Results 71 to 80 of about 122,601 (292)

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

The efficient method for searching stable structures in herringbone-phase organic semiconductors using density functional theory

Applied Physics Express
We present the herringbone structure search (HSS) method to predict the crystal structures of organic semiconductors from molecular structural formulas.
Shuya Hakata, Hiroyuki Ishii, Hirokazu Takaki, Toshihiro Okamoto, Jun Takeya, Nobuhiko Kobayashi   +5 more
doaj   +1 more source

Halogen modified organic porous semiconductors in photocatalysis: mechanism, synthesis, and application

Advanced Powder Materials
Photocatalysis is considered as the promising energy conversion way to resolve the issues of energy crisis and environmental pollution. As the key point of the photocatalysis, the photocatalyst determines the final conversion efficiency from solar ...
Yue Yang, Liping Guo, Xuepeng Wang, Zhenzi Li, Wei Zhou   +4 more
doaj   +1 more source

A Novel Method to Analyze the Relationship between Thermoelectric Coefficient and Energy Disorder of Any Density of States in an Organic Semiconductor

Micromachines, 2023
In this work, a unified method is proposed for analyzing the relationship between the Seebeck coefficient and the energy disorder of organic semiconductors at any multi-parameter density of states (DOS) to study carrier transport in disordered ...
Dong Qin, Jiezhi Chen, Nianduan Lu
doaj   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Organic semiconductors for organic field-effect transistors

Science and Technology of Advanced Materials, 2009
The advantages of organic field-effect transistors (OFETs), such as low cost, flexibility and large-area fabrication, have recently attracted much attention due to their electronic applications.
Yoshiro Yamashita
doaj  

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Glass-Forming Organic Semiconductors for Optoelectronics

Medžiagotyra, 2011
Organic electronics and optoelectronics are newly emerging fields of science and technology that cover chemistry, physics, and materials science. Electronic and optoelectronic devices using organic materials are attractive because of the materials ...
Aušra TOMKEVIČIENĖ, Juozas Vidas GRAŽULEVIČIUS   +1 more
doaj   +1 more source

Accumulation and depletion layer thicknesses in organic field effect transistors

, 2003
We present a simple but powerful method to determine the thicknesses of the accumulation and depletion layers and the distribution curve of injected carriers in organic field effect transistors.
Fujiwara, Kohei, Kiguchi, Manabu, Nakayama, Manabu, Saiki, Koichiro, Shimada, Toshihiro, Ueno, Keiji   +5 more
core   +1 more source

The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters

Advanced Functional Materials, EarlyView.
A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul, Haonan Zhao, Collin N. Muniz, Mark E. Thompson, Stephen R. Forrest   +4 more
wiley   +1 more source