A5014761949- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Conducting polymers and applications
- solar cell performance optimization
- Electrochemical sensors and biosensors
- Nanowire Synthesis and Applications
- Neuroscience and Neural Engineering
- Solar Thermal and Photovoltaic Systems
- Diverse Topics in Contemporary Research
- Cultural and Historical Studies
- Fiber-reinforced polymer composites
- Silicon and Solar Cell Technologies
- Photonic Crystals and Applications
- Advanced Nanomaterials in Catalysis
- Engineering Applied Research
- Carbon Nanotubes in Composites
- Advanced optical system design
- Consumer Perception and Purchasing Behavior
- Polyoxometalates: Synthesis and Applications
- Thermal Radiation and Cooling Technologies
- Advancements in Semiconductor Devices and Circuit Design
- Chalcogenide Semiconductor Thin Films
- Advanced Sensor and Energy Harvesting Materials
Hyundai Motor Group (South Korea)
2021-2025
Hyundai Motors (South Korea)
2025
Northwestern University
2010-2019
Argonne National Laboratory
2017
National Tsing Hua University
2010
Korea Institute of Science and Technology
2008
We introduce a new class of molecular iodosalt compounds for application in next-generation solar cells. Unlike tin-based perovskite CsSnI3 and CH3NH3SnI3, which have Sn the 2+ oxidation state must be handled an inert atmosphere when fabricating cells, is 4+ state, making them stable air moisture. As example, we demonstrate that, using Cs2SnI6 as hole transporter, can successfully fabricate solid-state dye-sensitized cell (DSSC) with mesoporous TiO2 film. Doping additives helps to reduce...
A new series of metal-free organic chromophores (TPA-TTAR-A (1), TPA-T-TTAR-A (2), TPA-TTAR-T-A (3), and TPA-T-TTAR-T-A (4)) are synthesized for application in dye-sensitized solar cells (DSSC) based on a donor-π-bridge-acceptor (D-π-A) design. Here simple triphenylamine (TPA) moiety serves as the electron donor, cyanoacrylic acid acceptor anchoring group, novel tetrathienoacene (TTA) π-bridge unit. Because extensively conjugated TTA π-bridge, these dyes exhibit high extinction coefficients...
An effort to develop a new class of air-stable tin-based molecular semiconducting iodosalts for solar cell application.
This article describes the design and operation of a dye sensitized solar cell with an all carbon counter electrode plastic electrolyte. For construction electrode, conventional thin platinum catalytic layer was replaced by novel large-effective-surface-area polyaromatic hydrocarbon (LPAH) film, fluorine doped tin oxide substrate graphite film. In this way internal resistance substantially reduced efficiency can reach nearly 9% using masked frame measurement technique. To achieve such...
Metallic nanowires have served as novel materials for soft electronics due to their outstanding mechanical compliance and electrical properties. However, weak adhesion low robustness of nanowire networks substrates significantly undermine reliability, necessitating the use an insulating protective layer, which greatly limits utility. Herein, we present a versatile generalized laser-based process that simultaneously achieves strong on diverse without need layer. In this method, laser-induced...
A series of experiments have been carried out to study the effects materials quality, surface and interfacial modification, photon confinement on standard dye-sensitized solar cells. For these studies, both physical optical characterization has performed in detail. In addition, DC AC impedance measurements along with kinetic charge-transport modeling experimental results yielded information how systematically optimize cell efficiency. The same model used interpret a modification studies...
New branched alkyl tetrathienothiophene (TTAR)-based organic sensitizers with power conversion efficiency up to 11%.
The design of a dye-sensitized solar cell (DSSC) based on the simultaneous incorporation multiple dyes is examined. By investigating use porphyrin-based YD2-o-C8 and YDD6, organic chromophore TTAR, which can act as complementary absorbers, we are able to enhance capture incoming light across spectrum. This demonstrated first by using conventional DSSC architecture with liquid electrolyte performed power conversion efficiency (PCE) 11.2%, representing an improvement over cells each...
Despite the significant advantages of liquid metals, such as outstanding mechanical deformability and good electrical conductivity, their intrinsic opacity unsuitability for conventional photolithography processing have limited extensive utilization transparent conductive films. Herein, we present formation stretchable electrodes metals using a direct printing method with high resolutions. Conductive grid structures can be printed directly at room temperature linewidth below 5 µm no...
Upright solar panels (SPs) are exposed to direct sunlight within the restricted trajectory of sun's diurnal motion. These SPs encounter varying incident angles depending on orientation their faces, which can be large at high latitudes. Here, guided by geometric optics, we design a wedge-shaped microprism sheet for upright mitigate reflection losses. This achieves surface reflectance below 0.01 all and wavelengths sunlight. Furthermore, ray optics simulations that trace each principal light...
Abstract A vacancy‐ordered double perovskite, Cs 2 SnI 6 , has emerged as a promising lead‐free perovskite in the optoelectronic field. However, charge transfer kinetics mediated by its surface state remains unclear. Here, mechanism of is reported and role presence redox mediator clarified. Specifically, through subsequent charging are demonstrated cyclic voltammetry Mott–Schottky measurements, respectively. Because it expected that capable regenerating oxidized organic dyes, ‐based...
Dye-sensitized solar cells (DSSCs) offer an attractive alternative to conventional because of their lower production cost. However, the liquid electrolyte used in these is unstable solvent leakage or evaporation, and DSSCs that use a solid do not perform as well. In this paper, we present design which nanocrystal (nc)-TiO2 underlayer integrated with optically active porous three dimensional photonic crystals (3D PCs) overlayer, sequential infiltration process adopted introduce additives...
This article describes that a fluorine plasma treatment can increase the nanopore filling of plastic electrolyte in dye-sensitized solar cell to improve its performance. The one-step be used controlled way size nanopores and nanochannels TiO2 nanoparticle electrode and, at same time, passivate surfaces. In combination with treatment, sequential process has been developed allows overall conversion efficiency increased by as much 25%. plastic-based cells are found more stable compared their...
In this study, we investigate the use of a cross-linkable organosilane semiconductor, 4,4′-bis[(p-trichlorosilylpropylphenyl)phenylamino]biphenyl (TPDSi2), as hole-transporting material (HTM) for solid-state dye-sensitized solar cells (ssDSSCs) using standard amphiphilic Z907 dye which is compatible with organic HTM deposition. The properties and performance resulting are then compared contrasted ones based on poly(3-hexylthiophene) (P3HT), conventional polymeric HTM, but rather limited...
In this article, we report the design, fabrication, characterization, and simulation of three-dimensional (3D) dye-sensitized solar cells (DSSCs), using ordered indium-tin-oxide (ITO) nanorod (NR) arrays as photoanode, compare them with conventional planar (2D) DSSCs. The ITO NR array used in 3D cell greatly improves its performance by providing shorter electron pathways reducing recombination rate photogenerated electrons. We observed a 10-20% enhancement energy conversion efficiency,...
We have proposed a new dye-sensitized solar cell (DSSC) structure that employs three-dimensional (3D) photonic crystals (PCs) to enhance the light absorption and improve power conversion efficiency (PCE) by using coherent scattering phenomena. All DSSC structures with 3D PC layer exhibited higher short-circuit current densities PCE (10.8%) than those of traditional DSSCs (9.5%) because passed through photoanode was diffracted, thereby making it possible reuse it. The is improved without...
The influence from the increased income and aging society has amplified interest in well-being trend health. People tend to enjoy sports outdoor life. development of smart clothing containing heating function help maintain body temperature been actively researched after mid 2000s. However, domestic study on is severely limited. Practical designing which can be commercialized needed. purpose this develop a detachable vest design through collaboration with manufacturer. results are as follows:...
By the influence of ageing population, well-being trend, and increase interest in health, people seems to be enjoying sports outdoor life more. Followed by change consumers' style, smart clothing grafting scientific technology has increased, research on this subject is necessary. This study develop improved design band type heating vests grasping weak point currently sold vest designed manufacturer. Through process, satisfaction consumer manufacturer can increased. The results are as...
Abstract not Available.