Surface Potential Measurement of Oligothiophene Ultrathin Films by Kelvin Probe Force Microscopy
- 1 June 2001
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 40 (6S) , 4381
- https://doi.org/10.1143/jjap.40.4381
Abstract
Surface structures and local surface potential of oligothiophene single molecular films deposited on metal substrates were investigated by Kelvin probe force microscopy using the frequency modulation detection method. Two-dimensional growth of the dimethylquinquethiophene (DM5T) films with the molecular axes perpendicular to the metal substrates was observed. Furthermore, the obtained surface potential of the DM5T film was 170 mV higher than that of Pt substrate and 200 mV lower than that of Ta substrate.Keywords
This publication has 14 references indexed in Scilit:
- Measuring minority-carrier diffusion length using a Kelvin probe force microscopePhysical Review B, 2000
- Study of mixed Langmuir–Blodgett films of hydrocarbon and fluorocarbon amphiphilic compounds by scanning surface potential microscopy and friction force microscopyApplied Surface Science, 2000
- Kelvin Probe Force Microscopy on Surfaces: Investigation of the Surface Potential of Self-Assembled Monolayers on GoldLangmuir, 1999
- Interfacial electronic structure of long-chain alkane/metal systems studied by UV-photoelectron and metastable atom electron spectroscopiesChemical Physics Letters, 1998
- Kelvin probe force microscopy for characterization of semiconductor devices and processesJournal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1996
- Delocalization length, electronic properties and vibrational spectra of neutral α,α′ -dimethyl end-capped oligothiophenesSynthetic Metals, 1996
- Charge transport in thin films of semiconducting oligothiophenesPhysical Review B, 1995
- Organic Transistors: Two-Dimensional Transport and Improved Electrical CharacteristicsScience, 1995
- All-Polymer Field-Effect Transistor Realized by Printing TechniquesScience, 1994
- Conjugated polymer electroluminescenceSynthetic Metals, 1993