Results 121 to 130 of about 1,110,577 (301)
Analyzing markets for electronic communications services in emerging economies - the case of Romania [PDF]
Despite the rapid and complex development of the Romanian electronic communications markets after the full sector liberalization in 2003, local literature often evaluates the development of the Romanian markets in a simplistic manner, by solely comparing
Radu Tudorache
core
Advanced Optical Materials, EarlyView.An organic–inorganic mixed excited state is designed and demonstrated by combining the metal–metal and π–π interactions within a supramolecular Pt2–pyrene assembly. Directional orbital overlap between the Pt and carbon atoms gives rise to a long‐lived triplet emission, strong emission polarization, exciton–exciton annihilation, and efficient exciton ...
Ying Luo +7 more
wiley +1 more source
Advanced Optical Materials, EarlyView.A coherent phthalimide acceptor platform with planar (Cz—carbazole) and spiro‐type (SAF—spiroacridine fluorene) donors enables systematic tuning of donor geometry and coupling, driving the evolution of excited‐state topology from classical CT‐TADF and fluorescence/RTP to CT‐driven and LE‐assisted TADF with OLED efficiencies ≈ 36%.
Christopher Anton Wallerius +8 more
wiley +1 more source
ELECTRONIC BUSINESS IN BUSINESS [PDF]
The management of a business in the digital economy is based on a management process called digital management. Business in the digital economy integrates information technologies and communications within its activities and may be partially or totally ...
Elisabeta Andreea Budacia +1 more
core
Advanced Optical Materials, EarlyView.Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah +2 more
wiley +1 more source
Exciton Radiative Lifetimes in Hexagonal Diamond Ge and SixGe1–x Alloys
Advanced Optical Materials, EarlyView.Strong room‐temperature photoluminescence reported in hexagonal Ge conflicts with theory predicting a nearly dark band edge. First‐principles calculations of excitonic radiative lifetimes fill a key gap in this debate, showing that pristine hexagonal Ge remains intrinsically weakly emissive, while Si alloying only modestly shortens the lifetime and ...
Michele Re Fiorentin +2 more
wiley +1 more source
Environmental impact of ICT and implications for e-waste management in Romania [PDF]
The development of Information and communications technology (ICT), as core of the digital economy, presents contradictory effects on the environment. The paper presents the main perspectives of environmental impact of ICT, especially in relation with ...
Nadia CIOCOIU +2 more
core
Intramolecular FRET Cascades Enable Small Efficiency Roll‐Off in Solution‐Processed OLEDs
Advanced Optical Materials, EarlyView.This work highlights how an intramolecular FRET design strategy in solution‐processable MR‐TADF emitters enables narrowband emission, high PLQY, and efficient exciton harvesting. The resulting hyperfluorescent solution‐processed OLEDs reach up to 20.7% EQEmax with minimal efficiency roll‐off even at 10 000 cd m−2, demonstrating strong potential for ...
Mahni Fatahi +4 more
wiley +1 more source
Nanocrystal Quality–Controlled Scintillation in Porous YAG:Ce Aerogels
Advanced Optical Materials, EarlyView.High‐temperature thermal treatment of YAG:Ce nanoscintillator aerogels increases light yield under ionizing radiation by up to eightfold without affecting timing performance. Additionally, low‐temperature atmospheric treatments reversibly modify the cerium oxidation state, revealing strong defect sensitivity and offering new strategies to optimize ...
Pavlo Mai +11 more
wiley +1 more source