Advanced Optical Materials

Wiley Online Library : Advanced Optical Materials

Latest articles

Asymmetric Light Scattering on Heterodimers Made of Au Nanorods Vertically Standing on Au Nanodisks

Unprecedented heterodimers are constructed out of silicon‐supported gold nanodisks and Au nanorods that are vertically oriented on the gold nanodisks. Such heterodimers exhibit asymmetric, crescent‐shaped far‐field scattering patterns. When the nanorod is located off the center of the nanodisk, the incident light will be scattered preferentially along...

Electroconvection in Zwitterion‐Doped Nematic Liquid Crystals and Application as Smart Windows

Zwitterion is studied as a new class of ionic dopant for liquid crystals regarding the generation and application of electroconvection (EC) phenomena. A rich variety of regular EC patterns are observed and characterized. The dynamic scattering mode is employed to fabricate privacy‐protecting smart windows with excellent electro‐optic performance and...

Lasing from InP Nanowire Photonic Crystals on InP Substrate

An InP nanowire array still attached to the InP substrate shows intense photonic crystal lasing. The optically pumped area emits a lasing mode with an average off‐normal angle of 6°. Lasing with the nanoarray still attached to the substrate opens new design opportunities for electrically pumped coherent on‐chip light sources in optoelectronic integrated...

Meta‐Imaging: from Non‐Computational to Computational

This review focuses on applications of metamaterials/metasurfaces in the electromagnetic/optical imaging, and summarizes the recent developments of metamaterial/metasurface imaging in a new perspective, which can be categorized into the non‐computational and the computational ones. The former includes sub‐diffraction‐limited and aberration‐free imaging,...

Nanosphere Concentrated Photovoltaics with Shape Control

Dielectric nanosphere (NS) arrays are utilized as light management interfaces in solar cells with exceptional capability of postfabrication shape‐adjustability. NS arrays function as antireflection coatings and concentrators simultaneously. Efficiency of solar cells increases by >27% with NS shape‐adjustment. This is significant because the fabrication...

A Scalable H2O–DMF–DMSO Solvent Synthesis of Highly Luminescent Inorganic Perovskite‐Related Cesium Lead Bromides

Reversible phase transitions between Cs4PbBr6, CsPbBr3 and CsPb2Br5 can be controlled by varying the amount of water and dimethylsulfoxide (DMSO) in the water–dimethylformamide (DMF)–DMSO system. Compared with the traditional anhydrous DMF/DMSO system, the three‐solvent system provides an ideal solution environment for the direct growth of pure‐phase...

Aggregation‐Dependent Chromism and Photopolymerization of Aminoanthraquinone‐Substituted Diacetylenes

An aminoanthraquinone‐substituted diacetylene monomer adopts distinct organizations exhibiting different colors depending upon the polarity of the solvent employed for predissolution. Polar solvents give rise to a “Y‐phase” assembly (yellow color) which readily undergoes ultraviolet (UV)‐induced topochemical polymerization, whereas nonpolar solvents...

On Optoelectronic Processes in Organic Solar Cells: From Opaque to Transparent

A simulation‐based study of systematic changes in the visible transparency of organic (semi)transparent photovoltaics (ST‐OPVs) reveals causally linked changes in the charge generation, multimechanism recombination, and extraction processes. The results emphasize the need for high‐quality active layer materials for efficient ST‐OPVs while suggesting...

Coherent Chiral‐Selective Absorption and Wavefront Manipulation in Single‐Layer Metasurfaces

A coherent chiral‐selective metasurface absorber is experimentally demonstrated using a single‐layer metasurface, which can efficiently absorb one circularly polarized wave while converting the other to its cross‐polarized state. Taking advantage of such chiral properties, the authors further demonstrate three metagratings using Pancharatnam–Berry phase...

High Quality CsPbI3−xBrx Thin Films Enabled by Synergetic Regulation of Fluorine Polymers and Amino Acid Molecules for Efficient Pure Red Light Emitting Diodes

A chemically regulated strategy using poly(vinylidene fluoride‐cohexafluoropropylene) (PVDF‐HFP) and L‐Arginine (L‐Arg) to prepare a high‐quality pure red emissive CsPbI3− x Br x thin film with photoluminescence quantum yield of 40% is reported. An efficient pure red perovskite LED based on the fabricated CsPbI3− x Br x thin...

Discover, share and read the best on the web

Subscribe to RSS Feeds, Blogs, Podcasts, Twitter searches, Facebook pages, even Email Newsletters! Get unfiltered news feeds or filter them to your liking.

Get Inoreader
Inoreader - Subscribe to RSS Feeds, Blogs, Podcasts, Twitter searches, Facebook pages, even Email Newsletters!