SEMICONDUCTOR DEVICES

Spectrum study of top-emitting organic light-emitting devices with micro-cavity structure

Liu Xiang, Wei Fuxiang and Liu Hui

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Abstract: Blue and white top-emitting organic light-emitting devices OLEDs with cavity effect have been fabri-cated. TBADN:3%DSAPh and Alq3:DCJTB/TBADN:TBPe/Alq3:C545 were used as emitting materials of micro-cavity OLEDs. On a patterned glass substrate, silver was deposited as reflective anode, and copper phthalocyanine (CuPc) layer as HIL and 4’-bis[N-(1-Naphthyl)- N-phenyl-amino]biphenyl (NPB) layer as HTL were made. Al/Ag thin films were made as semi-transparent cathode with a transmittance of about 30%. By changing the thickness of indium tin oxide ITO, deep blue with Commission Internationale de L’Eclairage chromaticity coordinates (CIEx,y) of (0.141, 0.049) was obtained on TBADN:3%DSAPh devices, and different color (red, blue and green) was obtained on Alq3:DCJTB/TBADN:TBPe/Alq3:C545 devices, full width at half maxima (FWHM) was only 17 nm. The spectral intensity and FWHM of emission in cavity devices have also been studied.

Key words: microcavity top-emitting semi-transparent cathode

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    Received: 18 August 2015 Revised: 03 November 2008 Online: Published: 01 April 2009

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      Liu Xiang, Wei Fuxiang, Liu Hui. Spectrum study of top-emitting organic light-emitting devices with micro-cavity structure[J]. Journal of Semiconductors, 2009, 30(4): 044007. doi: 10.1088/1674-4926/30/4/044007 Liu X, Wei F X, Liu H. Spectrum study of top-emitting organic light-emitting devices with micro-cavity structure[J]. J. Semicond., 2009, 30(4): 044007. doi:  10.1088/1674-4926/30/4/044007.Export: BibTex EndNote
      Citation:
      Liu Xiang, Wei Fuxiang, Liu Hui. Spectrum study of top-emitting organic light-emitting devices with micro-cavity structure[J]. Journal of Semiconductors, 2009, 30(4): 044007. doi: 10.1088/1674-4926/30/4/044007

      Liu X, Wei F X, Liu H. Spectrum study of top-emitting organic light-emitting devices with micro-cavity structure[J]. J. Semicond., 2009, 30(4): 044007. doi:  10.1088/1674-4926/30/4/044007.
      Export: BibTex EndNote

      Spectrum study of top-emitting organic light-emitting devices with micro-cavity structure

      doi: 10.1088/1674-4926/30/4/044007
      • Received Date: 2015-08-18
      • Accepted Date: 2008-09-04
      • Revised Date: 2008-11-03
      • Published Date: 2009-04-07

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