A5065894578- Perovskite Materials and Applications
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Luminescence and Fluorescent Materials
- Porphyrin and Phthalocyanine Chemistry
- Catalytic C–H Functionalization Methods
- Polyoxometalates: Synthesis and Applications
- Fullerene Chemistry and Applications
- Nanoplatforms for cancer theranostics
- Inorganic and Organometallic Chemistry
- Catalytic Cross-Coupling Reactions
- Advanced Nanomaterials in Catalysis
- Geological and Geochemical Analysis
- Chalcogenide Semiconductor Thin Films
- Sulfur-Based Synthesis Techniques
- Photochromic and Fluorescence Chemistry
- Molecular Sensors and Ion Detection
- Crystallization and Solubility Studies
- Radical Photochemical Reactions
- X-ray Diffraction in Crystallography
- earthquake and tectonic studies
- Chemical Synthesis and Reactions
Indian Institute of Chemical Technology
2016-2025
Academy of Scientific and Innovative Research
2016-2025
OU Health Stephenson Cancer Center
2023-2024
Oklahoma State University Oklahoma City
2023-2024
University of Allahabad
2005-2023
Graphic Era University
2023
University of Oklahoma
2023
Kookmin University
2023
Banaras Hindu University
2023
University of Hyderabad
2015-2021
Abstract Enhancement of light‐harvesting efficiency (LHE) in the red/near‐IR (NIR) region (600–1000 nm) solar spectrum is a challenge to improvement photovoltaic performances dye‐sensitized cells (DSSCs). Therefore, design and development effective red/NIR photosensitizers are currently hot topic DSSCs. BODIPY dyes can offer magnificent characteristics such as sharp moderately strong absorption, large quantum yields, long excited state lifetimes, good solubility easy chromatographic...
Conductive inks have been widely investigated in recent years due to their popularity printed electronics (PE) and flexible (FE).
Conductive inks are a recent advance in electronics and have promising future applications flexible smart applications.
Carbon nanomaterials have been extensively researched in the past few years owing to their interesting properties. The massive research efforts resulted emergence of carbon dots, which belong family. dots (C-dots) garnered attention researchers mainly due convenient availability from organic as well inorganic materials and also novel properties they exhibit. C-Dots said overcome era quantum referring levels toxicity biocompatibility. In this review, we focus on discovery C-dots, structure...
The cobalt-catalyzed cross-coupling of alkyl (pseudo)halides with Grignard reagents in the presence 1,3-butadiene as a ligand precursor and LiI is described. Sterically congested quaternary carbon centers could be constructed by using tertiary reagents. This reaction proceeds via an ionic mechanism inversion stereochemistry at reacting site halide compatible various functional groups. use both was essential for achieving high yields selectivities.
Porphyrins are major sensitizers in dye-sensitized solar cells (DSSCs) and result very high power conversion efficiency; however, aggregation tendency visible range absorption prevent realistic applications. Thus, designing of novel porphyrins based is essential to resolve the current existing issues. In this context, seven D−π–A porphyrin dyes (LG1–LG7) engineered with 3-ethynyl phenothiazine tethered at meso-position π-spacers, such as 4-ethynyl phenyl (LG1), 5-ethynylthiophene (LG2),...
Non-fullerene organic solar cells employing small molecule acceptors have recently crossed the PCE of 17% through design and synthesis efficient acceptor materials.
We report a joint experimental and computational work on new organic donor-acceptor dye sensitizers in which carbazole (CZ) phenothiazine (PTZ) units are linked together by an alkyl C6H13, while two different anchoring groups employed: the cyanoacrylic acid (CS1A, CSORG1) rhodanine-3-acetic (CS4A, CSORG4). The CZ moiety has multiple roles of (i) acting as extra-electron donor portion, providing more electron density PTZ; (ii) suppressing back-electron transfer from TiO2 to electrolyte...
Curcumin is a promising wound healing agent but its clinical application limited due to hydrophobicity and lack of stability. In this article, we report the results study on efficacy curcumin conjugated hyaluronic acid (HA) which natural polysaccharide known influence process. Studies proliferation, antioxidant activity scratch carried out in human keratinocyte cells revealed that HA-conjugated treatment enhanced cell decreased oxidative damage induced by H2O2 also improved migration wounds...
Halide based perovskite materials have attracted attention as a promising candidate for the optoelectronic applications, predominantly in photovoltaic device, due to their superior potential properties such high absorption coefficient, direct bandgap, long carrier lifetime, balanced hole and electron mobility, low cost, facile deposition techniques, etc. Despite of this, fundamental understanding physicochemical is still debatable scientific community. In this review article, we provide deep...
The recent advances in lead-free perovskites (LFP) for solar cell applications have been discussed and their properties are compared with lead-based perovskites. In addition, reasons low efficiency of LFP comprehensively discussed.
The evolution of harvesting tools and equipment for horticultural crops has significantly shaped agricultural practices over time. This review paper provides a comprehensive analysis the journey from historical methods to modern innovations in technology. intricate interplay between technological advancements is explored, highlighting pivotal developments that have revolutionized crop harvesting. Starting with traditional employed past, we delve into challenges faced by early horticulturists...
Two spiro-OMeTAD analogues featuring a spiro[fluorene-9,9-xanthene] central core have been designed and applied in PSCs as dopant-free HTLs. The device based on SP-SMe reveals better performance operational stability than the spiro-OMeTAD-based device.
The hole transporting materials in perovskite solar cells have received significant attention recent years as a promising capable of developing high performance photovoltaic devices at low cost.
Abstract A novel Ru π‐expanded terpyridyl sensitizer, referred to as HIS‐2, is prepared based on the molecular design strategy of substitution with a moderately electron‐donating 4‐methylstyryl group onto ligand. The HIS‐2 dye exhibits slightly increased metal‐to‐ligand charge transfer (MLCT) absorption at around 600 nm and an intense π–π* in UV region compared black dye. Density functional theory calculations reveal that lowest unoccupied orbital (LUMO) distributed over terpyridine...
Flexible and low-weight thin-film perovskite solar cells have attracted considerable attention for developing large-area, roll-to-roll differently shaped photovoltaics with improved power conversion efficiencies. In this review, we describe how researchers adopted different approaches to enhance the device performance of flexible compete rigid substrates tailored electron/hole transport materials substrates.
Tuning the parameters to enhance efficiencies of a novel set metal free sensitizers for dye sensitized solar cells (DSSC) is carried out by varying π-conjugated spacers that link donor benzocarbazole acceptor cyanoacrylic acid. The molecules are synthesized different combinations spacers, namely fluorene-thiophene (BFT), fluorene-furan (BFF), fluorene-phenyl (BFB), and thiophene-phenyl (BTB). molar extinction coefficients all dyes high which attributed benzocarbazole, but it higher in...
Three porphyrin dyes, P1, P2 and P3, bearing one, two four pyridyl groups, respectively, in the meso positions, acting as electron acceptor anchoring were synthesized, characterized investigated sensitizers for fabrication of dye sensitized solar cells (DSSCs). The overall power conversion efficiencies (PCEs) DSSCs based on these dyes lay range 2.46–3.9% using a 12 μm thick TiO2 photoanode. Porphyrin achieved maximum performance, which can be rationalized by high loading, efficient...
Organometal halide perovskites offer dual potential properties as a light harvester and at the same time hole conductor in inorganic-organic hybrid heterojunction solar cells. The sequential deposition route provides power conversion efficiency of 15% under standard AM1.5G test conditions. In this perspective, we will briefly summarize development perovskite-sensitized cells from their first report up to present.
Abstract A new low‐band gap dyad DPP‐Ful, which consists of covalently linked dithiafulvalene‐functionalized diketopyrrolopyrrole as donor and fullerene (C 60 ) the acceptor, has been designed synthesized. Organic solar cells were successfully constructed using DPP‐Ful an active layer. This system a record power‐conversion efficiency (PCE) 2.2 %, is highest value when compared to reported single‐component organic cells.