Three-color reconfigurable organic light-emitting devices

Wu, Chung-Chih; Chen, Chieh-Wei; Cho, Ting-Yi
July 2003
Applied Physics Letters;7/28/2003, Vol. 83 Issue 4, p611
Academic Journal
This report reveals utilization of phase transitions and corresponding changes in physical properties of organic semiconductors for implementing reconfigurable organic optoelectronic devices, i.e., a device whose configurations and characteristics can be programed after fabrication. Specifically, glass transitions of amorphous molecular materials have been exploited to demonstrate reconfigurable organic light-emitting devices (OLEDs) capable of generating any of the three primary colors. The capability to pattern such devices into fine color pixels with thermal imaging renders it attractive for applications in high-resolution full-color OLED displays and as active optical memory devices.


Related Articles

  • LIGHTING BASED ON ORGANIC LIGHT EMITTING DIODES. Amelung, Joerg; Eritt, Michael; Kirchhof, Christian // Light & Engineering;2011, Vol. 19 Issue 2, p42 

    The Organic Light Emitting Diode (OLED) technology is the first real area light source technology in history. It overcomes traditional restrictions by point source lighting technologies. OLED lighting is a very new technology on the market and design, technology and integration aspects influence...

  • Improved light outcoupling for top-emitting organic light-emitting devices. Shufen Chen; Zhonghai Jie; Zhenyuan Zhao; Gang Cheng; Zhijun Wu; Yi Zhao; Baofu Quan; Shiyong Liu; Li, Xue; Xie, Wenfa // Applied Physics Letters;7/24/2006, Vol. 89 Issue 4, p043505 

    Light outcoupling for the top-emitting organic light-emitting device (TEOLED) with the structure of Si/SiO2/Ag/Ag2O/4,4′, 4″-tris(3-methylphenylphenylamino)triphenylamine/4, 4′-bis[N-(1-naphthyl-1-)-N-phenyl-amino]-biphenyl/tris-(8-hydroxyquinoline) aluminum (Alq3)/LiF/Al/Ag is...

  • White organic light-emitting devices with a phosphorescent multiple emissive layer. Gang Cheng; Yingfang Zhang; Yi Zhao; Yuanyuan Lin; Chunyan Ruan; Shiyong Liu; Teng Fei; Yuguang Ma; Yanxiang Cheng // Applied Physics Letters;7/24/2006, Vol. 89 Issue 4, p043504 

    A phosphorescent multiple emissive layer, in which a blue emissive layer is sandwiched between red and green ones, is employed in a white organic light-emitting device (OLED). This OLED has a maximum luminance of 48 000 cd/m2 at 17 V, a maximum power efficiency of 9.9 lm/W at 4 V, and a color...

  • Lithium doping of semiconducting organic charge transport materials. Parthasarathy, G.; Shen, C.; Kahn, A.; Forrest, S. R. // Journal of Applied Physics;5/1/2001, Vol. 89 Issue 9, p4986 

    We study the effects of lithium (Li) incorporation in the cathodes of organic light-emitting devices. A thermally evaporated surface layer of metallic Li is found to diffuse through, and subsequently dope, the electron transporting organic semiconducting thin films immediately below the cathode,...

  • Effect of polymer-insulating nanolayers on electron injection in polymer light-emitting diodes. Jong Hyeok Park, Michael J.; O Ok Park; Jae-Woong Yu; Jai Kyeong Kim; Young Chul Kim // Applied Physics Letters;3/8/2004, Vol. 84 Issue 10, p1783 

    We report the effect of polymer-insulating nanolayers on electron injection in the polymer light-emitting diodes (PLEDs) in which a hole is the major charge carrier. Several different polymer nanolayers with varying dielectric constants were placed between the emitting layer and the aluminum...

  • Use of cross-linkable polyfluorene in the fabrication of multilayer polyfluorene-based light-emitting diodes with improved efficiency. Charas, A.; Alves, H.; Alcácer, L.; Morgado, J. // Applied Physics Letters;10/2/2006, Vol. 89 Issue 14, p143519 

    The authors report the use of a cross-linkable polyfluorene to fabricate multilayer light-emitting diodes (LEDs), thereby avoiding the restriction to combine polymeric solutions in different solvents. In particular, we find that for LEDs fabricated with a hole-injection layer of...

  • Exciton quenching in poly(phenylene vinylene) polymer light-emitting diodes. Markov, D. E.; Blom, P. W. M. // Applied Physics Letters;12/5/2005, Vol. 87 Issue 23, p233511 

    The quenching of excitons at the metallic cathode of a polymer light-emitting diode (PLED) has been investigated by time-resolved photoluminescence. The decay of the luminescence is analyzed including both nonradiative energy transfer to the metallic cathode and exciton diffusion. Incorporation...

  • Saturated blue-violet electroluminescence from single ZnO micro/nanowire and p-GaN film hybrid light-emitting diodes. Li, Xin; Qi, Junjie; Zhang, Qi; Wang, Qi; Yi, Fang; Wang, Zengze; Zhang, Yue // Applied Physics Letters;6/3/2013, Vol. 102 Issue 22, p221103 

    Saturated electroluminescence behavior was observed in single ZnO micro/nanowire and GaN film heterojunctions fabricated by transferring an individual ZnO micro/nanowire onto p-type GaN substrate. A strong blue emission of ∼460 nm was observed, as a result of interfacial radiative...

  • Photodegradation and wavelength dependency of blue polymer light-emitting diode devices. Colditz, H. J. O.; Kurt, R.; Büchel, M. // Applied Physics Letters;12/19/2005, Vol. 87 Issue 25, p253505 

    A systematic study of the wavelength dependency of the photodegradation of blue polymer light-emitting diodes is reported. Clearly two different regions can be distinguished, inside the absorption band, where the strongest and permanent photodegradation is found, and at wavelengths above the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics