Impact of oxygen vacancy on energy-level alignment at MoOx/organic interfaces

Zheng Zhang; Yan Xiao; Huai Xin Wei; Guo Fu Ma; Steffen Duhm; Yan Qing Li; Jian Xin Tang

doi:10.7567/APEX.6.095701

Impact of oxygen vacancy on energy-level alignment at MoOx/organic interfaces

Zheng Zhang, Yan Xiao, Huai Xin Wei, Guo Fu Ma, Steffen Duhm, Yan Qing Li, Jian Xin Tang

Soochow University

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Oxygen vacancies in MoOx play an essential role in interface energetics for charge injection and transport in organic devices. The influence of oxygen vacancy on energy-level alignment at the interface between MoO_x and organic hole-transport layers is studied via photoemission spectroscopy. The degree of oxygen vacancies in MoO_x is controlled by thermal annealing, which results in the partial reduction of Mo cations and a decrease in their work function. The hole-injection barrier at MoO_x /organic interfaces increases as a consequence of the increase in oxygen deficiency.

Original language	English
Article number	095701
Journal	Applied Physics Express
Volume	6
Issue number	9
DOIs	https://doi.org/10.7567/APEX.6.095701
State	Published - Sep 2013
Externally published	Yes

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title = "Impact of oxygen vacancy on energy-level alignment at MoOx/organic interfaces",

abstract = "Oxygen vacancies in MoOx play an essential role in interface energetics for charge injection and transport in organic devices. The influence of oxygen vacancy on energy-level alignment at the interface between MoOx and organic hole-transport layers is studied via photoemission spectroscopy. The degree of oxygen vacancies in MoOx is controlled by thermal annealing, which results in the partial reduction of Mo cations and a decrease in their work function. The hole-injection barrier at MoOx /organic interfaces increases as a consequence of the increase in oxygen deficiency.",

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AU - Zhang, Zheng

AU - Xiao, Yan

AU - Wei, Huai Xin

AU - Ma, Guo Fu

AU - Duhm, Steffen

AU - Li, Yan Qing

AU - Tang, Jian Xin

PY - 2013/9

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N2 - Oxygen vacancies in MoOx play an essential role in interface energetics for charge injection and transport in organic devices. The influence of oxygen vacancy on energy-level alignment at the interface between MoOx and organic hole-transport layers is studied via photoemission spectroscopy. The degree of oxygen vacancies in MoOx is controlled by thermal annealing, which results in the partial reduction of Mo cations and a decrease in their work function. The hole-injection barrier at MoOx /organic interfaces increases as a consequence of the increase in oxygen deficiency.

AB - Oxygen vacancies in MoOx play an essential role in interface energetics for charge injection and transport in organic devices. The influence of oxygen vacancy on energy-level alignment at the interface between MoOx and organic hole-transport layers is studied via photoemission spectroscopy. The degree of oxygen vacancies in MoOx is controlled by thermal annealing, which results in the partial reduction of Mo cations and a decrease in their work function. The hole-injection barrier at MoOx /organic interfaces increases as a consequence of the increase in oxygen deficiency.

UR - https://www.scopus.com/pages/publications/84883666917

U2 - 10.7567/APEX.6.095701

DO - 10.7567/APEX.6.095701

M3 - 文章

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SN - 1882-0778

VL - 6

JO - Applied Physics Express

JF - Applied Physics Express

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ER -

Impact of oxygen vacancy on energy-level alignment at MoOx/organic interfaces

Abstract

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