Spectroscopy of Carbazole-based Conjugated Polymers: Optical Absorption, Steady-state Emission and Time-resolved Emission Spectroscopy regards - Softcover

Dey, Ripon

9783843374200: Spectroscopy of Carbazole-based Conjugated Polymers: Optical Absorption, Steady-state Emission and Time-resolved Emission Spectroscopy regards

Softcover

ISBN 10: 3843374201 ISBN 13: 9783843374200

Verlag: LAP LAMBERT Academic Publishing, 2010

Alle Exemplare dieser ISBN-Ausgabe

0 Gebraucht

2 Neu

Von EUR 49,00

This book describes Opto-electronic properties of three new carbazole based co-polymers that can be implemented as host in phosphorescence polymer light-emitting diode. We present absorption, steady-state emission and time resolved emission spectroscopy of carbazole based conjugated polymers. The decay kinetics of triplet emission of the co-polymers was observed after optical excitation. Several findings such as optical band-gap, singlet to singlet transition energies, triplet to triplet transition energies, exchange energies (?EST), Stoke's shift have been presented. The onset of absorption is at 3.10-3.25 eV for P1, P2 and P3 polymers respectively. One emission band originating from singlet excited state is observed at RT. The gaps between singlet and triplet excited states are 0.44-0.47 eV. From decay kinetics the triplet excited state life-times were found to be several orders of ms at 10-13 K that reduces to less than 3 ms at room temperature. At room temperature delayed fluorescence has been observed for all three polymers. An energy band diagram including lower lying excited states has been constructed and compared.

Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.

�ber die Autorin bzw. den Autor

R. Dey es profesor adjunto de contabilidad en el Phulbari Govt. College de Bangladesh. Ha publicado art�culos sobre el riesgo financiero, la estructura de capital y la escasez de agua en prestigiosas revistas arbitradas.S. Hossain es profesor de contabilidad en la Universidad de Rajshahi. Posee una larga experiencia en la ense�anza, la investigaci�n y la administraci�n acad�mica.

��ber diesen Titel� kann sich auf eine andere Ausgabe dieses Titels beziehen.

Verlag: LAP LAMBERT Academic Publishing
Erscheinungsdatum: 2010
Sprache: Englisch
ISBN 10: 3843374201
ISBN 13: 9783843374200
Einband: Taschenbuch
Anzahl der Seiten: 108
Kontakt zum Hersteller: Nicht verf�gbar
Verantwortliche Person: Saarbr�cker Vlg. f. Rechtswissensch.
customerservice@vdm-vsg.de

Brivibas gatve 197
Riga
1039
Lettland

Suchergebnisse f�r Spectroscopy of Carbazole-based Conjugated Polymers:...

Foto des Verk�ufers

Spectroscopy of Carbazole-based Conjugated Polymers

Ripon Dey

Verlag: LAP LAMBERT Academic Publishing Nov 2010, 2010

ISBN 10: 3843374201 ISBN 13: 9783843374200

Neu Taschenbuch

Anbieter: buchversandmimpf2000, Emtmannsberg, BAYE, Deutschland

Verk�uferbewertung 5 von 5 Sternen

Taschenbuch. Zustand: Neu. Neuware -This book describes Opto-electronic properties of three new carbazole based co-polymers that can be implemented as host in phosphorescence polymer light-emitting diode. We present absorption, steady-state emission and time resolved emission spectroscopy of carbazole based conjugated polymers. The decay kinetics of triplet emission of the co-polymers was observed after optical excitation. Several findings such as optical band-gap, singlet to singlet transition energies, triplet to triplet transition energies, exchange energies (�EST), Stoke''s shift have been presented. The onset of absorption is at 3.10-3.25 eV for P1, P2 and P3 polymers respectively. One emission band originating from singlet excited state is observed at RT. The gaps between singlet and triplet excited states are 0.44-0.47 eV. From decay kinetics the triplet excited state life-times were found to be several orders of ms at 10-13 K that reduces to less than 3 ms at room temperature. At room temperature delayed fluorescence has been observed for all three polymers. An energy band diagram including lower lying excited states has been constructed and compared.Books on Demand GmbH, �berseering 33, 22297 Hamburg 108 pp. Englisch. Artikel-Nr. 9783843374200

Verk�ufer kontaktieren