Degradation of organic light-emitting diode

被引：0

作者：

Caria, S. ^{[1
]}

Zamboni, R. ^{[1
]}

Murgia, M. ^{[1
]}

Melpignano, P. ^{[1
]}

Biondo, V. ^{[1
]}

Aballe, L. ^{[1
]}

Barinov, A. ^{[1
]}

Gardonio, S. ^{[1
]}

Gregoratti, L. ^{[1
]}

Kiskinova, M. ^{[1
]}

机构：

[1] CNR, Ist Studio Mat Nanostrutt, Via P Gobetti 101, I-40129 Bologna, Italy

来源：

ORGANIC OPTOELECTRONICS AND PHOTONICS II | 2006年 / 6192卷

关键词：

OLEDs; photoelectron spectroscopy; degradation processes;

D O I：

10.1117/12.663649

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Ultra high vacuum operated prototypical organic light emitting diodes have been investigated by using chemically sensitive x-ray photoelectron microscopy. The mechanism of dark spot formation and degradation of organic light-emitting devices have been imaged and spectroscopically measured. The morphology and the chemical composition of the Al cathode reveal the formation of volcano like defects as a result of local micro-explosions. The chemical maps and micro-spot spectra identify a release of volatile In-, Sri- and C-containing species, including metallic In, supporting the evidence that the degradation process is driven by local decomposition of the ITO/organic interface.

引用

页数：7

共 19 条

[1]

Attwood D., 1999, SOFT XRAYS EXTREME U

[2] Degradation phenomena in small-molecule organic light-emitting devices [J].

Aziz, H ;

Popovic, ZD .

CHEMISTRY OF MATERIALS, 2004, 16 (23) :4522-4532

[3] LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].

BURROUGHES, JH ;

BRADLEY, DDC ;

BROWN, AR ;

MARKS, RN ;

MACKAY, K ;

FRIEND, RH ;

BURN, PL ;

HOLMES, AB .

NATURE, 1990, 347 (6293) :539-541

[4] High resolution x-ray photoemission study of plasma oxidation of indium-tin-oxide thin film surfaces [J].

Christou, V ;

Etchells, M ;

Renault, O ;

Dobson, PJ ;

Salata, OV ;

Beamson, G ;

Egdell, RG .

JOURNAL OF APPLIED PHYSICS, 2000, 88 (09) :5180-5187

[5] Highly-bright white organic light-emitting diodes based on a single emission layer [J].

Chuen, CH ;

Tao, YT .

APPLIED PHYSICS LETTERS, 2002, 81 (24) :4499-4501

[6] Blue organic electrophosphorescence using exothermic host-guest energy transfer [J].

Holmes, RJ ;

Forrest, SR ;

Tung, YJ ;

Kwong, RC ;

Brown, JJ ;

Garon, S ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 2003, 82 (15) :2422-2424

[7]

HUANG Q, 2003, APPL PHYS LETT, V82

[8] Degradation and failure of organic light-emitting devices [J].

Ke, L ;

Chua, SJ ;

Zhang, K ;

Yakovlev, N .

APPLIED PHYSICS LETTERS, 2002, 80 (12) :2195-2197

[9] Effect of substrate temperature on the bonded states of indium tin oxide thin films deposited by plasma enhanced chemical vapor deposition [J].

Kim, YS ;

Park, YC ;

Ansari, SG ;

Lee, BS ;

Shin, HS .

THIN SOLID FILMS, 2003, 426 (1-2) :124-131

[10] Advanced light emitting diodes structures for optoelectronic applications [J].

Kovac, J ;

Peternai, L ;

Lengyel, O .

THIN SOLID FILMS, 2003, 433 (1-2) :22-26

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