Jablonksi Diagram - Revision history

Cmditradmin: /* External Links */

2010-08-10T19:04:59Z

External Links

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	== External Links ==		== External Links ==
	* [http://micro.magnet.fsu.edu/primer/java/jablonski/lightandcolor/index.html Florida State University: Jablonski diagram primer]		* [http://micro.magnet.fsu.edu/primer/java/jablonski/lightandcolor/index.html Florida State University: Jablonski diagram primer]
	*~~See~~ [[wikipedia:Jablonski_diagram]]		*[[wikipedia:Jablonski_diagram]]

	*[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.scrubber.swf Flash animation of processes involved in Jablonski diagram- Sam Houston University]		*[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.scrubber.swf Flash animation of processes involved in Jablonski diagram- Sam Houston University]

Cmditradmin: /* External Links */

2010-08-10T19:04:46Z

External Links

← Older revision		Revision as of 12:04, 10 August 2010
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	== External Links ==		== External Links ==
	* [http://micro.magnet.fsu.edu/primer/java/jablonski/lightandcolor/index.html Florida State University: Jablonski diagram primer]		* [http://micro.magnet.fsu.edu/primer/java/jablonski/lightandcolor/index.html Florida State University: Jablonski diagram primer]
	See [[wikipedia:Jablonski_diagram]]		*See [[wikipedia:Jablonski_diagram]]

	[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.scrubber.swf Flash animation of processes involved in Jablonski diagram- Sam Houston University]		*[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.scrubber.swf Flash animation of processes involved in Jablonski diagram- Sam Houston University]
	[[category:absorption]]		[[category:absorption]]
	<table id="toc" style="width: 100%">		<table id="toc" style="width: 100%">

Cmditradmin: /* External Links */

2010-08-10T19:03:31Z

External Links

← Older revision		Revision as of 12:03, 10 August 2010
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	See [[wikipedia:Jablonski_diagram]]		See [[wikipedia:Jablonski_diagram]]

	[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.swf Flash animation of processes involved in Jablonski diagram]		[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.scrubber.swf Flash animation of processes involved in Jablonski diagram- Sam Houston University]
	[[category:absorption]]		[[category:absorption]]
	<table id="toc" style="width: 100%">		<table id="toc" style="width: 100%">

Cmditradmin: /* External Links */

2010-08-10T18:59:03Z

External Links

← Older revision		Revision as of 11:59, 10 August 2010
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	== External Links ==		== External Links ==
			* [http://micro.magnet.fsu.edu/primer/java/jablonski/lightandcolor/index.html Florida State University: Jablonski diagram primer]
	See [[wikipedia:Jablonski_diagram]]		See [[wikipedia:Jablonski_diagram]]

Cmditradmin: /* External Links */

2010-08-10T18:56:58Z

External Links

← Older revision		Revision as of 11:56, 10 August 2010
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	== External Links ==		== External Links ==

	See [[wikipedia:Jablonski_diagram ~~Jablonksi diagram~~]]		See [[wikipedia:Jablonski_diagram]]

	[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.swf Flash animation of processes involved in Jablonski diagram]		[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.swf Flash animation of processes involved in Jablonski diagram]

Cmditradmin: /* External Links */

2010-08-09T18:50:14Z

External Links

← Older revision		Revision as of 11:50, 9 August 2010
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	== External Links ==		== External Links ==

	See ~~Wikipedia on~~ [~~http~~:~~//en.wikipedia.org/wiki/~~Jablonski_diagram Jablonksi diagram]		See [[wikipedia:Jablonski_diagram Jablonksi diagram]]

	[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.swf Flash animation of processes involved in Jablonski diagram]		[http://www.shsu.edu/~chm_tgc/sounds/flashfiles/Jablonski.swf Flash animation of processes involved in Jablonski diagram]

Knoone: /* Meaning of Levels */

2010-06-15T23:05:15Z

Meaning of Levels

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	Molecules can progress from state to state via either radiative or nonradiative processes. Graphically, nonradiative transitions are shown as straight lines and radiative transitions are shown with squiggly lines on a Jablonski diagram.		Molecules can progress from state to state via either radiative or nonradiative processes. Graphically, nonradiative transitions are shown as straight lines and radiative transitions are shown with squiggly lines on a Jablonski diagram.

	The ~~Y axis represents the~~ spin multiplicity. ~~There is singlet~~ spin multiplicity ~~where~~ the total spin ~~number~~ is zero. Since any plus ½ spin corresponds to a minus ½ spin, the total spin results as zero. There is a single way of putting all the spins so this is referred to as a '''singlet state'''. It is also possible to have '''triplet states''' that have total spin number is +1.		The spin multiplicity of states are spatially separated along the x-axis of a Jablonski diagram. Singlet spin multiplicity exists when the total spin of the system is zero. Since any plus ½ spin corresponds to a minus ½ spin, the total spin results as zero. There is a single way of putting all the spins so this is referred to as a '''singlet state'''. It is also possible to have '''triplet states''' that have total spin number is +1.

	:'''T<sub>1</sub>''' shows the lowest excited triplet state. S<sub>1</sub> refers to the excited singlet state. The 0 refers to the ground state.		:'''T<sub>1</sub>''' shows the lowest excited triplet state. S<sub>1</sub> refers to the excited singlet state. The 0 refers to the ground state.

Knoone: /* Meaning of Levels */

2010-06-15T23:02:21Z

Meaning of Levels

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	:'''T<sub>1</sub>''' is the first excited triplet state and T<sub>n</sub> is the nth excited state.		:'''T<sub>1</sub>''' is the first excited triplet state and T<sub>n</sub> is the nth excited state.

	~~There is an energy~~ axis labeled E. ~~These levels~~ can be also described ~~through~~ potential energy surfaces. Within ~~within~~ each state~~, you have~~ a range of vibrational levels. Vibrational ground states are shown with thick lines and higher vibrational states are shown with thin lines. ~~Nonradiative~~ transitions are shown ~~with~~ straight lines and radiative transitions are shown with squiggly lines.		The y-axis, labeled E, indicates the relative energies of the states. In more complex Jablonski diagrams, the states can be also described as potential energy surfaces. Within each electronic state exist a range of vibrational levels. Vibrational ground states are shown with thick lines and higher vibrational states are shown with thin lines.

			Molecules can progress from state to state via either radiative or nonradiative processes. Graphically, nonradiative transitions are shown as straight lines and radiative transitions are shown with squiggly lines on a Jablonski diagram.

	The Y axis represents the spin multiplicity. There is singlet spin multiplicity where the total spin number is zero. Since any plus ½ spin corresponds to a minus ½ spin, the total spin results as zero. There is a single way of putting all the spins so this is referred to as a '''singlet state'''. It is also possible to have '''triplet states''' that have total spin number is +1.		The Y axis represents the spin multiplicity. There is singlet spin multiplicity where the total spin number is zero. Since any plus ½ spin corresponds to a minus ½ spin, the total spin results as zero. There is a single way of putting all the spins so this is referred to as a '''singlet state'''. It is also possible to have '''triplet states''' that have total spin number is +1.

Knoone: /* Meaning of Levels */

2010-06-15T22:57:56Z

Meaning of Levels

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	:'''S<sub>0</sub>''' is the ground state of the molecule,		:'''S<sub>0</sub>''' is the ground state of the molecule,

	:'''S<sub>1</sub>''' is the first excited state and S<sub>n</sub> is the nth excited state.		:'''S<sub>1</sub>''' is the first excited singlet state and S<sub>n</sub> is the nth excited state.

			:'''T<sub>1</sub>''' is the first excited triplet state and T<sub>n</sub> is the nth excited state.

	There is an energy axis labeled E. These levels can be also described through potential energy surfaces. Within within each state, you have a range of vibrational levels. Vibrational ground states are shown with thick lines and higher vibrational states are shown with thin lines. Nonradiative transitions are shown with straight lines and radiative transitions are shown with squiggly lines.		There is an energy axis labeled E. These levels can be also described through potential energy surfaces. Within within each state, you have a range of vibrational levels. Vibrational ground states are shown with thick lines and higher vibrational states are shown with thin lines. Nonradiative transitions are shown with straight lines and radiative transitions are shown with squiggly lines.

Knoone at 22:56, 15 June 2010

2010-06-15T22:56:44Z

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	</table>		</table>

	Jablonski diagrams are common representations of the possible electronic states and transitions as molecules enter and leave the excited state. Aleksander Jabłoński was a Polish scientist who did significant research on fluorescence and molecular photophysics in the 1930's. Jablonski diagrams describe the electronic states of molecules, transitions and associated light emitting phenomena. ~~They look somewhat similar to~~ bandgap diagrams ~~but are~~ not the ~~same thing~~.		Jablonski diagrams are common representations of the possible electronic states and transitions as molecules enter and leave the excited state. Aleksander Jabłoński was a Polish scientist who did significant research on fluorescence and molecular photophysics in the 1930's. Jablonski diagrams describe the electronic states of molecules, transitions and associated light emitting phenomena. Though Jablonski diagrams resemble one-electron bandgap diagrams, they represent different things. Horizontal lines in a Jablonski diagram represent energetic states of a molecule or system, not the discrete electronic energy levels depicted in one-electron diagrams.

	[[Image:Jablonski.png\|thumb\|400px\|Several processes are illustrated and are indicated by the rate constants that characterize the processes shown, including absorption of light, fluorescence, internal conversion, intersystem crossing and phosphorescence]]		[[Image:Jablonski.png\|thumb\|400px\|Several processes are illustrated and are indicated by the rate constants that characterize the processes shown, including absorption of light, fluorescence, internal conversion, intersystem crossing and phosphorescence]]