期刊
CHEMISTRY OF MATERIALS
卷 28, 期 8, 页码 2677-2684出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.6b00165
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资金
- National Science Foundation [DMR-1506097]
- Office of Naval Research [N00014-14-1-0126]
- National Science Foundation
- National Institutes of Health/National Institute of General Medical Sciences under NSF [DMR-0936384, DMR-1332208]
- DoD, Air Force Office of Scientific Research
- National Defense Science and Engineering Graduate (NDSEG) Fellowship Program [32 CFR 168a]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1506097] Funding Source: National Science Foundation
We investigate the distribution of valence and tail states in copper phthalocyanine (CuPc) upon the introduction of minute amounts of the p-dopant molybdenum tris[1,2-bis(trifluoromethyl)ethane-1,2-dithiolene] (Mo(tfd)(3)), using a combination of electron spectroscopy and carrier transport measurements. Density of gap states, conductivity, and hole-hopping activation energy are measured. We observe the progressive filling (and deactivation) of the deepest tail states by charges introduced by the dopants, as well as significant broadening of the CuPc density of states. Simulations relate this broadening to the electrostatic and structural disorder induced by the dopant in the CuPc matrix.
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