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Vapor-deposited hydrogenated and oxygen-deficient molybdenum oxide thin films for application in organic optoelectronics

Vapor-deposited hydrogenated and oxygen-deficient molybdenum oxide thin films for application in organic optoelectronics
Vapor-deposited hydrogenated and oxygen-deficient molybdenum oxide thin films for application in organic optoelectronics

Vapor-deposited molybdenum oxide films are used as low resistance anode interfacial layers in applications such as organic light emitting diodes (OLEDs) and organic photovoltaics (OPVs). A versatile method for the vapor deposition of molybdenum oxide layers is presented, which offers the control of the oxygen stoichiometry of the deposited films and their doping with hydrogen. The possibility of tuning the electronic structure of the deposited molybdenum oxides is also investigated by controlling oxygen deficiency and hydrogenation (the incorporation of hydrogen within the molybdenum oxide's lattice). To take advantage of the altered electronic properties of the non-stoichiometric Mo oxides, we embedded them as anode interfacial layers in organic optoelectronic devices. Large improvement in the operational characteristics of both electroluminescent devices and bulk heterojunction solar cells was achieved and correlated with the oxygen deficiency and the hydrogen content of the Mo oxides.

Hydrogenated, Organic optoelectronics, Oxygen deficient, Vapor-deposited molybdenum oxides
0257-8972
202-207
Vasilopoulou, Maria
aad1381e-d091-4090-8c7c-b74bed22393d
Kostis, Ioannis
681af9a6-5162-4f35-b6b1-365ea7ce7e47
Douvas, Antonios M.
2e088659-e1b3-4723-aff9-4dfe385579b5
Georgiadou, Dimitra G.
84977176-3678-4fb3-a3dd-2044a49c853b
Soultati, Anastasia
75205fde-50fc-473e-ad72-ab0b3c6b2cb9
Papadimitropoulos, Giorgos
b4f1ecba-cc8a-4882-99a5-a29354a9bca7
Stathopoulos, Nikos A.
83a4653f-c4c8-464a-8ed1-a93c52cf3833
Savaidis, Stelios S.
a1ae5de3-1411-46ff-b47e-b1c91ee0b3dd
Argitis, Panagiotis
ab9c4ea6-3dd2-4e34-935d-81bfb360f358
Davazoglou, Dimitris
a946cf5d-287a-4734-ba55-b180ab4525ed
Vasilopoulou, Maria
aad1381e-d091-4090-8c7c-b74bed22393d
Kostis, Ioannis
681af9a6-5162-4f35-b6b1-365ea7ce7e47
Douvas, Antonios M.
2e088659-e1b3-4723-aff9-4dfe385579b5
Georgiadou, Dimitra G.
84977176-3678-4fb3-a3dd-2044a49c853b
Soultati, Anastasia
75205fde-50fc-473e-ad72-ab0b3c6b2cb9
Papadimitropoulos, Giorgos
b4f1ecba-cc8a-4882-99a5-a29354a9bca7
Stathopoulos, Nikos A.
83a4653f-c4c8-464a-8ed1-a93c52cf3833
Savaidis, Stelios S.
a1ae5de3-1411-46ff-b47e-b1c91ee0b3dd
Argitis, Panagiotis
ab9c4ea6-3dd2-4e34-935d-81bfb360f358
Davazoglou, Dimitris
a946cf5d-287a-4734-ba55-b180ab4525ed

Vasilopoulou, Maria, Kostis, Ioannis, Douvas, Antonios M., Georgiadou, Dimitra G., Soultati, Anastasia, Papadimitropoulos, Giorgos, Stathopoulos, Nikos A., Savaidis, Stelios S., Argitis, Panagiotis and Davazoglou, Dimitris (2013) Vapor-deposited hydrogenated and oxygen-deficient molybdenum oxide thin films for application in organic optoelectronics. Surface and Coatings Technology, 230, 202-207. (doi:10.1016/j.surfcoat.2013.05.033).

Record type: Article

Abstract

Vapor-deposited molybdenum oxide films are used as low resistance anode interfacial layers in applications such as organic light emitting diodes (OLEDs) and organic photovoltaics (OPVs). A versatile method for the vapor deposition of molybdenum oxide layers is presented, which offers the control of the oxygen stoichiometry of the deposited films and their doping with hydrogen. The possibility of tuning the electronic structure of the deposited molybdenum oxides is also investigated by controlling oxygen deficiency and hydrogenation (the incorporation of hydrogen within the molybdenum oxide's lattice). To take advantage of the altered electronic properties of the non-stoichiometric Mo oxides, we embedded them as anode interfacial layers in organic optoelectronic devices. Large improvement in the operational characteristics of both electroluminescent devices and bulk heterojunction solar cells was achieved and correlated with the oxygen deficiency and the hydrogen content of the Mo oxides.

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More information

e-pub ahead of print date: 1 June 2013
Published date: 15 September 2013
Keywords: Hydrogenated, Organic optoelectronics, Oxygen deficient, Vapor-deposited molybdenum oxides

Identifiers

Local EPrints ID: 440517
URI: http://eprints.soton.ac.uk/id/eprint/440517
ISSN: 0257-8972
PURE UUID: 32028754-f1de-425e-887b-2f69a31347ba
ORCID for Dimitra G. Georgiadou: ORCID iD orcid.org/0000-0002-2620-3346

Catalogue record

Date deposited: 06 May 2020 16:31
Last modified: 07 Oct 2020 02:27

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Contributors

Author: Maria Vasilopoulou
Author: Ioannis Kostis
Author: Antonios M. Douvas
Author: Anastasia Soultati
Author: Giorgos Papadimitropoulos
Author: Nikos A. Stathopoulos
Author: Stelios S. Savaidis
Author: Panagiotis Argitis
Author: Dimitris Davazoglou

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