Results 111 to 120 of about 62,606 (295)

Progress and Prospects of Persistent Luminescent Nanocrystals in Biomedical Applications

Advanced Optical Materials, EarlyView.
This review summarizes recent progress in materials‐level control of persistent luminescence, including mechanistic understanding, wavelength/intensity tuning, and activation strategies, as well as emerging biomedical applications in imaging, biosensing, cell tracking, optogenetic stimulation, and biophotochemical activation.
Peng Pei, Luping Wang, Haitong Jing, Xian Qin, Jiong‐Wei Wang, Xiaogang Liu   +5 more
wiley   +1 more source

Room‐Temperature, Photo‐Densified High Refractive Index Titanium Oxide Thin Films for Solution‐Processed Flexible Bragg Mirrors and Microcavity OLEDs

Advanced Optical Materials, EarlyView.
This paper presents the room‐temperature fabrication of solution‐processed, high refractive index TiOX thin films via photo‐densification. Using these films, flexible Bragg mirrors are demonstrated on PET substrates, achieving a high reflectivity of 96% at 450 nm.
Ayumu Nagaoka, He Sun, Luyang Song, Lina Yoshida, Tsukasa Yoshida, Yoshiyuki Suzuri   +5 more
wiley   +1 more source

Simulation of VUV electroluminescence in micropattern gaseous detectors: the case of GEM and MHSP

, 2012
Electroluminescence produced during avalanche development in gaseous avalanche detectors is an useful information for triggering, calorimetry and tracking in gaseous detectors.
Biagi, S., Correia, P. M. M., Ferreira, A. L., Monteiro, C. M. B., Oliveira, C. A. B., Santos, J. M. F. dos, Schindler, H., Veenhof, R., Veloso, J. F. C. A.   +8 more
core   +1 more source

Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells

Advanced Optical Materials, EarlyView.
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme, Damiano Marian, Maurice Wanitzek, Christian Spieth, Daniel Schwarz, Florian Bärwolf, Markus Andreas Schubert, Alwin Daus, Michele Virgilio, Giovanni Capellini   +9 more
wiley   +1 more source

Immense magnetic response of exciplex light emission due to correlated spin-charge dynamics

, 2016
As carriers slowly move through a disordered energy landscape in organic semiconductors, tiny spatial variations in spin dynamics relieve spin blocking at transport bottlenecks or in the electron-hole recombination process that produces light. Large room-
Flatté, Michael E., Harmon, Nicholas J., Sahin-Tiras, Kevser, Wang, Yifei, Wohlgenannt, Markus   +4 more
core   +2 more sources

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

Advanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida, Koichi Okamoto, Takuya Matsuda, Hajime Ishihara   +3 more
wiley   +1 more source

Unanticipated Interfacial Redox Reaction in the NiOx Transport Layer of Perovskite Light‐Emitting Diodes

Advanced Science, EarlyView.
This study presents the unanticipated interfacial redox reaction between NiOx and perovskite, which is characterized by XPS. This redox reaction is one of the primary reasons for the bias‐induced instability of PeLEDs and is particularly suppressed by simply applying an interface layer between NiOx and perovskite.
Thi‐Hoai Do, Aswaghosh Loganathan, Yun‐Han Wu, Yaw‐Shyan Fu, Tzung‐Fang Guo   +4 more
wiley   +1 more source

Tellurophene‐Induced Triplet–Singlet Spin‐Flip Acceleration: An Advanced Design for Narrowband Organoboron Emitters with Fast Reverse Intersystem Crossing

Angewandte Chemie, EarlyView.
Linking an auxiliary dibenzo[b,d]tellurophene unit markedly accelerates exciton spin conversion in multi‐resonance‐type thermally activated delayed fluorescence emitters. Owing to the heavy‐atom effect of tellurium, the corresponding OLEDs retain remarkably high external electroluminescence quantum efficiencies exceeding 25% even at an exceptionally ...
Peiyuan Yang, Jun Hyeon Lee, Kotone Urano, Takuma Yasuda   +3 more
wiley   +2 more sources

Influence of the Characteristics of the STM-tip on the Electroluminescence Spectra

, 2006
We analyze the influence of the characteristics of the STM-tip (applied voltage, tip radius) on the electroluminescence spectra from an STM-tip-induced quantum dot taking into account the many-body effects.
Bastard, Bobbert, Croitoru, Dombrowski, Frensley, Harrison, J.H. Wolter, J.T. Devreese, Jones, K. Sauthoff, Kemerink, Kemerink, Kohn, M. Kemerink, M.D. Croitoru, P.M. Koenraad, Pokatilov, V.M. Fomin, V.N. Gladilin, Wenderoth, Yamauchi   +20 more
core   +1 more source

Inside the Microreactor: In Situ Real‐Time Observation of Vapor–Liquid–Solid Growth of Monolayer TMDCs

Advanced Science, EarlyView.
In situ observation of VLS growth in a confined microreactor reveals various growth modes of monolayer TMDCs, including abnormal ribbon growth and particle‐driven growth. The confined space and precursor balance influence droplet behavior and growth dynamics, offering new insights into the controlled synthesis of TMDCs via the VLS mechanism.
Hiroo Suzuki, Yutaro Senda, Kaoru Hisama, Shuhei Aso, Yuta Takahashi, Shun Fujii, Yasuhiko Hayashi   +6 more
wiley   +1 more source