C70 butyric acid methyl ester (PC70BM) host system suppresses trap-assisted binary blend, leading to significant improvement ≈60% power conversion efficiency for ternary organic cells at low light intensity. As service our authors and readers, this journal...
Abstract A multipurpose interconnection layer based on poly(3,4‐ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:PSS), and d ‐sorbitol for monolithic perovskite/silicon tandem solar cells is introduced. The of independently processed silicon perovskite subcells a simple add‐on lamination step, alleviating common fabrication complexities devices. It demonstrated experimentally theoretically that PEDOT:PSS an ideal building block manipulating the mechanical electrical...
Abstract A critical bottleneck for improving the performance of organic solar cells (OSC) is minimising non-radiative losses in interfacial charge-transfer (CT) state via formation hybrid energetic states. This requires small offsets often detrimental high external quantum efficiency (EQE). Here, we obtain OSC with both voltage (0.24 V) and photocurrent (EQE > 80%) simultaneously minimised. The CT states separate into free carriers ≈40-ps time constant. We combine device spectroscopic...
Resonance Raman spectra have been obtained for the organic solar cell blend poly(3-hexylthiophene)/[6,6]-phenyl C61-butyric acid methyl ester (P3HT/PCBM) at excitation wavelengths ranging from 364 to 633 nm, in both presence and absence of triangular Ag nanoprisms with varying plasmon resonance frequencies. For ∼35 nm polymer films deposited over nanoprisms, enhance sample-averaged scattering intensities by factors 2–20 depending on wavelength nanoprism density. The weak fluorescence is...