Rational design of visible light panchromatic absorption laser dye molecules: The first principle study

2020 ◽  
Vol 228 ◽  
pp. 117550
Author(s):  
Changjin Shao ◽  
Cong Qin ◽  
Zhenqing Yang
Keyword(s):  
Visible Light ◽  
Rational Design ◽  
First Principle ◽  
Dye Molecules ◽  
Laser Dye

scholarly journals Excited state dynamics for visible-light sensitization of a photochromic benzil-subsituted phenoxyl-imidazolyl radical

2019 ◽  
Vol 15 ◽  
pp. 2369-2379
Author(s):  
Yoichi Kobayashi ◽  
Yukie Mamiya ◽  
Katsuya Mutoh ◽  
Hikaru Sotome ◽  
Masafumi Koga ◽  
...  
Keyword(s):  
Visible Light ◽  
Rational Design ◽  
Materials Science ◽  
Transient Absorption ◽  
Life Sciences ◽  
Transient Absorption Spectroscopy ◽  
Back Reaction ◽  
Switching Speed ◽  
Wide Range ◽  
Potential Applications

Visible-light sensitized photoswitches have been paid particular attention in the fields of life sciences and materials science because long-wavelength light reduces photodegradation, transmits deep inside of matters, and achieves the selective excitation in condensed systems. Among various photoswitch molecules, the phenoxyl-imidazolyl radical complex (PIC) is a recently developed thermally reversible photochromic molecule whose thermal back reaction can be tuned from tens of nanoseconds to tens of seconds by rational design of the molecular structure. While the wide range of tunability of the switching speed of PIC opened up various potential applications, no photosensitivity to visible light limits its applications. In this study, we synthesized a visible-light sensitized PIC derivative conjugated with a benzil unit. Femtosecond transient absorption spectroscopy revealed that the benzil unit acts as a singlet photosensitizer for PIC by the Dexter-type energy transfer. Visible-light sensitized photochromic reactions of PIC are important for expanding the versatility of potential applications to life sciences and materials science.

Rational design of light induced self healed Fe based oxygen vacancy rich CeO2 (CeO2NS–FeOOH/Fe2O3) nanostructure materials for photocatalytic water oxidation and Cr(vi) reduction

2018 ◽  
Vol 6 (24) ◽  
pp. 11377-11389 ◽  
Author(s):  
S. Sultana ◽  
S. Mansingh ◽  
K. M. Parida
Keyword(s):  
Oxygen Vacancy ◽  
Visible Light ◽  
Water Oxidation ◽  
Charge Separation ◽  
Rational Design ◽  
Separation Efficiency ◽  
Nanostructure Materials ◽  
Charge Separation Efficiency ◽  
Uv Visible

Self regenerating oxygen vacancy rich CeO2NS–FeOOH/Fe2O3 hybrids are optimized and show superior charge separation efficiency both in visible and UV-visible light.

Silver nanoparticles modified reduced graphene oxide wrapped Ag3PO4/TiO2 visible-light-active photocatalysts with superior performance

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43697-43706 ◽  
Author(s):  
Can Cui ◽  
Yiwei Qiu ◽  
Haihua Hu ◽  
Ni Ma ◽  
Shuang Li ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Visible Light ◽  
Reduced Graphene Oxide ◽  
Charge Separation ◽  
Rational Design ◽  
Superior Performance ◽  
Reduced Graphene ◽  
Visible Light Active

Rational design of a novel Ag3PO4/TiO2/Ag-rGO photocatalyst with both electron and hole pathways for charge separation.

Low temperature synthesis of Ag@anatase TiO2 nanocomposites through controlled hydrolysis and improved degradation of toxic malachite green under both ultra-violet and visible light

RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 49083-49090 ◽  
Author(s):  
Yeluri Narayana Rao ◽  
Debashis Banerjee ◽  
Aparna Datta ◽  
Satyendra K. Das ◽  
Abhijit Saha
Keyword(s):  
Low Temperature ◽  
Visible Light ◽  
Ultra Violet ◽  
Nanocomposite Materials ◽  
Anatase Tio2 ◽  
Dye Molecules ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Low Concentrations ◽  
Controlled Hydrolysis

The synthesized nanocomposite materials have shown remarkable catalytic degradation efficiency even at low concentrations towards toxic dye molecules under visible light.

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