2015
DOI: 10.1016/j.orgel.2014.11.008
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Simplified phosphorescent organic light-emitting diodes with a WO3-doped wide bandgap organic charge transport layer

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Cited by 11 publications
(6 citation statements)
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“…Suitable p-type dopants for wide bandgap CBP include transition metal oxides such as MoO 3 , and WO 3 which have a large electron affinity above 6.0 eV [9]. Our recent study has confirmed the effectiveness of WO 3 doping in CBP when the doping level is greater than 10mol% [9]. It has also been found that to facilitate hole injection, the doped layer thickness needs to be greater than 5 nm.…”
Section: Resultsmentioning
confidence: 56%
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“…Suitable p-type dopants for wide bandgap CBP include transition metal oxides such as MoO 3 , and WO 3 which have a large electron affinity above 6.0 eV [9]. Our recent study has confirmed the effectiveness of WO 3 doping in CBP when the doping level is greater than 10mol% [9]. It has also been found that to facilitate hole injection, the doped layer thickness needs to be greater than 5 nm.…”
Section: Resultsmentioning
confidence: 56%
“…This would facilitate hole injection through tunneling, and effectively reduce the overall hole injection barrier. Suitable p-type dopants for wide bandgap CBP include transition metal oxides such as MoO 3 , and WO 3 which have a large electron affinity above 6.0 eV [9]. Our recent study has confirmed the effectiveness of WO 3 doping in CBP when the doping level is greater than 10mol% [9].…”
Section: Resultsmentioning
confidence: 57%
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“…[1][2][3][4][5] A hole transport layer (HTL) is essential for the injection and transport of holes, which affects the number of holes in the region of the emission layer (EML), and correspondingly the radiative exciton recombination. [6][7][8][9] Poly(3,4-ethylenedioxythiophene):poly-(styrenesulfonate) (PEDOT:PSS) is a widely utilized HTL in PeLEDs, because the surface roughness of ITO and the injection barrier for holes can be reduced aer inserting PEDOT:PSS between ITO and perovskite EML. However, because PEDOT:PSS is metallic and the excitons in perovskite materials possess long diffusion length, the quenching of excitons oen happens at the interface between PEDOT:PSS and perovskite EML through nonradiative energy transfer and/or exciton dissociation pushed by the big discrepancy of energy levels between PEDOT:PSS and perovskite.…”
Section: Introductionmentioning
confidence: 99%