Results 51 to 60 of about 9,384 (233)

Beyond Radical Emitters: Hot‐Exciton Electroluminescence From Singlet Diradicaloids

Angewandte Chemie, EarlyView.
The first hot‐exciton mechanism in a singlet diradicaloid is demonstrated in a polychlorinated Thiele hydrocarbon‐based organic light‐emitting transistor. Reverse intersystem crossing involving the T2 and bright singly excited states enables electroluminescence beyond the 25% spin‐statistical limit, leading to remarkable external quantum efficiency ...
Mario Prosa, Eugenio Lunedei, Michele Orza, Davide Mesto, Roberto Cantoni, Francesco Reginato, Angela Punzi, Arthur R. J. Barreto, Yasi Dai, Benedetta Carlotti, Fabrizia Negri, Stefano Toffanin, Davide Blasi   +12 more
wiley   +2 more sources

Evolution of the pentacene exciton band width in pentacene–tetracene blends

The Journal of Chemical Physics
Pentacene is one of the most investigated organic semiconductors. It is well known that the motion of excitons in pentacene and other organic semiconductors is determined by inter-molecular exciton coupling based on charge-transfer processes. In the present study, we demonstrate the impact of the admixture of tetracene, which has a larger band gap and ...
Kateryna Hubenko, Anncharlott Kusber, Marco Naumann, Bernd Büchner, Martin Knupfer   +4 more
openaire   +2 more sources

Pentacene-Based Thin-Film Transistors With a Solution-Process Hafnium Oxide Insulator [PDF]

, 2009
—Pentacene-based organic thin-film transistors with solution-process hafnium oxide (HfOx) as gate insulating layer have been demonstrated. The solution-process HfOx could not only exhibit a high-permittivity (κ = 11) dielectric constant but also has ...
Chou, Dei-Wei, Li, Yu-Chang, Wei, Chia-Yu, Wang, Yeong-Her, Adriyanto, Feri, Lin, Yu-Ju, Huang, Tong-Jyun   +6 more
core  

N‐Type Doping and Passivation of Black Phosphorus Using Pentacene for Infrared Polarization‐Sensitive Photodetection and Imaging

Advanced Electronic Materials, 2023
Few‐layer black phosphorus (FL‐BP) shows great potential in infrared polarization‐sensitive photodetection due to its narrow bandgap and strong in‐plane anisotropy.
Guangliang Li, Lingxian Kong, Qi Su, Xianhua Tan, Xuning Zhang, Zhiyong Liu, Tielin Shi, Guanglan Liao, Bo Sun   +8 more
doaj   +1 more source

Automated Virtual Design of Organic Semiconductors Based on Metal-Organic Frameworks

Frontiers in Materials, 2022
The arrangement of organic semiconductor molecules in a material can be modulated using different supramolecular approaches, including the metal–organic framework (MOF) approach. These arrangements result in different frameworks topologies and structures.
Mersad Mostaghimi, Celso R. C. Rêgo, Ritesh Haldar, Christof Wöll, Wolfgang Wenzel, Mariana Kozlowska   +5 more
doaj   +1 more source

Battery‐Inspired Electrochemical Synapses for Neuromorphic Applications

Advanced Science, EarlyView.
Battery‐ion‐inspired synaptic devices integrate diverse electrolyte systems (solid, ion‐gel, liquid) with transition metal oxides, two‐dimensional materials, and organic channels to regulate ion‐electron coupling. By tailoring ion transport and host interactions, these platforms enable controllable plasticity and energy‐efficient implementations for ...
Won Woo Lee, SeongCheol Jang, Wangmyung Choi, Jaewon Park, Jaehyun Hur, Hocheon Yoo, Hyun‐Suk Kim   +6 more
wiley   +1 more source

Aggregation Regulated Ultrafast Singlet Fission Pathways in TIPS-Pentacene Films

Ultrafast Science
Singlet fission (SF) is a spin-conserving process converting 1 singlet exciton into 2 triplet excitons. This exciton multiplication mechanism offers an attractive route to solar cells that circumvent the single-junction Shockley–Queisser limit.
Guang Huang, Junzi Li, Zilin Zhou, Zongtao Huang, Wei Kong, Fangteng Zhang, Youjun Zeng, Guanyu Liu, Tingchao He, Lin Ma   +9 more
doaj   +1 more source

Charge-transfer states and optical transitions at the pentacene-TiO2 interface

New Journal of Physics, 2017
Pentacene molecules have recently been observed to form a well-ordered monolayer on the (110) surface of rutile TiO _2 , with the molecules adsorbed lying flat, head to tail. With the geometry favorable for direct optical excitation and given its ordered
M P Ljungberg, O Vänskä, P Koval, S W Koch, M Kira, D Sánchez-Portal   +5 more
doaj   +1 more source

Angular-Dependent EDMR Linewidth for Spin-Dependent Space-Charge-Limited Conduction in a Polycrystalline Pentacene

Frontiers in Materials, 2017
Spin-dependent space-charge-limited carrier conduction in a Schottky barrier diode using polycrystalline p-type π-conjugated molecular pentacene is explored using multiple-frequency electrically detected magnetic resonance (EDMR) spectroscopy with a ...
Kunito Fukuda, Kunito Fukuda, Naoki Asakawa   +2 more
doaj   +1 more source

Quantum‐Trained AI Enables Inverse Design of Organic Frontier Orbitals at Billion‐Scale

Advanced Science, EarlyView.
Quantum‐trained AI links molecular substructures to frontier‐orbital energetics and enables interpretable screening across nearly one billion GDB‐13 molecules. By combining fragment‐ and ring‐level insights with donor–acceptor energy alignment against ITIC, the framework narrows an immense chemical space to a small set of promising candidates and ...
Yeongnam Ko, Se Jin Kim, Ki Chul Kim
wiley   +1 more source