Results 81 to 90 of about 4,477 (228)

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

FlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen, Kefan Meng, Yiqi Zhao, Chaoran Zhou, Jiaye Shu, Di Zhang, Chengqian Cao, Wanxin Chen, Yefeng Zhou, Weihua Ning   +9 more
wiley   +1 more source

Tin‐based perovskite light‐emitting diodes: Progress and perspective

InfoScience, EarlyView.
This review assesses tin‐based perovskite light‐emitting diodes (PeLEDs), focusing on the limitations of Sn2+ oxidation–induced defects and uncontrolled crystallization. By evaluating advanced device engineering and structural innovations, this article highlights their viability in narrowband pure‐red displays and near‐infrared optical communication ...
Wenhao Bai, Tongtong Xuan, Guanhua Ren, Ting Gong, Kunjie Song, Jiaxin Duan, Huili Li, Rong‐Jun Xie   +7 more
wiley   +1 more source

Identification and correlation of the Aso‐3 tephra in the Omaezaki area, central Japan: A valuable key stratum for the MIS 6/5 transition period

Journal of Quaternary Science, EarlyView.
ABSTRACT The Aso‐3 tephra is one of the most significant widespread marker layers from the Middle to Late Pleistocene, generated by a large caldera‐forming eruption at the Aso volcano in Kyushu, southwestern Japan. Despite its importance, a distal co‐ignimbrite ash correlative has yet to be clearly identified, primarily because although volcanic glass ...
Toshinori Sasaki, Takuya Morimoto, Tatsuyuki Ueno, Kazuo Mizoguchi, Norihisa Goto, Hisanori Ominami, Shohei Onaka   +6 more
wiley   +1 more source

Rounded Monodisperse Fluorescent Nanodiamonds

Small, EarlyView.
Nanodiamond (ND) shape control using rapid molten‐nitrate etching is studied as a scale‐up method for monodispersed rounded particles. Optimal etching condition (567°C for 6 min) yields NDs with atomically stepped surfaces and reduced sp2 content. Compared to angular control, rounded NDs exhibit an increased proportion of luminescent particles (66% vs.
Helena Raabova, Ivan Rehor, Jan Havlik, Stuart Turner, Jan Stursa, Vladimira Petrakova, Michal Gulka, Petr Cigler   +7 more
wiley   +1 more source

Synchrotron microcrystal native-SAD phasing at a low energy

IUCrJ, 2019
De novo structural evaluation of native biomolecules from single-wavelength anomalous diffraction (SAD) is a challenge because of the weakness of the anomalous scattering.
Gongrui Guo, Ping Zhu, Martin R. Fuchs, Wuxian Shi, Babak Andi, Yuan Gao, Wayne A. Hendrickson, Sean McSweeney, Qun Liu   +8 more
doaj   +1 more source

Ultrasensitive Detection of Neurofilament Light in Plasma Using F(Ab’)2‐Modified Graphene Field‐Effect Biosensor

Small, EarlyView.
An antibody fragment (F(ab')2)‐modified graphene field‐effect transistor biosensor is developed for the ultrasensitive detection of neurofilament light chain in clinical plasma. By reducing the Debye screening effect, the platform achieves a 114% sensitivity increase and a fivefold lower detection limit compared to whole‐antibody approaches ...
Selvinaz Burcu Kizilates, Rica Asrosa, Lenart Senicar, Anuja Sharma, Seda Gungordu Er, Nisha Naeem, Ahmad Nizamuddin bin Muhammad Mustafa, Yang Wu, Neil Graham, Amanda Heslegrave, Mohan Edirisinghe, Antonio Lombardo, Elias Torres, Henrik Zetterberg, Sami Ramadan, David J. Sharp, Bing Li   +16 more
wiley   +1 more source

Unraveling atomic complexity from frozen samples

Structural Dynamics
Cryo-electron microscopy (cryo-EM) is a significant driver of recent advances in structural biology. Cryo-EM is comprised of several distinct and complementary methods, which include single particle analysis, cryo-electron tomography, and microcrystal ...
Yasmeen N. Ruma, Brent L. Nannenga, Tamir Gonen   +2 more
doaj   +1 more source

Crystal Structures and Magnetic Properties of Coordination Polymer Complexes of Metal Ions With Kojic Acid Ligands

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
One‐dimensional coordination polymers of Cu(II) and Co(II) with kojic acid show distinct chain connectivities revealed by X ray crystallography and exhibit extremely weak magnetic interactions, as supported by magnetic measurements and molecular orbital calculations. The crystal structures and magnetic properties of coordination complexes [Cu(C6H5O4)2]
Wataru Fujita, Tomoko Yamaguchi
wiley   +1 more source

Determination of tianeptine in urine

RUDN Journal of Medicine, 2009
The article deals with the forensic analysis of tricyclic antidepressant Coaxil (tianeptine). Various colored and microcrystal reactions and thin layer chromatography (both normal and reversed phase variants) are presented to identify Coaxil.
E N Lyust
doaj