Inorganic-organic hybrid structured LED's

被引：0

作者：

Gebauer, T ^{[1
]}

Schmid, G ^{[1
]}

机构：

[1] Univ Essen Gesamthsch, Inst Anorgan Chem, D-45117 Essen, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1999年 / 625卷 / 07期

关键词：

three-layered heterocontact light emitting diodes; perovskites; spin-coating;

D O I：

10.1002/(SICI)1521-3749(199907)625:7<1124::AID-ZAAC1124>3.3.CO;2-K

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three-layered heterocontact light emitting diodes (LED's) were generated by spin-coating processes Perovskites of the type [C6H5(CH3)CHNH3](2)PbX4 (X = Cl, Br) on ITO glass served as p-semiconductors, while 1,3,5-[5-(4-tert-butylphenyl)-2-oxadiazyl]benzene (Starburst) in polystyrene was selected as the organic n-semiconductor. As a zone for the electron-hole recombination between p- and n-semiconductor layer a poly(N-vinylcarbazole)-layer, doped with 3(2-benzothiazolyl)-7-diethylamino-coumarin (Coumarin6), as emitter molecule was used. A Mg:Ag electrode served as the cathode on the Starburst: polystyrene blend. Both diodes showed green luminescence at 7 V. The external quantum yield of the diode with the PbCl42 perovskite was 0.4%, but only 0.06% for PbBr42-. This is due to the different band structures of the layered perovskites.

引用

页码：1124 / 1128

页数：5

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