Results 21 to 30 of about 300,543 (295)

Tunable Light Field Modulations with Chip- and Fiber-Compatible Monolithic Dielectric Metasurfaces

open access: yesNanomaterials, 2022
Metasurfaces with a high engineering degree of freedom are promising building blocks for applications in metalenses, beam deflectors, metaholograms, sensing, and many others.
Bobo Du   +5 more
doaj   +1 more source

Wide-range lifetime-tunable and responsive ultralong organic phosphorescent multi-host/guest system

open access: yesNature Communications, 2021
Though high efficiency has been realized for ultralong organic phosphorescence (UOP) materials, realizing wide ranging and tunable lifetime in these materials remains a challenge.
Zongliang Xie   +9 more
doaj   +1 more source

Semiconducting Monolayer Materials as a Tunable Platform for Excitonic Solar Cells [PDF]

open access: yes, 2012
The recent advent of two-dimensional monolayer materials with tunable optoelectronic properties and high carrier mobility offers renewed opportunities for efficient, ultra-thin excitonic solar cells alternative to those based on conjugated polymer and ...
Akaike K.   +47 more
core   +3 more sources

Writing Electronic Devices on Paper with Carbon Nanotube Ink [PDF]

open access: yes, 2009
The normal paper used in any printer is among the cheapest flexible organic materials that exist. We demonstrate that we can print on paper high-frequency circuits tunable with an applied dc voltage.
D Dragoman   +5 more
core   +4 more sources

Polarization Diversity and Adaptive Beamsteering for 5G Reflectarrays: A Review

open access: yesIEEE Access, 2018
The growing demands of advanced future communication technologies require investigating the possible enhancement in the current features of a reflectarray antenna.
Muhammad Hashim Dahri   +5 more
doaj   +1 more source

Influence of molecular packing on the color-tunable emissive behavior of viologen derivatives

open access: yesResults in Chemistry, 2022
Color-tunable organic solid-state luminescent materials have received increasing attention owing to their potential applications in displays, imaging, encryption, etc.
Guo-Chao Li   +5 more
doaj   +1 more source

Ultralarge anti-Stokes lasing through tandem upconversion

open access: yesNature Communications, 2022
Constructing ultraviolet lasing is of great significance for basic research and medical use. Here the authors present a strategy for generating ultraviolet lasing through a tandem upconversion process with ultralarge anti-Stokes shift (1260 nm).
Tianying Sun   +11 more
doaj   +1 more source

Multistable kirigami for tunable architected materials

open access: yesPhysical Review Materials, 2018
In nature, materials such as ferroelastics and multiferroics can switch their microstructure in response to external stimuli, and this reconfiguration causes a simultaneous modulation of its material properties. Rapid prototyping technologies have enabled origami and kirigami-inspired architected materials to provide a means for designing shape ...
Yang, Yi   +2 more
openaire   +3 more sources

A review of tunable photonics: Optically active materials and applications from visible to terahertz

open access: yesiScience, 2022
Summary: The next frontier of photonics is evolving into reconfigurable platforms with tunable functions to realize the ubiquitous application. The dynamic control of optical properties of photonics is highly desirable for a plethora of applications ...
Joo Hwan Ko   +4 more
doaj   +1 more source

Topological Crystalline Insulator Nanomembrane with Strain-Tunable Band Gap [PDF]

open access: yes, 2014
The ability to fine-tune band gap and band inversion in topological materials is highly desirable for the development of novel functional devices. Here we propose that the electronic properties of a free-standing nanomembrane of topological crystalline ...
Fu, Liang, Li, Ju, Qian, Xiaofeng
core   +2 more sources

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