Results 81 to 90 of about 200,461 (334)

Ambient fabrication of flexible and large-area organic light-emitting devices using slot-die coating [PDF]

, 2012
The grand vision of manufacturing large-area emissive devices with low-cost roll-to-roll coating methods, akin to how newspapers are produced, appeared with the emergence of the organic light-emitting diode about 20 years ago.
A Sandstrom, CW Tang, D-Y Chung, DA Pardo, F So, FC Krebs, FC Krebs, FC Krebs, FP Wenzl, G Mauthner, H Becker, H Nakjima, HF Dam, HL Filiatrault, J Birnstock, J Fang, JH Burroughes, JR Sheats, JS Park, M Lenes, M Suzuki, P Matyba, P Matyba, P Matyba, QB Pei, RD Costa, S Reineke, S Tang, S-C Chang, TR Hebner, Y Shao, Y Yang, YR Sun, Z Yu, ZB Yu, ZB Yu   +35 more
core   +1 more source

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

Electroluminescence and photo-response of inorganic halide perovskite bi-functional diodes

Nanophotonics, 2018
In this work, we report our efforts to develop a novel inorganic halide perovskite-based bi-functional light-emitting and photo-detecting diode. The bi-functional diode is capable of emitting a uniform green light, with a peak wavelength of 520 nm, at a ...
Li Ning, Lau Ying Suet, Miao Yanqin, Zhu Furong   +3 more
doaj   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Exciton Dissociation Dynamics in Model Donor-Acceptor Polymer Heterojunctions: I. Energetics and Spectra

, 2005
In this paper we consider the essential electronic excited states in parallel chains of semiconducting polymers that are currently being explored for photovoltaic and light-emitting diode applications.
Eric R. Bittner, John Glenn Santos Ramon, Shockley W., Stoyan Karabunarliev   +3 more
core   +1 more source

Spin injection in Silicon at zero magnetic field [PDF]

, 2009
In this letter, we show efficient electrical spin injection into a SiGe based \textit{p-i-n} light emitting diode from the remanent state of a perpendicularly magnetized ferromagnetic contact.
Aranov A. G., B. Rodmacq, J.-M. Hartmann, L. E. Nistor, L. Grenet, M. Jamet, P. Noé, P. Warin, S. Auffret, V. Calvo, Y. Samson   +10 more
core   +4 more sources

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

Advanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora, Francesco Carulli, Nadir Vanni, Antonella Giuri, Elena Ferrari, Matteo Masino, Laura Lazzarini, Francesca Rossi, Gianluca Accorsi, Anna Moliterni, Davide Altamura, Cinzia Giannini, Luca Cappelletti, Gianluca Quarta, Alberto Quaranta, Rosanna Mastria, Anna Paola Caricato, Sergio Brovelli, Aurora Rizzo   +18 more
wiley   +1 more source

Iridium complex, a phosphorescent light-emitting diode material, serves as a novel chemical probe for imaging hypoxic tumor tissues [PDF]

, 2007
Iridium complex, a promising organic light-emitting diode for next generation television displays, emits phosphorescence. Phosphorescence is quenched by oxygen. We used this oxygen-quenching feature for imaging tumor hypoxia.
Keigo Endo, Masahiro Hosaka, Seiji Tobita, Shaojuan Zhang, Toshitada Yoshihara, Toshiyuki Takeuchi, Yasuhiko Iida   +6 more
core   +1 more source

Co-planar spin-polarized light emitting diode

, 2005
Studies of spin manipulation in semiconductors has benefited from the possibility to grow these materials in high quality on top of optically active III-V systems.
Jungwirth, T., Kaestner, B., Sinova, Jairo, Wunderlich, J.   +3 more
core   +1 more source

InGaN nano-ring structures for high-efficiency light emitting diodes [PDF]

, 2004
A technique based on the Fresnel diffraction effect for the fabrication of nano-scale site-controlled ring structures in InGaN/GaN multi-quantum well structures has been demonstrated.
Choi, H. W., Chua, S. J., Dawson, M. D., Edwards, P. R., Jeon, C. W., Liu, C., Martin, R. W., Tripathy, S., Watson, I. M.   +8 more
core   +1 more source