A5043495706- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Molecular Junctions and Nanostructures
- Quantum-Dot Cellular Automata
- Organic Light-Emitting Diodes Research
- Silicon Nanostructures and Photoluminescence
- Chalcogenide Semiconductor Thin Films
- Quantum and electron transport phenomena
- Gold and Silver Nanoparticles Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Nanowire Synthesis and Applications
University of Groningen
2021-2025
CIC nanoGUNE
2020
An analysis is provided of MA-free Sn/Pb-perovskite solar cells fabricated using PEDOT:PSS, 2PACz, and Br-2PACz as the HTL. efficiency 19.51% has been reached by with improved device stability, thanks to suppressed recombination.
Abstract Recently, carbazole‐based self‐assembled monolayers (SAMs) have been utilized as hole transport layers (HTLs) in perovskite solar cells. However, their application Sn or mixed Sn/Pb cells has hindered by the poor wettability of precursor solution on carbazole surface. Here a bilayer (SAB) comprising covalent monolayer (Br‐2PACz) and noncovalent wetting layer (4CzNH 3 I) HTL Cs 0.25 FA 0.75 0.5 Pb I cell is proposed. It demonstrated that completely solves problem due to higher...
Abstract The efficiency of organic solar cells has raised drastically in the past years. However, there is an undeniable lack hole transport layers that can provide high carrier selectivity, low defect density, and processing robustness, simultaneously. In this work, issue addressed by studying generation surface passivation nickel oxide (NiO x ). It revealed oxidation state species on NiO lowers contact resistance but hinders charge extraction when employed as layer cells. By using them...
Abstract Transport layers are of outmost importance for thin‐film solar cells, determining not only their efficiency but also stability. To bring one these technologies toward mass production, many factors besides and stability become important, including the ease deposition in a scalable manner cost different material's layers. Herein, highly efficient organic cells (OSCs), inverted structure (n‐i‐p), demonstrated by using as electron transport layer (ETL) tin oxide (SnO 2 ) deposited...
The development of an environmentally friendly fabrication process for non-fullerene acceptor organic solar cells is essential condition their commercialization. However, devices fabricated by processing the active layer with green solvents still struggle to reach, in terms efficiency, same performance as those halogenated solvents. reason behind this non-optimal nanostructure obtained Additives solution have been used fine-tune and improve cells. Therefore, identification non-halogenated...
Abstract The phase‐transfer ligand exchange of PbS quantum dots (QDs) has substantially simplified device fabrication giving hope for future industrial exploitation. However, this technique when applied to QDs large size (>4 nm) gives rise inks with poor colloidal stability, thus hindering the development photodetectors in short‐wavelength infrared range. Here, it is demonstrated that methylammonium lead iodide ligands can provide sufficient passivation up 6.7 nm, enabling a minimum...
Abstract In organic solar cells, the interfaces between photoactive layer and transport layers are critical in determining not only efficiency but also their stability. When solution‐processed metal oxides employed as electron layer, presence of surface defects can downgrade charge extraction, lowering photovoltaic parameters. Thus, understanding origin these is essential to prevent detrimental effects. Herein, it shown that a widely reported commercially available colloidal SnO 2 dispersion...
Abstract The coupling of diverse degrees freedom opens the door to physical effects that go beyond each them individually, making multifunctionality a much sought‐after attribute for high‐performance devices. Here, multifunctional operation single‐layer p‐type organic device, displaying both spin transport and photovoltaic effect at room temperature on transparent substrate, is shown. generated photovoltage almost three times larger than applied bias device which facilitates modulation...
The control of morphology and microstructure during after the active layer processing bulk-heterojunction solar cells is critical to obtain elevated fill factors overall good device performance. With recent development non-fullerene acceptors, wide attention has been paid improve miscibility, solubility nanoscale separation by laborious molecular design processes use additives. Nonetheless, several post-processing strategies can equally contribute an optimum phase even enhanced...
SnO2 Nanoparticles In article number 2307958, Maria Antonietta Loi and co-workers show that washing of the surface ions from layer improves interface properties organic solar cells.