A5100411993- Perovskite Materials and Applications
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Advancements in Battery Materials
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Molecular Junctions and Nanostructures
- Advanced battery technologies research
- ZnO doping and properties
- Health Systems, Economic Evaluations, Quality of Life
- Thin-Film Transistor Technologies
- Advanced Battery Materials and Technologies
- Advanced Sensor and Energy Harvesting Materials
- Pharmaceutical Economics and Policy
- Solid-state spectroscopy and crystallography
- Silicon and Solar Cell Technologies
- Porphyrin and Phthalocyanine Chemistry
- Nanowire Synthesis and Applications
- Text and Document Classification Technologies
- Advanced Biosensing Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Advancements in PLL and VCO Technologies
Kwangwoon University
2024-2025
University of Suwon
2022-2023
Seoul National University
2008-2022
Seoul Media Institute of Technology
2022
Korea Institute of Science and Technology
2021
Imperial College London
2018
Sunchon National University
2017
Kookmin University
2010-2014
Abstract In this report, highly efficient and humidity‐resistant perovskite solar cells (PSCs) using two new small molecule hole transporting materials (HTM) made from a cost‐effective precursor anthanthrone (ANT) dye, namely, 4,10‐bis(1,2‐dihydroacenaphthylen‐5‐yl)‐6,12‐bis(octyloxy)‐6,12‐dihydronaphtho[7,8,1,2,3‐ nopqr ]tetraphene (ACE‐ANT‐ACE) 4,4′‐(6,12‐bis(octyloxy)‐6,12‐dihydronaphtho[7,8,1,2,3‐ ]tetraphene‐4,10‐diyl)bis( N , ‐bis(4‐methoxyphenyl)aniline) (TPA‐ANT‐TPA) are presented....
Recently, SnO2 has been noticed as a promising material for electron-transport layer of planar perovskite solar cells. presents advantages low-temperature processability and high power-conversion efficiency, understanding the correlations between properties device performance will provide key to realize more efficient Herein, uniform using nanoparticles is fabricated, effect annealing on solar-cell discussed. Solar cells with processed SnO2-nanoparticle (below 120 °C or even at room...
The study of the inorganic hole-transport layer (HTL) in perovskite solar cells (PSCs) is gathering attention because drawback conventional PSC design, where organic HTL with salt dopants majorly participates degradation mechanisms. On other hand, secures better stability, while it offers difficulties deposition and interfacial control to realize high-performing devices. In this study, we demonstrate polydimethylsiloxane (PDMS) as an ideal polymeric interlayer which prevents improves both...
Abstract Poly(3,4‐ethylenedioxythiophene) (PEDOT), particularly in its complex form with poly(styrene sulfonate) (PEDOT:PSS), stands out as a prominent example of an organic conductor. Renowned for exceptional conductivity, substantial light transmissibility, water processability, and remarkable flexibility, PEDOT:PSS has earned reputation leading conductive polymer. This study explores the unique effects two additives, Bisphenol A diglycidyl ether (DGEBA) Dimethyl sulfoxide (DMSO), on PSS...
Herein, underlying factors for enabling efficient and stable performance of perovskite solar cells are studied through nanostructural controls organic–inorganic halide perovskites. Namely, MAPbI3, (FA0.83MA0.17)Pb(I0.83Br0.17)3, (Cs0.10FA0.75MA0.15)Pb(I0.85Br0.15)3 perovskites (abbreviated as MA, FAMA, CsFAMA, respectively) examined with a grain growth control thermal annealing. FAMA- CsFAMA-based result in photovoltaic performance, while MA sensitively dependent on the size dominated by...
Abstract Studies of organometallic perovskite solar cells have remarkably progressed within several years, but there still remain concerns poor stability and insufficient power conversion efficiency (PCE). To overcome these limitations, modification the material should be addressed. Herein, imidazole (C 3 H 4 N 2 ) is demonstrated as an A ‐site solute for conventional methyl‐ammonium lead iodide (CH NH PbI ). As aromatic hydrocarbon diamine species with a small ionic radius, appropriately...
Abstract Operational stability of perovskite solar cells has been a challenge from the beginning research. In general, humidity and heat are most well‐known degradation sources for perovskites, requiring ideal design chemistry to withstand them. Although triple‐cation (Cs 0.05 (FA 0.85 MA 0.15 ) 0.95 Pb(I Br 3 already introduced as stable material, high reactivity methylammonium formamidinium in cation sites demands further modification. Herein, 1,2,4‐triazole is suggested an effective...
Interfacial degradation in perovskite solar cells is a critical issue affecting long-term stability for future commercialization. In particular, and an organic hole-transport layer (HTL) react easily when the device exposed to extreme operating conditions (heat, light, air). To prevent degradation, inorganic CuSCN HTL has emerged as alternative, yet interfacial reactivity still not clearly elucidated. Herein, Cu2O are coutilized form efficient stable HTL. While uniform film formation using...
Abstract In order to realize both efficient and stable perovskite solar cells, designing electron transport layer (ETL) is of crucial importance withstand constant light illumination thermal stress while maintaining high charge extractability. Herein, commonly used SnO 2 nanoparticle‐based ETL for cells modified by ionic‐salt ammonium chloride (NH 4 Cl) tin dihydrate (SnCl ∙2H O) as additives, which easily fabricated simple one‐step spin coating single precursor solution. With the presence...
Organic-inorganic hybrid perovskite solar cells have emerged as promising candidates for next-generation cells. To attain high photovoltaic efficiency, reducing the defects in perovskites is crucial along with a uniform coating of films. Also, evaluating quality synthesized via facile and adequate methods important well. Herein, CH3NH3PbI3 were by applying second solvent dripping to nonstoichiometric precursors containing excess CH3NH3I. The resulting films exhibited larger average grain...
High power conversion efficiency and device stabilization are two major challenges for CH3NH3PbI3 (MAPbI3) perovskite solar cells to be commercialized. Herein, we demonstrate a diffusion-engineered synthesis method using MAI/ethanol dipping, compared it the conventional from MAI/iso-propanol. Diffusion of MAI/C2H5OH into PbCl2 film was observed more favorable than that MAI/C3H7OH. Facile ethanol highly-crystalline MAPbI3 with minimized impurities boosted 5.86% 9.51%. Additionally, further...
Abstract Herein, solution‐processible inorganic hole‐transport layer (HTL) of a perovskite solar cell that consists CuGaO 2 nanoparticles and CuSCN, which leads to an improved device performance as well long‐term stability, is reported. Uniform films are prepared by first treating with aminosilane well‐dispersed solution, followed spin‐coating the suspension. Subsequent CuSCN solution onto forms smooth HTL excellent coverage electrical conductivity. Comparing reference HTL, /CuSCN improves...
High-mobility inorganic CuCrO2 nanoparticles are co-utilized with conventional poly(bis(4-phenyl)(2,5,6-trimethylphenyl)amine) (PTAA) as a hole transport layer (HTL) for perovskite solar cells to improve device performance and long-term stability. Even though can be readily synthesized by hydrothermal reaction, it is difficult form uniform HTL alone due the severe agglomeration of nanoparticles. Herein, both PTAA sequentially deposited on simple spin-coating process, forming excellent...
Abstract Perovskite solar cells (PSCs) are in the spotlight as promising renewable energy devices by their appealing properties. However, they face challenges both power conversion efficiency (PCE) and long‐term stability. The presence of surface defects PSCs is a significant obstacle to achieving high stability, these cause nonradiative recombination degradation. Herein, novel double‐side passivation method using phenyltrimethylammonium iodide (PTMAI) salt applied remove electronic...
South Korea's National Health Insurance recently announced a reform in pharmaceutical reimbursement, with the purpose of increasing rational resource use drug spending. The new policy aims to take cost-effectiveness and budget impact newly introduced drugs into account payment decisions. If is implemented, Korea will be first Asian country officially adopt economic evaluation as tool for allocation health care. This paper looks at background, objectives, expected outcomes, potential issues,...
Because of the facile formation defects in organometal halide perovskites, defect passivation has become an important prerequisite for stable and efficient perovskite solar cell (PSC). Regarding that ionic perovskites play a significant role on performance stability PSCs, we introduce lithium fluorides as effective passivators based their strong characteristics small radii. Both Li+ F– are observed to successfully incorporate within layer, improving device performances with best efficiency...