Modification of the organic/La                         0.7                         Sr                         0.3                         MnO                         3                          interface by in situ gas treatment

X. Z. Wang; X. M. Ding; Z. S. Li; Y. Q. Zhan; I. Bergenti; V. A. Dediu; C. Taliani; Z. T. Xie; B. F. Ding; X. Y. Hou; W. H. Zhang; F. Q. Xu

doi:10.1016/j.apsusc.2007.05.035

Modification of the organic/La _0.7 Sr _0.3 MnO ₃ interface by in situ gas treatment

X. Z. Wang, X. M. Ding^*, Z. S. Li, Y. Q. Zhan, I. Bergenti, V. A. Dediu, C. Taliani, Z. T. Xie, B. F. Ding, X. Y. Hou, W. H. Zhang, F. Q. Xu

^*Corresponding author for this work

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

9 Scopus citations

Abstract

La _0.7 Sr _0.3 MnO ₃ (LSMO) can act as a spin injection electrode in organic spin-valves and organic light-emitting devices. For the latter application, good control of the electronic structure of the organic/LSMO interface is a key issue to ensure sufficient current injection in the device. By exposing cleaned LSMO surfaces to activated oxygen and hydrogen, the work function of the samples can reach 5.15 and 4.3 eV, respectively, as shown by in situ photoemission measurements. The initial stage of formation of the organic/LSMO interface upon deposition of N,N′-bis-(1-naphyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) onto the oxygen-treated LSMO surface is examined. We find that the NPB molecules evenly cover the LSMO surface and that the interface barrier height is 0.8 eV, which is comparable to that at the NPB/indium tin oxide (ITO) interface with the ITO surface pretreated in situ by oxygen plasma.

Original language	English
Pages (from-to)	9081-9084
Number of pages	4
Journal	Applied Surface Science
Volume	253
Issue number	23
DOIs	https://doi.org/10.1016/j.apsusc.2007.05.035
State	Published - 30 Sep 2007
Externally published	Yes

Keywords

Organic/magnetic interface
Spin injection
Surface treatment
Synchrotron radiation

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10.1016/j.apsusc.2007.05.035

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Wang, X. Z., Ding, X. M., Li, Z. S., Zhan, Y. Q., Bergenti, I., Dediu, V. A., Taliani, C., Xie, Z. T., Ding, B. F., Hou, X. Y., Zhang, W. H., & Xu, F. Q. (2007). Modification of the organic/La _0.7 Sr _0.3 MnO ₃ interface by in situ gas treatment Applied Surface Science, 253(23), 9081-9084. https://doi.org/10.1016/j.apsusc.2007.05.035

Wang, X. Z. ; Ding, X. M. ; Li, Z. S. et al. / Modification of the organic/La _0.7 Sr _0.3 MnO ₃ interface by in situ gas treatment In: Applied Surface Science. 2007 ; Vol. 253, No. 23. pp. 9081-9084.

@article{1827351fbe024235a14535913a1474e3,

title = " Modification of the organic/La 0.7 Sr 0.3 MnO 3 interface by in situ gas treatment ",

abstract = " La 0.7 Sr 0.3 MnO 3 (LSMO) can act as a spin injection electrode in organic spin-valves and organic light-emitting devices. For the latter application, good control of the electronic structure of the organic/LSMO interface is a key issue to ensure sufficient current injection in the device. By exposing cleaned LSMO surfaces to activated oxygen and hydrogen, the work function of the samples can reach 5.15 and 4.3 eV, respectively, as shown by in situ photoemission measurements. The initial stage of formation of the organic/LSMO interface upon deposition of N,N′-bis-(1-naphyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) onto the oxygen-treated LSMO surface is examined. We find that the NPB molecules evenly cover the LSMO surface and that the interface barrier height is 0.8 eV, which is comparable to that at the NPB/indium tin oxide (ITO) interface with the ITO surface pretreated in situ by oxygen plasma.",

keywords = "Organic/magnetic interface, Spin injection, Surface treatment, Synchrotron radiation",

author = "Wang, {X. Z.} and Ding, {X. M.} and Li, {Z. S.} and Zhan, {Y. Q.} and I. Bergenti and Dediu, {V. A.} and C. Taliani and Xie, {Z. T.} and Ding, {B. F.} and Hou, {X. Y.} and Zhang, {W. H.} and Xu, {F. Q.}",

note = "Funding Information: This work is supported by the National Natural Science Foundation of China. The ICTP-Elettra Users Programme provides partial support for the work done at Elettra. The authors thank Dr. S. Lizzit for technical assistance at the SuperESCA beamline. XZW thanks Student Innovation Foundation of NSRL for supporting his travels to NSRL.",

year = "2007",

month = sep,

day = "30",

doi = "10.1016/j.apsusc.2007.05.035",

language = "英语",

volume = "253",

pages = "9081--9084",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier",

number = "23",

}

Wang, XZ, Ding, XM, Li, ZS, Zhan, YQ, Bergenti, I, Dediu, VA, Taliani, C, Xie, ZT, Ding, BF, Hou, XY, Zhang, WH & Xu, FQ 2007, ' Modification of the organic/La _0.7 Sr _0.3 MnO ₃ interface by in situ gas treatment ', Applied Surface Science, vol. 253, no. 23, pp. 9081-9084. https://doi.org/10.1016/j.apsusc.2007.05.035

Modification of the organic/La _0.7 Sr _0.3 MnO ₃ interface by in situ gas treatment . / Wang, X. Z.; Ding, X. M.; Li, Z. S. et al.
In: Applied Surface Science, Vol. 253, No. 23, 30.09.2007, p. 9081-9084.

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

TY - JOUR

T1 - Modification of the organic/La 0.7 Sr 0.3 MnO 3 interface by in situ gas treatment

AU - Wang, X. Z.

AU - Ding, X. M.

AU - Li, Z. S.

AU - Zhan, Y. Q.

AU - Bergenti, I.

AU - Dediu, V. A.

AU - Taliani, C.

AU - Xie, Z. T.

AU - Ding, B. F.

AU - Hou, X. Y.

AU - Zhang, W. H.

AU - Xu, F. Q.

N1 - Funding Information: This work is supported by the National Natural Science Foundation of China. The ICTP-Elettra Users Programme provides partial support for the work done at Elettra. The authors thank Dr. S. Lizzit for technical assistance at the SuperESCA beamline. XZW thanks Student Innovation Foundation of NSRL for supporting his travels to NSRL.

PY - 2007/9/30

Y1 - 2007/9/30

N2 - La 0.7 Sr 0.3 MnO 3 (LSMO) can act as a spin injection electrode in organic spin-valves and organic light-emitting devices. For the latter application, good control of the electronic structure of the organic/LSMO interface is a key issue to ensure sufficient current injection in the device. By exposing cleaned LSMO surfaces to activated oxygen and hydrogen, the work function of the samples can reach 5.15 and 4.3 eV, respectively, as shown by in situ photoemission measurements. The initial stage of formation of the organic/LSMO interface upon deposition of N,N′-bis-(1-naphyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) onto the oxygen-treated LSMO surface is examined. We find that the NPB molecules evenly cover the LSMO surface and that the interface barrier height is 0.8 eV, which is comparable to that at the NPB/indium tin oxide (ITO) interface with the ITO surface pretreated in situ by oxygen plasma.

AB - La 0.7 Sr 0.3 MnO 3 (LSMO) can act as a spin injection electrode in organic spin-valves and organic light-emitting devices. For the latter application, good control of the electronic structure of the organic/LSMO interface is a key issue to ensure sufficient current injection in the device. By exposing cleaned LSMO surfaces to activated oxygen and hydrogen, the work function of the samples can reach 5.15 and 4.3 eV, respectively, as shown by in situ photoemission measurements. The initial stage of formation of the organic/LSMO interface upon deposition of N,N′-bis-(1-naphyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) onto the oxygen-treated LSMO surface is examined. We find that the NPB molecules evenly cover the LSMO surface and that the interface barrier height is 0.8 eV, which is comparable to that at the NPB/indium tin oxide (ITO) interface with the ITO surface pretreated in situ by oxygen plasma.

KW - Organic/magnetic interface

KW - Spin injection

KW - Surface treatment

KW - Synchrotron radiation

UR - http://www.scopus.com/inward/record.url?scp=34548287042&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2007.05.035

DO - 10.1016/j.apsusc.2007.05.035

M3 - 文章

AN - SCOPUS:34548287042

SN - 0169-4332

VL - 253

SP - 9081

EP - 9084

JO - Applied Surface Science

JF - Applied Surface Science

IS - 23

ER -

Wang XZ, Ding XM, Li ZS, Zhan YQ, Bergenti I, Dediu VA et al. Modification of the organic/La _0.7 Sr _0.3 MnO ₃ interface by in situ gas treatment Applied Surface Science. 2007 Sep 30;253(23):9081-9084. doi: 10.1016/j.apsusc.2007.05.035

Modification of the organic/La _0.7 Sr _0.3 MnO ₃ interface by in situ gas treatment

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Keywords

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