Room-Temperature Metal-Free Multicomponent Polymerizations of Elemental Selenium toward Stable Alicyclic Poly(oxaselenolane)s with High Refractive Index

2021 ◽  
Vol 143 (38) ◽  
pp. 15723-15731
Author(s):  
Xiuying Wu ◽  
Junxia He ◽  
Rongrong Hu ◽  
Ben Zhong Tang
Keyword(s):  
Refractive Index ◽  
Room Temperature ◽  
High Refractive Index ◽  
Elemental Selenium ◽  
Metal Free

Room temperature phosphorescent organic materials for optical waveguides

2021 ◽  
Author(s):  
Mallesham Godumala ◽  
Avulu Vinod Kumar ◽  
Rajadurai Chandrasekar
Keyword(s):  
Refractive Index ◽  
Electromagnetic Fields ◽  
Optical Waveguides ◽  
Room Temperature ◽  
Organic Materials ◽  
High Refractive Index ◽  
Molecular Solids ◽  
Direction Parallel ◽  
One Dimensional

Organic optical waveguides (OWGs) are high refractive index one-dimensional molecular solids used to guide electromagnetic fields in a direction parallel to their long axis. OWGs attract a great deal of...

scholarly journals Strong coupling of single quantum dots with low-refractive-index/high-refractive-index materials at room temperature

2020 ◽  
Vol 6 (47) ◽  
pp. eabb3095
Author(s):  
Xingsheng Xu ◽  
Siyue Jin
Keyword(s):  
Quantum Dots ◽  
Refractive Index ◽  
Strong Coupling ◽  
Room Temperature ◽  
High Refractive Index ◽  
Colloidal Quantum Dots ◽  
Rabi Splitting ◽  
Pl Spectra ◽  
Dielectric Cavity ◽  
Low Refractive Index

Strong coupling between a cavity and transition dipole moments in emitters leads to vacuum Rabi splitting. Researchers have not reported strong coupling between a single emitter and a dielectric cavity at room temperature until now. In this study, we investigated the photoluminescence (PL) spectra of colloidal quantum dots on the surface of a SiO2/Si material at various collection angles at room temperature. We measured the corresponding reflection spectra for the SiO2/Si material and compared them with the PL spectra. We observed PL spectral splitting and regarded it as strong coupling between colloidal quantum dots and the SiO2/Si material. Upper polaritons and lower polaritons exhibited anticrossing behavior. We observed Rabi splitting from single-photon emission in the dielectric cavity at room temperature. Through analysis, we attributed the Rabi splitting to strong coupling between quantum dots and bound states in the continuum in the low-refractive-index/high-refractive-index hybrid material.

scholarly journals Catalyst-Free Polymerization with 100% Atom Economy: Facile Synthesis of Polysulfonates with Multifunctionalities

2020 ◽  
Author(s):  
XIAOLIN LIU ◽  
Xin Liang ◽  
YUBING HU ◽  
Qing Qu ◽  
Dongming Liu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Antibacterial Activity ◽  
Room Temperature ◽  
High Refractive Index ◽  
Atom Economy ◽  
Facile Synthesis ◽  
Spontaneous Polymerization ◽  
Catalyst Free ◽  
High Yields ◽  
Post Functionalization

Catalyst-free spontaneous polymerization for the synthesis of halogen-rich polysulfonates at room temperature in air with 100% atom economy in high yields was developed. The resulting polymers possess various properties, including post-functionalization, extraordinarily high refractive index, visible photodegradation, photoacid generation, multi-color and 3D fluorescent photopatterning, and practical broad-spectrum antibacterial activity.

Properties and Effects of Laser-Induced Plasma During Evaporative Deposition of Thin Films

1987 ◽  
Vol 93 ◽  
Author(s):  
H. Sankur ◽  
J. Denatale ◽  
W. J. Gunning
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Optical Absorption ◽  
Room Temperature ◽  
High Refractive Index ◽  
Laser Induced Plasma

ABSTRACTThe properties of plasmas generated by the interaction of a pulsed CO2 laser with several solid evaporation targets were studied and the films deposited from such plasmas were characterized. A large flux (˜ 1014/cm2/s) of ions at high velocities (2 − 10 × 106 cm/s) was measured in these plasmas. ZrO2 thin films deposited by laser-assisted evaporation on room temperature substrates had crystalline-oriented structures. Low optical absorption and high refractive index values (2.15 at 632.8 nm) indicated the stoichiometric and dense nature of these films.

Transparent and colourless room temperature ionic liquids having high refractive index over 1.60

2014 ◽  
Vol 50 (94) ◽  
pp. 14790-14792 ◽  
Author(s):  
Yoko Kayama ◽  
Takahiro Ichikawa ◽  
Hiroyuki Ohno
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Room Temperature ◽  
High Refractive Index ◽  
Potential Parameter ◽  
Room Temperature Ionic Liquids ◽  
Positive Relation ◽  
Phosphonium Cations

Transparent and colourless ionic liquids with refractive index over 1.60 were synthesised by combining 1-benzyl-3-methylimidazolium or hexyltriphenyl phosphonium cations with suitable anions. There is a positive relation between their refractive index values and Kamlet–Taft parameters, especially dipolarity/polarisability, strongly suggesting potential parameter to design highly refractive ionic liquids.

scholarly journals Catalyst-Free Polymerization with 100% Atom Economy: Facile Synthesis of Polysulfonates with Multifunctionalities

2020 ◽  
Author(s):  
XIAOLIN LIU ◽  
Xin Liang ◽  
YUBING HU ◽  
Qing Qu ◽  
Dongming Liu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Antibacterial Activity ◽  
Room Temperature ◽  
High Refractive Index ◽  
Atom Economy ◽  
Facile Synthesis ◽  
Spontaneous Polymerization ◽  
Catalyst Free ◽  
High Yields ◽  
Post Functionalization

Catalyst-free spontaneous polymerization for the synthesis of halogen-rich polysulfonates at room temperature in air with 100% atom economy in high yields was developed. The resulting polymers possess various properties, including post-functionalization, extraordinarily high refractive index, visible photodegradation, photoacid generation, multi-color and 3D fluorescent photopatterning, and practical broad-spectrum antibacterial activity.

Accelerated Discovery of High-Refractive-Index Polyimides via First-Principles Molecular Modeling, Virtual High-Throughput Screening, and Data Mining

2019 ◽  
Author(s):  
Mohammad Atif Faiz Afzal ◽  
Mojtaba Haghighatlari ◽  
Sai Prasad Ganesh ◽  
Chong Cheng ◽  
Johannes Hachmann
Keyword(s):  
Data Mining ◽  
Refractive Index ◽  
High Throughput ◽  
First Principles ◽  
High Throughput Screening ◽  
Large Scale ◽  
Computational Study ◽  
High Refractive Index ◽  
Structural Features ◽  
Learning Program

<div>We present a high-throughput computational study to identify novel polyimides (PIs) with exceptional refractive index (RI) values for use as optic or optoelectronic materials. Our study utilizes an RI prediction protocol based on a combination of first-principles and data modeling developed in previous work, which we employ on a large-scale PI candidate library generated with the ChemLG code. We deploy the virtual screening software ChemHTPS to automate the assessment of this extensive pool of PI structures in order to determine the performance potential of each candidate. This rapid and efficient approach yields a number of highly promising leads compounds. Using the data mining and machine learning program package ChemML, we analyze the top candidates with respect to prevalent structural features and feature combinations that distinguish them from less promising ones. In particular, we explore the utility of various strategies that introduce highly polarizable moieties into the PI backbone to increase its RI yield. The derived insights provide a foundation for rational and targeted design that goes beyond traditional trial-and-error searches.</div>

Preparation and Characterization of Polyvinylidene Fluoride/ZrO2-TiO2 Optical Film with Wide Band Gap and High Refractive Index

2013 ◽  
Vol 28 (6) ◽  
pp. 671-676 ◽  
Author(s):  
Yu-Qing ZHANG ◽  
Li-Li ZHAO ◽  
Shi-Long XU ◽  
Chao ZHANG ◽  
Xiao-Ying CHEN ◽  
...  
Keyword(s):  
Refractive Index ◽  
Band Gap ◽  
Polyvinylidene Fluoride ◽  
Wide Band ◽  
High Refractive Index ◽  
Wide Band Gap ◽  
Optical Film
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