Results 131 to 140 of about 3,517,087 (293)

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

Advanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin, Stav Rahmany, Anat Shvets, Hadar Shema, Elad Gross, Ido Hadar, Lioz Etgar   +6 more
wiley   +1 more source

Flexible water-resistant bamboo-like perovskite-embedded polymer nano/microfibers exhibiting Fabry–Pérot lasing

APL Materials
Methylammonium lead bromide perovskite (MAPbBr3)-embedded nano- and micro-fibers are successfully fabricated by using the uniaxial electrospinning technique.
Hsin-Ming Cheng, You-Jia Pang, Chia-Kai Lin, Sheng-Chan Wu, Bo-Zhu You, Jung-Yao Chen, Hsu-Cheng Hsu   +6 more
doaj   +1 more source

Highly Sensitive Surface Plasmon Resonance Humidity Sensor Based on a Polyvinyl-Alcohol-Coated Polymer Optical Fiber. [PDF]

Biosensors (Basel), 2021
Wang Y, Wang J, Shao Y, Liao C, Wang Y.
europepmc   +1 more source

High‐Efficiency Quantum Defect Generation in Carbon Nanotubes via Oxygen‐Free Photochemistry

Advanced Functional Materials, EarlyView.
We show that oxygen plays an important role in quantum defect formation in carbon nanotubes and identify reaction conditions to create a range of different quantum defects for photonics and biosensing. ABSTRACT Single‐walled carbon nanotubes (SWCNTs) offer potential for a wide range of applications from optoelectronic devices to biomedical diagnostics.
Christina Derichsweiler, Valeriia D. Andreeva, Jan Stegemann, Julia Ackermann, Janus A. C. Wartmann, Svenja Herbertz, Sebastian Kruss   +6 more
wiley   +1 more source

Direct Bragg Grating Inscription in Single Mode Step-Index TOPAS/ZEONEX Polymer Optical Fiber Using 520 nm Femtosecond Pulses. [PDF]

Polymers (Basel), 2022
Hu X, Chen Y, Gao S, Min R, Woyessa G, Bang O, Qu H, Wang H, Caucheteur C.   +8 more
europepmc   +1 more source

Guanosine‐Quadruplex Hydrogels as Dynamic, Mechanically Tunable and Ion Conductive 3D Scaffolds for Cell Culture Applications

Advanced Functional Materials, EarlyView.
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur, Minye Jin, Pavel Milkin, Deepa Negi, Carla Cofiño Fabres, Hubert Gojzewski, Leonid Ionov, Alla Synytska, Andries van der Meer, Robert Passier, Julieta I. Paez   +10 more
wiley   +1 more source

Polymer Materials for U-Shaped Optic Fiber Sensors: A Review

Photonics
Fiber optic sensors have gained popularity over the last few decades. This is due to their numerous advantages, such as good metrological parameters, biocompatibility and resistance to magnetic and electric fields and environmental pollution.
Patryk Sokołowski, Jacek Łubiński, Paweł Wierzba, Jakub Czubek, Piotr Miluski, Filip Janiak, Shanyue Guan, Małgorzata Szczerska   +7 more
doaj   +1 more source

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

Advanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler, Richard Weber, Michael Sommer, Karin Leistner   +3 more
wiley   +1 more source

High pulse energy picosecond MgO:PPLN optical parametric oscillator using a single-mode fiber for signal feedback

We demonstrate a high-pulse-energy, synchronously-pumped (7.19MHz), 100ps, widely tunable MgO:PPLN OPO providing 0.49µJ pulses at 1.5µm and 0.19µJ pulses at 3.6µm.
Gawith, C.B.E., Shepherd, D.P., Hanna, D.C., Teh, P.S., Richardson, D.J., Kienle, Florian, Alam, S.-U.   +6 more
core   +1 more source

Modelling of the effects of thermal gradients on optical propagation in polymer multimode tapered waveguides in optical backplanes [PDF]

, 2004
Finite difference beam propagation modelling (FD-BPM) calculates the effect of thermal gradients in an optical backplane on the optical field propagation in a polymer multimode linearly tapered waveguide.
Rashed, A.M., Selviah, D.R.
core