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Highly Transparent and Conductive CdO Thin Films as Anodes for Organic Light-Emitting Diodes

  • Yu Yang (a1), Qinglan Huang (a1), Andrew W. Metz (a1), Shu Jin (a1), Jun Ni (a1), Lian Wang (a1) and Tobin J. Marks (a1)...

Abstract

In this paper, CdO thin films are used for the first time as transparent anodes for organic light-emitting diodes (OLEDs). Highly conductive and transparent CdO thin films have been grown on glass and on single-crystal MgO(100) by low pressure metal-organic chemical vapor deposition (MOCVD) at 400°C, and were implemented in small-molecule OLED fabrication. Device response and applications potential have been investigated and compared with those of commercial ITO-based control devices. It is found that as-deposited CdO thin films are capable of injecting holes into such devices, rendering them promising anode materials for OLEDs. A maximum luminance of 32,000 cd/m2 and an external forward quantum efficiency of 1.4 %, with a turn-on voltage of 3.2 V are achieved on MgO(100)/CdO-based devices.

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Highly Transparent and Conductive CdO Thin Films as Anodes for Organic Light-Emitting Diodes

  • Yu Yang (a1), Qinglan Huang (a1), Andrew W. Metz (a1), Shu Jin (a1), Jun Ni (a1), Lian Wang (a1) and Tobin J. Marks (a1)...

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