Organic thermally activated delayed fluorescence (TADF) materials have been widely investigated due to their impressive electronic properties and applied potential for the third generation of organic light-emitting diodes (OLED). We present organic TADF material () based on the strained benzoguanidine donor and compare it with the benchmark carbazole-based material (). Extended π-conjugation in material results in yellow-green luminescence at 512 nm with a fast radiative rate of 5.5 × 10 s and a photoluminescence quantum yield of 46% in methylcyclohexane solution. Such a nitrogen-rich material has a significantly stabilized highest occupied molecular orbital (HOMO) at -6.4 eV while the lowest unoccupied molecular orbital (LUMO) at -4.0 eV, indicating potential suitability for application as the electron transport layer or TADF class III emitter in OLEDs.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10494236 | PMC |
| http://dx.doi.org/10.3762/bjoc.19.95 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Utilization of refuse-derived fuel in industrial applications: Insights from Uttar Pradesh, India.
Heliyon
January 2025
Interdisciplinary Research Center for Construction and Building Materials, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
Urbanization and population growth in India have quickened, leading to an annual generation of around 62 million tonnes of municipal solid waste (MSW). Improper management of organic waste presents a major environmental problem due to air and water pollution, soil contamination and greenhouse gas production. This research aims to develop refuse-derived fuel (RDF) as a viable option, converting waste into a high-calorific energy carrier for industrial use.
View Article and Find Full Text PDFZIF-8 metal-organic frameworks and their hybrid materials: emerging photocatalysts for energy and environmental applications.
Dalton Trans
January 2025
Centre for Nanoscience and Nanotechnology, Siksha 'O' Anusnadhan (Deemed to be University), Bhubaneswar, Odisha, 751030, India.
In the face of escalating environmental challenges such as fossil fuel dependence and water pollution, innovative solutions are essential for sustainable development. In this regard, zeolitic imidazolate frameworks (ZIFs), specifically ZIF-8, act as promising photocatalysts for environmental remediation and renewable energy applications. ZIF-8, a subclass of metal-organic frameworks (MOFs), is renowned for its large specific surface area, high porosity, rapid electron transfer ability, abundant functionalities, ease of designing, controllable properties, and remarkable chemical and thermal stability.
View Article and Find Full Text PDFRecent advances in nanoporous organic polymers (NPOPs) for hydrogen storage applications.
Nanoscale
January 2025
Department of Chemistry, Netaji Subhas University of Technology, Delhi, India.
Nanoporous organic polymers (NPOPs) have emerged as versatile materials with robust thermal stability, large surface area (up to 2500 m g), and customizable porosity, making them ideal candidates for advanced hydrogen (H) storage applications. This review provides a comprehensive analysis of various NPOPs, including covalent organic frameworks (COFs), hypercrosslinked polymers (HCLPs), conjugated microporous polymers (CMPs), and porous aromatic frameworks (POAFs). Notably, these materials demonstrate superior H storage capacities, achieving up to 10 wt% at cryogenic temperatures, which is essential for applying H as a clean energy carrier.
View Article and Find Full Text PDFThermal Desorption Hyphenated to Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry for Trace Analysis in Raw Renewable Gases-Application to Hydrothermal Gasification.
J Sep Sci
January 2025
Department of Analytical, Bioanalytical Sciences and Miniaturization (LSABM) Chemistry, Biology and Innovation (CBI), UMR CNRS-ESPCI Paris, ESPCI Paris, PSL University, CNRS, Paris, France.
In the context of the energy transition, European countries pursue the common goal of increasing the share of renewable gases (from anaerobic digestion, pyrogasification, and hydrothermal gasification for instance) in the gas mix. Although produced gases are mainly composed of methane after upgrading, impurities of various natures and quantities may also be present in the produced raw gases and still after upgrading, including volatile organic compounds (VOCs) at trace levels that may have an impact on different stages of the gas chain even at low concentrations. These new renewable and/or low-carbon gases imply the need to develop new analytical tools to deeply characterize them, and thus fully manage their integration into the gas value chain.
View Article and Find Full Text PDFWhite light-emitting electrochemical cells based on metal-free TADF emitters.
Nat Commun
January 2025
The Organic Photonics and Electronics Group, Department of Physics, Umeå University, Umeå, Sweden.
The attainment of white emission from a light-emitting electrochemical cell (LEC) is important, since it enables illumination and facile color conversion from devices that can be cost-efficient and sustainable. However, a drawback with current white LECs is that they either employ non-sustainable metals as an emitter constituent or are intrinsically efficiency limited by that the emitter only converts singlet excitons to photons. Organic compounds that emit by thermally activated delayed fluorescence (TADF) can address these issues since they can harvest all excitons for light emission while being metal free.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!