Improved performances in organic and polymer light‐emitting diodes using solution‐processed vanadium pentoxide as a hole injection layer | Zendy

Lee Hyunkoo | Zendy; Kwon Yongwon | Zendy; Lee Changhee | Zendy

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Improved performances in organic and polymer light‐emitting diodes using solution‐processed vanadium pentoxide as a hole injection layer

Author(s) -

Lee Hyunkoo,

Kwon Yongwon,

Lee Changhee

Publication year - 2012

Publication title -

journal of the society for information display

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.578

H-Index - 52

eISSN - 1938-3657

pISSN - 1071-0922

DOI - 10.1002/jsid.126

Subject(s) - pedot:pss , materials science , pentoxide , layer (electronics) , vanadium , diode , optoelectronics , oled , polymer , light emitting diode , composite material , metallurgy

We report that a solution‐processed vanadium pentoxide (V 2 O 5 ) layer can be utilized as an effective and stable hole injection layer in organic light‐emitting diodes and polymer light‐emitting diodes instead of polyethylene dioxythiophene : polystyrenesulfonate (PEDOT : PSS). The organic light‐emitting diode and polymer light‐emitting diode with the V 2 O 5 layer have driving voltages that are 2.2 and 0.3 V lower for 1000 cd/m 2 , respectively, than the devices with PEDOT : PSS. In addition, the devices with the V 2 O 5 layer show improved operational stability compared with the devices with PEDOT : PSS. Therefore, a solution‐processed V 2 O 5 layer can be utilized as an effective and stable hole injection layer instead of PEDOT : PSS.

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