- Titel
- OLEDs
- Untertitel
- Light-emitting thin film thermistors revealing advanced selfheating effects
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-350540
- Konferenz
- SPIE Organic Photonics + Electronics. San Diego, 9.-13. August 2015
- Quellenangabe
- Organic Light Emitting Materials and Devices XIX
Herausgeber: Franky So
Herausgeber: Chihaya Adachi
Herausgeber: Jang-Joo Kim
Erscheinungsort: Bellingham, Wash.
Verlag: SPIE
Erscheinungsjahr: 2015
Titel Schriftenreihe: Proceedings of SPIE
Bandnummer Schriftenreihe: 9566 - Erstveröffentlichung
- 2015
- Abstract (EN)
- Large area OLEDs show pronounced Joule self-heating at high brightness. This heating induces brightness inhomogeneities, drastically increasing beyond a certain current level. We discuss this behavior considering 'S'-shaped negative differential resistance upon self-heating, even allowing for 'switched-back' regions where the luminance finally decreases (Fischer et al., Adv. Funct. Mater. 2014, 24, 3367). By using a multi-physics simulation the device characteristics can be modeled, resulting in a comprehensive understanding of the problem. Here, we present results for an OLED lighting panel considered for commercial application. It turns out that the strong electrothermal feedback in OLEDs prevents high luminance combined with a high degree of homogeneity unless new optimization strategies are considered.
- Andere Ausgabe
- Link zum Artikel, der zuerst in der Zeitschrift 'Proceedings of SPIE' erschienen ist.
DOI: 10.1117/12.2186940 - Freie Schlagwörter (DE)
- Organische lichtemittierende Diode OLED, Joule Selbsterhitzung, Helligkeitsinhomogenität, Negativ-Dierential Widerstand, Elektrothermische Rückführung, Beleuchtungspanel, Organischer Halbleiter, Großflächig
- Freie Schlagwörter (EN)
- Organic light-emitting diode OLED, Joule self-heating, Brightness inhomogeneity, Negative differential resistance, Electrothermal feedback, Lighting panel, Organic semiconductor, Large area
- Klassifikation (DDC)
- 620
- Verlag
- SPIE, Bellingham, Wash.
- Förder- / Projektangaben
- Einstein Foundation Berlin ECMath
Electrothermal modeling of large-area OLEDs - Deutsche Forschungsgemeinschaft Semiconductor Nanophotonics
ID: 43659573 - European Commission EFRE
Next-O-Light
ID: 100135204 - Free State of Saxony EFRE
Next-O-Light
ID: 100135204 - European Commission Seventh Framework Programme
NUDEV
ID: FP7267995 - Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-350540
- Veröffentlichungsdatum Qucosa
- 29.08.2019
- Dokumenttyp
- Konferenzbeitrag
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
