Results 121 to 130 of about 7,861 (273)

Thermally activated delayed fluorescence exciplex sensitizers with fast reverse intersystem crossing for improving efficiency stability of organic light‐emitting diodes based on multi‐resonance emitters

open access: yesFlexMat, EarlyView.
Two exciplex emitters are constructed based on a host‐guest doping strategy, and their exciton dynamics processes are investigated in depth. High‐performance OLEDs are fabricated by employing these exciplexes as emitters or sensitizers, providing excellent electroluminescence efficiencies and low efficiency roll‐offs.
Jingwen Xu   +4 more
wiley   +1 more source

Flexible white thermally activated delayed fluorescence polymer with alkyl spacer and side‐chain encapsulation for efficient solution‐processed white organic light‐emitting diodes

open access: yesFlexMat, EarlyView.
A “gemstone‐necklace” FASCE strategy synthesizes single‐component white polymers (PTF‐Qx) by alternating rigid TADF units with flexible alkyl chains. The non‐doped rigid device achieves a high EQE of 15.66% with stable white emission (CIE: 0.36, 0.46).
Wenhao Zhang   +7 more
wiley   +1 more source

Snack bar Jawawut, Pisang Kepok, Ikan Belanak (Japisbell): Cemilan Sehat untuk Penderita Diabetes MelitusSnack bar Jawawut, Pisang Kepok, Ikan Belanak (Japisbell): Cemilan Sehat untuk Penderita Diabetes Melitus

open access: yesAmerta Nutrition
Latar Belakang: Diabetes Melitus (DM) merupakan salah satu penyakit metabolik yang memerlukan pengaturan pola makan, termasuk snack. Bahan pangan lokal seperti biji jawawut, pisang kepok, dan ikan belanak berpotensi menjadi alternatif snack berupa snack ...
Ginta Siahaan   +4 more
doaj   +1 more source

Desenvolvimento da fluência tecnológica em programa educacional de robótica pedagógica [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia e Gestão do Conhecimento, Florianópolis, 2011Este trabalho trata da recuperação e interpretação de informações, visando a ...
Neves Júnior, Othon da Rocha
core  

Programmable luminescent platform based on carbon quantum dots enables wavelength‐multiplexed optical data storage and encryption

open access: yesFlexMat, EarlyView.
A carbon‐quantum‐dots (CQDs)‐based programmable luminescent platform is proposed for multidimensional optical information encryption and high‐capacity data storage by leveraging wavelength‐division multiplexing. Furthermore, a prototype tri‐layer optical disk is demonstrated, where data written via laser ablation on different CQD layers are retrieved ...
Honglei Sun   +9 more
wiley   +1 more source

Chemical Controls on the Green Coloration of the Novel Gem Quartzite “Feizhoucui”: A CIE L*a*b* Colorimetric Study

open access: yesCrystals
This study investigates the mineralogical composition, color origin, and chromatic classification of “Feizhoucui”, a distinctive green quartzite. Analyses of 54 samples via EPMA, UV-Vis spectroscopy, and colorimetry revealed that its characteristic color
Jie Hu   +5 more
doaj   +1 more source

Desperdício de papel e embalagens em resíduos sólidos urbanos

open access: yes, 2004
Fac. de Cie. Agronomicas Lab. de Residuos e Compositos UNESP, Botucatu-SPFac. de Cie. Agronomicas CERAT UNESP, Botucatu - SPPublicidade e Propaganda UNIP, Bauru - SPFac. de Cie. Agronomicas Lab. de Residuos e Compositos UNESP, Botucatu-SPFac.
De Cássia Hilário, Kátia [UNESP]   +1 more
core  

Spirobifluorene fusion in multiple resonance frameworks enables efficient pure‐red OLEDs with narrowband emission and suppressed efficiency roll‐off

open access: yesFlexMat, EarlyView.
An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing   +7 more
wiley   +1 more source

Heteroatom location‐ and orientation mode‐dependent reverse intersystem crossing rate in multiple resonance emitters

open access: yesFlexMat, EarlyView.
By constructing two pairs of isomers with different heteroatom anchoring positions, the relationship between heteroatom location and orientation mode and reverse intersystem crossing rate constant (kRISC) in multiple resonance (MR) emitters is systematically investigated.
Tingting Huang   +5 more
wiley   +1 more source

Phytochemical and biological characterization of extracted natural colors from fruits of monotheca buxifolia

open access: yesScientific Reports
Currently, many industries prefer the use of natural dyes over synthetic ones due to health, safety, and ecological concerns. This study compares the application and characterization of two extracted natural colors from the fruits of Monotheca buxifolia,
Sumbal Khan   +6 more
doaj   +1 more source

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