A5019043207- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Organic Electronics and Photovoltaics
- Copper-based nanomaterials and applications
- Thin-Film Transistor Technologies
- solar cell performance optimization
- Silicon and Solar Cell Technologies
- ZnO doping and properties
- Semiconductor materials and interfaces
- Solid-state spectroscopy and crystallography
- 2D Materials and Applications
- Thermal Radiation and Cooling Technologies
- Mental Health Treatment and Access
- Organic Light-Emitting Diodes Research
- Semiconductor materials and devices
- Advanced Photocatalysis Techniques
- Schizophrenia research and treatment
- Psychopathy, Forensic Psychiatry, Sexual Offending
- nanoparticles nucleation surface interactions
- Transition Metal Oxide Nanomaterials
- Advanced Memory and Neural Computing
- Analytical Chemistry and Sensors
- Spectroscopy Techniques in Biomedical and Chemical Research
King Abdullah University of Science and Technology
2018-2025
Ludwig-Maximilians-Universität München
2024-2025
Renewable Energy Systems (United States)
2025
Technical University of Munich
2023
Lawrence Berkeley National Laboratory
2023
Czech Academy of Sciences, Institute of Physics
2023
University of Twente
2023
Kootenay Association for Science & Technology
2021-2023
Physical Sciences (United States)
2020-2021
Çankırı Karatekin University
2020
Growing perovskite on textured silicon Wide–band gap perovskites could boost the efficiency of solar cells by forming tandem cells, but usually must be grown a smoothed side cell because material rough light-trapping often does not fully coat surface and its texture is prone to phase separation. Hou et al. grew thick films with band ∼1.68 electron volts used passivant, 1-butanethiol, limit The had certified power conversion 25.7% negligible losses after 400 hours operation. Science , this...
If perovskite solar cells (PSCs) with high power conversion efficiencies (PCEs) are to be commercialized, they must achieve long-term stability, which is usually assessed accelerated degradation tests. One of the persistent obstacles for PSCs has been successfully passing damp-heat test (85°C and 85% relative humidity), standard verifying stability commercial photovoltaic (PV) modules. We fabricated damp heat-stable by tailoring dimensional fragments two-dimensional layers formed at room...
Abstract The performance of state‐of‐the‐art perovskite solar cells is currently limited by defect‐induced recombination at interfaces between the and electron hole transport layers. These defects, most likely undercoordinated Pb halide ions, must either be removed or passivated if cell efficiencies are to approach their theoretical limit. In this work, a universal double‐side polymer passivation introduced using ultrathin poly(methyl methacrylate) (PMMA) films. Very high‐efficiency (≈20.8%)...
The performance of perovskite solar cells with inverted polarity (p-i-n) is still limited by recombination at their electron extraction interface, which also lowers the power conversion efficiency (PCE) p-i-n perovskite-silicon tandem cells. A MgF x interlayer thickness ~1 nanometer perovskite/C 60 interface favorably adjusts surface energy layer through thermal evaporation, facilitates efficient and displaces C from to mitigate nonradiative recombination. These effects enable a champion...
To gain insight into the properties of photovoltaic and light-emitting materials, detailed information about their optical absorption spectra is essential. Here, we elucidate temperature dependence such for methylammonium lead iodide (CH3NH3PbI3), with specific attention to its sub-band gap edge (often termed Urbach energy). On basis these data, first find clear further evidence universality correlation between energy open-circuit voltage losses solar cells. Second, that CH3NH3PbI3 static,...
Abstract Tandem solar cells involving metal-halide perovskite subcells offer routes to power conversion efficiencies (PCEs) that exceed the single-junction limit; however, reported PCE values for tandems have so far lain below their potential due inefficient photon harvesting. Here we increase optical path length in films by preserving smooth morphology while increasing thickness using a method term boosted solvent extraction. Carrier collection these – as made is limited an insufficient...
In this work, we report perovskite solar cells in the planar p–i–n configuration based on single-step, anti-solvent-free, low-temperature (70 °C) slot-die-coated methylammonium lead tri-iodide (MAPbI3). The devices are fabricated hydrophobic poly(triarylamine) (PTAA) surfaces, using key strategies such as solvent engineering, enhanced ink–substrate dynamics, and surface passivation, enabling a power conversion efficiency (PCE) of 21.8%. We also adapted technique to achieve first...
Perovskite/silicon tandem solar cells offer a promising route to increase the power conversion efficiency of crystalline silicon (c-Si) beyond theoretical single-junction limitations at an affordable cost. In past decade, progress has been made toward fabrication highly efficient laboratory-scale tandems through range vacuum- and solution-based perovskite processing technologies onto various types c-Si bottom cells. However, become commercial reality, transition from laboratory industrial...
Abstract Parasitic absorption in transparent electrodes is one of the main roadblocks to enabling power conversion efficiencies (PCEs) for perovskite‐based tandem solar cells beyond 30%. To reduce such losses and maximize light coupling, broadband transparency should be improved, especially at front device. Here, excellent properties Zr‐doped indium oxide (IZRO) applications, with improved near‐infrared (NIR) response, compared conventional tin‐doped (ITO) electrodes, are shown. Optimized...
Abstract Sputtered nickel oxide (NiO x ) is an attractive hole‐transport layer for efficient, stable, and large‐area p‐i‐n metal‐halide perovskite solar cells (PSCs). However, surface traps undesirable chemical reactions at the NiO /perovskite interface are limiting performance of ‐based PSCs. To address these issues simultaneously, efficient passivation strategy by using organometallic dye molecule (N719) reported. This concurrently passivates traps, facilitates charge transport....
27%-efficient perovskite/silicon tandem solar cells are achieved in n–i–p configuration by developing novel electron and hole selective contacts, which combine high broadband transparency with efficient charge extraction.
To achieve the full potential of monolithic perovskite/silicon tandem solar cells, crystal defects and film inhomogeneities in perovskite top cell must be minimized. We discuss use methylenediammonium dichloride as an additive to precursor solution, resulting incorporation situ–formed tetrahydrotriazinium (THTZ-H + ) into lattice upon crystallization. The cyclic nature THTZ-H cation enables a strong interaction with lead octahedra through formation hydrogen bonds iodide multiple directions....
Abstract Thermally evaporated C 60 is a near-ubiquitous electron transport layer in state-of-the-art p–i–n perovskite-based solar cells. As perovskite photovoltaic technologies are moving toward industrialization, batch-to-batch reproducibility of device performances becomes crucial. Here, we show that commercial as-received (99.75% pure) source materials may coalesce during repeated thermal evaporation processes, jeopardizing such reproducibility. We find the coalescence due to oxygen...
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...
Organic, nonfullerene semiconductors capable of self-assembly and composed either anthraquinone (AQ) or naphthalenediimide (NDI) central fragments have been designed as electron-selective materials for n-i-p perovskite solar cells (PSCs). Both types self-assembled monolayer (SAM) molecules contain phosphonic acid an anchoring group, allowing covalent binding with indium tin oxide (ITO) surfaces. In particular, the NDI-based SAMs showed a more homogeneous on ITO substrate stronger band...