Results 51 to 60 of about 89,778 (250)

Memristor‐Driven Active‐Matrix Organic Light‐Emitting Diode for Energy Efficient and High‐Resolution Displays

Advanced Functional Materials, EarlyView.
This study demonstrates that memristors can replace conventional 2T–1C driving circuits with simplified 1T–1 m architectures by exploiting resistance switching. With ultra‐low switching voltages (< ±0.2 V) and multi‐level resistance states, the memristors precisely control the current injected into organic light‐emitting diodes (OLEDs).
Dong Hyun Kim, Nahyun Kim, Seok Hee Hong, Ho Jin Lee, Jin Suk Oh, Jae Seong Park, Tae Geun Kim   +6 more
wiley   +1 more source

Rationally Designed Bilayer Passivation Strategy for High‐Performance Vacuum‐Processed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A bilayer “Anchor‐and‐Seal” passivation strategy using EDAI2 and 4MeO‐PEAI effectively mitigates surface defects in vacuum‐processed perovskite films through synergistic hydrogen bonding and Lewis base coordination. This approach optimizes interfacial energy alignment and suppresses non‐radiative recombination, enabling vacuum‐deposited p‐i‐n ...
Mohammadhossein Kohan, Sang‐Heon Lee, Jaswinder Singh, Sung‐Nam Kwon, Seok‐In Na   +4 more
wiley   +1 more source

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita, Lucas R. L. Norg, Patrick Diederen, Clint van Hoesel, Christ H. L. Weijtens, Peter A. Bobbert, Reinder Coehoorn   +6 more
wiley   +1 more source

Computational evaluation of triphenylimidazole-coumarin-3-carboxylic acid derivatives as potential sensitizers for dye sensitized solar cells

Discover Chemistry
Triphenylimidazole derivatives linked with coumarin-carboxylic acid were evaluated as sensitizers for DSSC applications through density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations. Coumarin-3-carboxylic acid
Idayat Sulaiman, Richard K. Adeleke, Bolatito E. Olanipekun, Olusola O. James   +3 more
doaj   +1 more source

Compounds derived from flavonoids for photovoltaic applications. Computational chemical investigations

Journal of the Turkish Chemical Society, Section A: Chemistry, 2018
In this paper, we present a quantum chemical analysis of geometries and optoelectronic properties of a series of flavonoids and derivatives with the aim to research new molecules for applications in the fields of chemical physics and materials science ...
Rachid Kacimi, Tayeb Abram, Lahcen Bejjit, Mohammed Bouachrine   +3 more
doaj   +1 more source

HOMO-LUMO Maps for Fullerenes.

Acta chimica Slovenica, 2010
The HOMO-LUMO map is found to be a useful tool for classifying ?$\pi$?-electron configurations of fullerenes and identifying research questions about their adjacency spectra.
Fowler, Patrick W., Pisanski, Tomaž
openaire   +2 more sources

The HOMO-LUMO Gap as Discriminator of Biotic from Abiotic Chemistries

Life
Low-molecular-mass organic chemicals are widely discussed as potential indicators of life in extraterrestrial habitats. However, demarcation lines between biotic chemicals and abiotic chemicals have been difficult to define. Here, we have analyzed the potential utility of the quantum chemical property, HOMO-LUMO gap (HLG), as a novel proxy variable of ...
Roman Abrosimov, Bernd Moosmann
openaire   +4 more sources

Energy Level Modulation of HOMO, LUMO, and Band‐Gap in Conjugated Polymers for Organic Photovoltaic Applications [PDF]

, 2013
To devise a reliable strategy for achieving specific HOMO and LUMO energy level modulation via alternating donor‐acceptor monomer units, we investigate a series of conjugated polymers (CPs) in which the electron withdrawing power of the acceptor group is
Yutaka Ie, Elizabeth W. Coir, Bong‐Gi Kim, Chen, Chelsea, Hashemi, Hossein, Aso, Yoshio, Kim, Bong‐gi, Kieffer, John, Hossein Hashemi, Xiao Ma, Chelsea Chen, Green, Peter F., Yoshio Aso, Jinsang Kim, Kim, Jinsang, Coir, Elizabeth W., Peter F. Green, John Kieffer, Ie, Yutaka, Ma, Xiao   +19 more
core   +1 more source

The Ni,Cd Heteroatoms‐Initiated Synergistic Tuning of Electron Configuration in Fe2VO4 Nanosheets Electrocatalysts to Profoundly Stabilize Alkaline Seawater Electrolysis

Advanced Functional Materials, EarlyView.
A Ni,Cd‐codoped Fe2VO4/NF bifunctional electrocatalyst is rationally designed for efficient seawater electrolysis. Synergistic effect modulates electron configuration, optimizes intermediates adsorption, stabilizes high‐valence Fe/V sites, and repels chloride ions to suppress corrosion and side reactions, thus contributing to performance improvement of
Weiguo Huang, Bin Fang, Tao Meng, Xiaodong Chen, Ya Chen, Xin Gao, Fei Liang, Hongchao Sun, Jiangmin Zou, Chao Yuan, Yuanyuan Shao, Peiyi Ji, Yangang Wang, Lifeng Cui, Guoxiu Wang, Duu‐Jong Lee   +15 more
wiley   +1 more source

Ionic Transportation Induced Electric Field Modulation in Porous Ecoflex/PTFE with Confined Liquid for High‐Performance Contact Electrification Power Generation

Advanced Functional Materials, EarlyView.
Porous Ecoflex/PTFE composite with encapsulated liquid generates electricity through ionic migration induced by dynamic pore deformation, creating non‐uniform electric fields that drive charge induction on electrodes. This mechanism enhances charge transfer and ensures stable contact electrification performance, achieving 12 V and 4 nC with consistent ...
Xiangkun Bo, Juyang Wei, Zihua Li, Yuejiao Chen, Hong Fu, Bingang Xu   +5 more
wiley   +1 more source