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Martin - マーチン ♦
Martin - マーチン ♦
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I have prepared a thin film containing 4,4'-azobenzene dicarboxylic acid and I want to study the photoresponsive behaviour of them. For the trans-cis isomeration , I used a 365 nm UV LED with irradiation intensity varied in the range of 5-50 mW/cm$^2$cm². Not seeing any isomeration I have the doubt if I am using the right lamp. Articles which have prepared thin films containing 4,4'-azobenzene dicarboxylic acid have used other types of lamps such as 200 W Xenon-doped mercury lamp(using a 355 nm cut off filter), 500 W high pressure mercury lamp or 400 W high pressure mercury lamp. I also took the UV-Visible spectroscopy of my films and noticed that the absorption of trans azobenzene-4,4'-dicarboxylic acid is centered at 330 nm.

Am I using the right lamp?

I have prepared a thin film containing 4,4'-azobenzene dicarboxylic acid and I want to study the photoresponsive behaviour of them. For the trans-cis isomeration , I used a 365 nm UV LED with irradiation intensity varied in the range of 5-50 mW/cm$^2$. Not seeing any isomeration I have the doubt if I am using the right lamp. Articles which have prepared thin films containing 4,4'-azobenzene dicarboxylic acid have used other types of lamps such as 200 W Xenon-doped mercury lamp(using a 355 nm cut off filter), 500 W high pressure mercury lamp or 400 W high pressure mercury lamp. I also took the UV-Visible spectroscopy of my films and noticed that the absorption of trans azobenzene-4,4'-dicarboxylic acid is centered at 330 nm.

Am I using the right lamp?

I have prepared a thin film containing 4,4'-azobenzene dicarboxylic acid and I want to study the photoresponsive behaviour of them. For the trans-cis isomeration , I used a 365 nm UV LED with irradiation intensity varied in the range of 5-50 mW/cm². Not seeing any isomeration I have the doubt if I am using the right lamp. Articles which have prepared thin films containing 4,4'-azobenzene dicarboxylic acid have used other types of lamps such as 200 W Xenon-doped mercury lamp(using a 355 nm cut off filter), 500 W high pressure mercury lamp or 400 W high pressure mercury lamp. I also took the UV-Visible spectroscopy of my films and noticed that the absorption of trans azobenzene-4,4'-dicarboxylic acid is centered at 330 nm.

Am I using the right lamp?

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edit approved Mar 8, 2017 at 12:02
schneiderfelipe
edit approved Mar 8, 2017 at 12:02
schneiderfelipe
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How to choose a UV lamp for photoisomerization of 4,4'- azobenzeneazobenzene dicarboxylic acid?

I have prepared a thin film containing 4,4'- azobenzeneazobenzene dicarboxylic acid and I want to study the photoresponsive behaviour of them. For the trans-cis isomeration , I used a 365 nm UV LED with irradiation intensity varied in the range of 5-50mW50 mW/cm2cm$^2$. Not seeing any isomeration I have the doubt if I am using the right lamp. Articles which have prepared thin films containing 4,4'- azobenzeneazobenzene dicarboxylic acid have used other types of lamps such as 200w200 W Xenon-doped mercury lamp(using a 355nm355 nm cut off filter), 500W500 W high pressure mercury lamp or 400W400 W high pressure mercury lamp. I also took the UV-Visible spectroscopy of my films and noticed that the absorption of trans azobenzene-4,4'-dicarboxylic acid is centered at 330nm330 nm. Am

Am I using the right Lamplamp?

How to choose a UV lamp for photoisomerization of 4,4'- azobenzene dicarboxylic acid?

I have prepared a thin film containing 4,4'- azobenzene dicarboxylic acid and I want to study the photoresponsive behaviour of them. For the trans-cis isomeration , I used a 365 nm UV LED with irradiation intensity varied in the range of 5-50mW/cm2. Not seeing any isomeration I have the doubt if I am using the right lamp. Articles which have prepared thin films containing 4,4'- azobenzene dicarboxylic acid have used other types of lamps such as 200w Xenon-doped mercury lamp(using a 355nm cut off filter), 500W high pressure mercury lamp or 400W high pressure mercury lamp. I also took the UV-Visible spectroscopy of my films and noticed that the absorption of trans azobenzene-4,4'-dicarboxylic acid is centered at 330nm. Am I using the right Lamp?

How to choose a UV lamp for photoisomerization of 4,4'-azobenzene dicarboxylic acid?

I have prepared a thin film containing 4,4'-azobenzene dicarboxylic acid and I want to study the photoresponsive behaviour of them. For the trans-cis isomeration , I used a 365 nm UV LED with irradiation intensity varied in the range of 5-50 mW/cm$^2$. Not seeing any isomeration I have the doubt if I am using the right lamp. Articles which have prepared thin films containing 4,4'-azobenzene dicarboxylic acid have used other types of lamps such as 200 W Xenon-doped mercury lamp(using a 355 nm cut off filter), 500 W high pressure mercury lamp or 400 W high pressure mercury lamp. I also took the UV-Visible spectroscopy of my films and noticed that the absorption of trans azobenzene-4,4'-dicarboxylic acid is centered at 330 nm.

Am I using the right lamp?

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Aida
Aida
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How to choose a UV lamp for photoisomerization of 4,4'- azobenzene dicarboxylic acid?

I have prepared a thin film containing 4,4'- azobenzene dicarboxylic acid and I want to study the photoresponsive behaviour of them. For the trans-cis isomeration , I used a 365 nm UV LED with irradiation intensity varied in the range of 5-50mW/cm2. Not seeing any isomeration I have the doubt if I am using the right lamp. Articles which have prepared thin films containing 4,4'- azobenzene dicarboxylic acid have used other types of lamps such as 200w Xenon-doped mercury lamp(using a 355nm cut off filter), 500W high pressure mercury lamp or 400W high pressure mercury lamp. I also took the UV-Visible spectroscopy of my films and noticed that the absorption of trans azobenzene-4,4'-dicarboxylic acid is centered at 330nm. Am I using the right Lamp?