Results 171 to 180 of about 61,179 (219)

Aerosol Jet Printed Polymer‐Free High Aspect Ratio Quantum Dot Films for Enhanced Color Conversion

Advanced Optical Materials, EarlyView.
Polymer‐free quantum dot color conversion layers are aerosol jet printed at high aspect ratio by tuning the aerosol focus ratio to induce in‐flight droplet drying. Contact‐line pinning suppresses lateral spreading, enabling ∼10 µm‐thick films at ∼50 µm widths with blue light leakage below 0.25% and conversion efficiency approaching 18%, demonstrated ...
Sukyung Choi, Anna Meredith, Hyunsu Cho, Zahra Bahrami, Kevin Schnittker, Joseph Andrews   +5 more
wiley   +1 more source

Bench testing a contact sensing tracheal tube for monitoring the cuff-trachea interface. [PDF]

BMC Biomed Eng
Agbiki TB, Erdody S, Correia R, Korposh S, Hewson DW, Norris AM, Hayes-Gill BR, Morgan SP.   +7 more
europepmc   +1 more source

Mitigating Efficiency Roll‐Off in Phosphor‐Sensitized Fluorescence OLEDs via Molecular Polarity‐Based Benzofuropyridine Host Engineering

Advanced Optical Materials, EarlyView.
Positional isomerism in dibenzofuran‐based n‐type hosts modulates molecular polarity, charge‐transport balance, and emissive‐layer packing. The higher‐polarity BFPDB‐2 host facilitates efficient energy funneling, reduced aggregation, and preferential dipole orientation, leading to phosphor‐sensitized fluorescence OLEDs with enhanced external quantum ...
Nargis Ali, Xuyao Song, Yun‐Hi Kim, Min Chul Suh   +3 more
wiley   +1 more source

Nano calligraphy via optical electro-aligning manipulation. [PDF]

Microsyst Nanoeng
Liu H, Fu R, Guo Z, Li Z, Zhao M, Li Z, Pan D, Zhang Y, Xi C, Li H, Chen K, Chu B, Lou K, Zhang Y, Chen Y, Xie H, Li J, Zhang S.   +17 more
europepmc   +1 more source

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, EarlyView.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source

Demonstration of multiple-wavelength-band photonic integrated circuits using a silicon and silicon nitride 2.5D integration method. [PDF]

Nanophotonics
Fu M, Qiu H, Zhang H, Chen X, Qi J, Zhang Y, Xu Y, Liu S, Gu N, Yu H, Yi W, Li X, Guan X.   +12 more
europepmc   +1 more source

Revealing the Transmission Hologram's Refractive Index Profile Stored in a Photohydrogel: A Structural Characterization

Advanced Optical Materials, EarlyView.
A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez, Manuel G. Ramírez, José Carlos García‐Vázquez, Tomás Lloret, Inmaculada Pascual   +4 more
wiley   +1 more source

Performance comparison of coupled-resonator optical waveguide Mach-Zehnder modulators with III-V SIS structures. [PDF]

Sci Rep
Kim K, Lee J, Kim Y.
europepmc   +1 more source

Naphthyridine‐Based Donor–Acceptor Boron Difluoride Complexes Targeting Red Emission in Organic Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Four donor–acceptor boron difluoride complexes based on triphenylamine donor and a naphthyridine acceptor units were synthesized, studied, and applied as OLED emitters. They exhibit pronounced intramolecular charge transfer character, balanced charge transport properties, and tunable emission. Near‐unity PLQYs are achieved for selected compounds, while
Omar Lahna, Stepan Kutsiy, Dmytro Volyniuk, Roman Luboradzki, Elina Andresen, Ute Resch‐Genger, Juozas V. Grazulevicius, Pavlo Stakhira, Mykhaylo A. Potopnyk   +8 more
wiley   +1 more source

Development of solid-state fluorescence lifetime standards for clinical applications using dyed epoxy resins. [PDF]

J Biomed Opt
Angelone D, Hughes K, Yavari H, Garduño Gómez SE, Wilson BC, Andersson-Engels S, Komolibus K, Konugolu Venkata Sekar S.   +7 more
europepmc   +1 more source