Scanning tunneling microscopy studies of organic and inorganic materials for photovoltaics and photoelectrochemistry

Renate Hiesgen; Dieter Meissner

doi:10.1117/12.130573

9 December 1992 Scanning tunneling microscopy studies of organic and inorganic materials for photovoltaics and photoelectrochemistry

Renate Hiesgen, Dieter Meissner

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Proceedings Volume 1729, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry; (1992) https://doi.org/10.1117/12.130573
Event: Optical Materials Technology for Energy Efficiency and Solar Energy, 1992, Toulouse-Labege, France

Abstract

Thin film solar cells require a structural control in nanometer dimensions. The only techniques currently available to investigate and control thin film preparation techniques in real space are based on scanning probe techniques as developed by Rohrer and Binning in 1981. However, the investigation of surface roughness on the ten to hundred nanometer range has proven to be especially complicated due to the convolution of tip and surface structures depending on the relative size dimensions of both the tip and the surface features. Special care is necessary to avoid multiple tip imaging as the major source of errors. Examples given in this paper include investigations of nanometer clusters of metals as used for semiconductor surface modifications in photoelectrochemical solar cells and of amorphous hydrocarbon films investigated as possible new materials for photovoltaics or as selective absorbers for solar thermal applications. More detailed investigations of molecular thin films for organic solar cells are presented. Here, besides information about the film structure, crystal growth mechanisms of organic crystalilites prepared by evaporation techniques also were investigated using scanning tunneling microscopy (STM) and scanning electron microscopy (SEM) techniques.

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Renate Hiesgen and Dieter Meissner "Scanning tunneling microscopy studies of organic and inorganic materials for photovoltaics and photoelectrochemistry", Proc. SPIE 1729, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry, (9 December 1992); https://doi.org/10.1117/12.130573

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KEYWORDS

Scanning tunneling microscopy

Crystals

Gold

Atomic force microscopy

Scanning electron microscopy

Electrodes

Carbon

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