Multi-wavelength optical storage of diarylethene PMMA film

2003 ◽  
Vol 22 (3) ◽  
pp. 269-274 ◽  
Author(s):  
Haobo Guo ◽  
Fushi Zhang ◽  
Guo-shi Wu ◽  
Fan Sun ◽  
Shouzhi Pu ◽  
...  
Keyword(s):  
Optical Storage ◽  
Pmma Film ◽  
Multi Wavelength

Efficient Synthesis and Photochromic Properties of a New Diarylethene Bearing a Condensed Aromatics Moiety

2012 ◽  
Vol 455-456 ◽  
pp. 33-36
Author(s):  
Ren Jie Wang ◽  
Hong Ying Xia ◽  
Gang Liu ◽  
Shi Qiang Cui
Keyword(s):  
Uv Light ◽  
Optical Storage ◽  
Hybrid Structure ◽  
Order Reaction ◽  
Pmma Film ◽  
Efficient Synthesis ◽  
Photochromic Properties ◽  
First Order ◽  
New Class ◽  
Hexane Solution

A new class of diarylethenes based on a hybrid structure of thiophene and naphthalene has been developed and its properties including photochromism, kinetics and fluorescence were investigated in detail. The results showed that the compound exhibited obvious photochromism, changing from colorless to red after irradiation with 297 nm UV light both in solution and in PMMA film. The kinetic experiments indicated that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction in hexane solution. At last, the results demonstrated that the diarylethene compound had attractive properties for potential application in optical storage.

Research on Photochromic Compounds with Synthesis and Properties of a Novel Unsymmetrical Diarylethene with a Benzothiophene and a Pyrrole Group

2014 ◽  
Vol 1003 ◽  
pp. 23-26
Author(s):  
Hong Jing Jia ◽  
Ying Long Fu ◽  
Cong Bin Fan
Keyword(s):  
Thermal Stability ◽  
Potential Application ◽  
Uv Light ◽  
Optical Storage ◽  
Pmma Film ◽  
Good Thermal Stability ◽  
Photochromic Compounds ◽  
Storage Technology ◽  
Hexane Solution

A new unsymmetrical photochromic diarylethene1o, which is named [1-(2-methyl-benzothiophene)-2-(2-cyano-1,5-dimethyl-4-pyrryl)]perfluorocyclopentene, was synthesized. We used it to accomplish recording by optical storage technology as memory medium. Then its photochromic both in hexane solution and in PMMA film and kinetics experiment were investigated in detail. The result indicated that this diarylethene had good thermal stability and exhibited reversible photochromism, changing the color from colorless to violet in hexane solution upon appropriate irradiation with 297 nm UV light, respectively. What is more, the kinetic experiments illustrated that the cyclization/cycloreversion process of this compound was determined to be the zeroth/first reaction. The results demonstrated that the unsymmetrical diarylethene compound1o, which we have synthesized, had attractive properties for potential application in optical storage.

Synthesis of a Photochromic Diarylethene Having Thiazole and a Pyridyl Group for Optical Recording

2010 ◽  
Vol 156-157 ◽  
pp. 650-654 ◽  
Author(s):  
Hui Li ◽  
Yong Liang Xia ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Fluorescent Properties ◽  
Strong Fluorescence ◽  
Pyridyl Group ◽  
Open Ring

A new unsymmetrical photochromic diarylethene namly 1-(2,4-dimethyl-5- thiazolyl)-2- [(2-methyl-5-(2-pyridyl)-3-thienyl)]perfluorocyclopentene was synthesized, and its photochromic and fluorescent properties were also investigated. The compound exhibited good photochromism both in solution and in PMMA film. In PMMA film, The open-ring isomer of the diarylethene 1 exhibited relatively strong fluorescence at 427 nm when excited at 320 nm. The fluorescence intensity declined along with the photochromism upon irradiation with 297 nm light. Using this dithienylethene 1b as optical storage was performed successfully.

Photochromism and Fluorescence of a Novel Unsymmetrical Diarylethene Material Bearing Benzene and Thiophene Ring

2012 ◽  
Vol 164 ◽  
pp. 251-254 ◽  
Author(s):  
Shu Hong Jing ◽  
Shou Zhi Pu ◽  
Hui Li
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Thiophene Ring ◽  
Amorphous Film ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Solid States ◽  
Reversible Cyclization

A new photochromic diarylethene compound, 1-[2-methyl-(5-(4- dioxolane) phenyl)-3-thienyl]-2-(2-methyl-3-benzothiophene)perfluorocyclopentene (1o)was synthesized. Its properties, including photochromism and fluorescence were investigated in detail both in solution and PMMA amorphous film. It underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light in hexane. The compound showed good phtochromism both in solution and in solid states. Diarylethene 1o changed the color from colorless to purple upon irradiation with 297 nm UV light, in which absorption maxima were observed at 539 nm in hexane and at 547nm in PMMA film, respectively. Using diarylethene 1c/PMMA film as recording medium, optical recording was performed successfully. This new photochromic system also exhibited remarkable optical storage character

Synthesis and Property of a Novel Diarylethene Based on Benzofuran and Thienyl Units for Polarization Optical Recording

2011 ◽  
Vol 474-476 ◽  
pp. 1561-1564
Author(s):  
Tao Feng Wang ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order ◽  
Open Ring

A new photochromic diarylethene of bis(3-methyl-2-thienyl)ethene and bis(2-methyl-3- benzofuran)ethene was synthesized. Its photochromic, fluorescent and optical strorage properties were investigated. The compounds exhibited remarkable photochromism both in solution and in PMMA film. In hexane, the open-ring isomer of the diarylethene 1 exhibited relatively strong and clear fluorescent switches when excited at 270 nm. The fluorescence intensity declined along with the photochromism upon irradiation with 297 nm light. The results showed that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

Reaction Kinetics and Optical Storage Characters of a New Diarylethene Materials with Composite Properties

2012 ◽  
Vol 583 ◽  
pp. 105-108
Author(s):  
Shi Qiang Cui ◽  
Yan Hua Yang ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
High Capacity ◽  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
Pmma Film ◽  
Zeroth Order ◽  
Photochromic Properties ◽  
First Order ◽  
Composite Properties

Photochromism; Diarylethene materials; Fluorecence; Reaction kinetics. Abstract. A new unsymmetrical photochromic diarylethene, 1-(2-methyl-5-phenyl-3-thienyl)-2-[2-methyl-5-(4-formyl-phenyl)-3-thienyl]perfluorocyclopentene (1a), was synthesized, and its photochromic properties and reaction kinetics were investigated, respectively. The compound exhibited good photochromism both in solution and in PMMA film with alternating irradiation by UV/Vis light. The cyclization processes of compound 1a belong to the zeroth order reaction, while the cycloreversion processes belong to the first order reaction. The optical recording results indicated that the new photochromic diarylethene can be applied in high capacity optical storage.

Photochromism and Optical Recording of a Novel Photochromic Diarylethene Material Bearing a Phenanthrenyl Unit

2013 ◽  
Vol 788 ◽  
pp. 211-214
Author(s):  
Jun Jie Song ◽  
Gang Liu ◽  
Ren Jie Wang
Keyword(s):  
Fluorescence Intensity ◽  
Uv Light ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Photochromic Properties

A novel unsymmetrical isomeric photochromic diarylethene based on benzofuran, 1-[2-methyl-3-benzofura-2-[2-methyl-5-(10-phenanthrenyl)-3-thienyperfluorocyclopentene, was designed and synthesized. Its fluorescent and photochromic properties were also investigated in detail. The compound exhibited excellent photochromism, changing from colorless to hot pink after irradiation with UV light both in solution and in PMMA film. Furthermore, the fluorescence intensity of the photochromic diarylethene 1a declined remarkably, when irradiation with UV light. Using this diarylethene 1a as optical storage and fluorescence switches was performed successfully.

Synthesis of a Novel Photochromic Diarylethene for Polarization Optical Recording

2011 ◽  
Vol 396-398 ◽  
pp. 2357-2360
Author(s):  
Tao Feng Wang ◽  
Gang Liu ◽  
Wei Jun Liu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order

A novel unsymmetrical photochromic diarylethene compound bearing a benzofuran unit, 1-[2-methyl-5-formyl-3-thienyl]-2-[2-methyl-3-benzofuran-yl]perfluoroyclopentene(1a) have been synthesized, its photochromic, fluorescence and optical strorage properties were investigated. The compound exhibited obviously photochromism both in hexane and in PMMA film. In hexane, the fluorescence intensity of 1a declined along with the photochromism upon irradiation with 297 nm light. The results showed that the cyclization and cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

Synthesis of a New Diarylethene Based on Isoxazole and Benzofuran Units for Polarization Optical Recording

2011 ◽  
Vol 233-235 ◽  
pp. 2476-2479
Author(s):  
Tao Feng Wang ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order

A new photochromic diarylethene1-(3,5-dimethyl-4-isoxazolyl)-2-(2-methyl-3- benzofuran) perfluorocyclopentene (1a) has been synthesized. Its photochromic, fluorescent and optical strorage properties were investigated. The compound exhibited remarkable photochromism and clear fluorescent switches both in solution and in PMMA film. The results showed that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

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