Use of a high electron-affinity molybdenum dithiolene complex to p-dope hole-transport layers

Yabing Qi; Tissa Sajoto; Stephen Barlow; Eung Gun Kim; Jean Luc Brédas; Seth R. Marder; Antoine Kahn

doi:10.1021/ja904939g

Use of a high electron-affinity molybdenum dithiolene complex to p-dope hole-transport layers

Yabing Qi^*, Tissa Sajoto, Stephen Barlow, Eung Gun Kim, Jean Luc Brédas, Seth R. Marder, Antoine Kahn

^*Corresponding author for this work

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

90 Scopus citations

Abstract

(Chemical Equation Presented) Experimental and theoretical results are presented on the electronic structure of molybdenum tris[1,2- bis(trifluoromethyl) ethane-1,2-dithiolene] (Mo(tfd)₃), a high electron-affinity organometallic complex that constitutes a promising candidate as a p-dopant for organic molecular semiconductors. The electron affinity of the compound, determined via inverse photoemission spectroscopy, is 5.6 eV, which is 0.4 eV larger than that of the commonly used p-dopant F₄-TCNQ. The LUMO level of Mo(tfd)₃ is calculated to be delocalized over the whole molecule, which is expected to lead to low pinning potential. Efficient p-doping of a standard hole transport material (α-NPD) is demonstrated via measurements of Fermi level shifts and enhanced conductivity in α-NPD:1% Mo(tfd)₃. Rutherford backscattering measurements show good stability of the three-dimensional Mo(tfd)₃ molecule in the host matrix with respect to diffusion.

Original language	English (US)
Pages (from-to)	12530-12531
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	131
Issue number	35
DOIs	https://doi.org/10.1021/ja904939g
State	Published - Sep 9 2009
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

Access to Document

10.1021/ja904939g

Cite this

@article{01a9268aaf384f519166de4f9a90d85c,

title = "Use of a high electron-affinity molybdenum dithiolene complex to p-dope hole-transport layers",

abstract = "(Chemical Equation Presented) Experimental and theoretical results are presented on the electronic structure of molybdenum tris[1,2- bis(trifluoromethyl) ethane-1,2-dithiolene] (Mo(tfd)3), a high electron-affinity organometallic complex that constitutes a promising candidate as a p-dopant for organic molecular semiconductors. The electron affinity of the compound, determined via inverse photoemission spectroscopy, is 5.6 eV, which is 0.4 eV larger than that of the commonly used p-dopant F4-TCNQ. The LUMO level of Mo(tfd)3 is calculated to be delocalized over the whole molecule, which is expected to lead to low pinning potential. Efficient p-doping of a standard hole transport material (α-NPD) is demonstrated via measurements of Fermi level shifts and enhanced conductivity in α-NPD:1% Mo(tfd)3. Rutherford backscattering measurements show good stability of the three-dimensional Mo(tfd)3 molecule in the host matrix with respect to diffusion.",

author = "Yabing Qi and Tissa Sajoto and Stephen Barlow and Kim, {Eung Gun} and Br{\'e}das, {Jean Luc} and Marder, {Seth R.} and Antoine Kahn",

year = "2009",

month = sep,

day = "9",

doi = "10.1021/ja904939g",

language = "English (US)",

volume = "131",

pages = "12530--12531",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "35",

}

TY - JOUR

T1 - Use of a high electron-affinity molybdenum dithiolene complex to p-dope hole-transport layers

AU - Qi, Yabing

AU - Sajoto, Tissa

AU - Barlow, Stephen

AU - Kim, Eung Gun

AU - Brédas, Jean Luc

AU - Marder, Seth R.

AU - Kahn, Antoine

PY - 2009/9/9

Y1 - 2009/9/9

N2 - (Chemical Equation Presented) Experimental and theoretical results are presented on the electronic structure of molybdenum tris[1,2- bis(trifluoromethyl) ethane-1,2-dithiolene] (Mo(tfd)3), a high electron-affinity organometallic complex that constitutes a promising candidate as a p-dopant for organic molecular semiconductors. The electron affinity of the compound, determined via inverse photoemission spectroscopy, is 5.6 eV, which is 0.4 eV larger than that of the commonly used p-dopant F4-TCNQ. The LUMO level of Mo(tfd)3 is calculated to be delocalized over the whole molecule, which is expected to lead to low pinning potential. Efficient p-doping of a standard hole transport material (α-NPD) is demonstrated via measurements of Fermi level shifts and enhanced conductivity in α-NPD:1% Mo(tfd)3. Rutherford backscattering measurements show good stability of the three-dimensional Mo(tfd)3 molecule in the host matrix with respect to diffusion.

AB - (Chemical Equation Presented) Experimental and theoretical results are presented on the electronic structure of molybdenum tris[1,2- bis(trifluoromethyl) ethane-1,2-dithiolene] (Mo(tfd)3), a high electron-affinity organometallic complex that constitutes a promising candidate as a p-dopant for organic molecular semiconductors. The electron affinity of the compound, determined via inverse photoemission spectroscopy, is 5.6 eV, which is 0.4 eV larger than that of the commonly used p-dopant F4-TCNQ. The LUMO level of Mo(tfd)3 is calculated to be delocalized over the whole molecule, which is expected to lead to low pinning potential. Efficient p-doping of a standard hole transport material (α-NPD) is demonstrated via measurements of Fermi level shifts and enhanced conductivity in α-NPD:1% Mo(tfd)3. Rutherford backscattering measurements show good stability of the three-dimensional Mo(tfd)3 molecule in the host matrix with respect to diffusion.

UR - http://www.scopus.com/inward/record.url?scp=69849104106&partnerID=8YFLogxK

U2 - 10.1021/ja904939g

DO - 10.1021/ja904939g

M3 - Article

C2 - 19678703

AN - SCOPUS:69849104106

SN - 0002-7863

VL - 131

SP - 12530

EP - 12531

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 35

ER -

Use of a high electron-affinity molybdenum dithiolene complex to p-dope hole-transport layers

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this