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Surface potential measurement of human hair using Kelvin probe microscopy
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10.1116/1.2715965
/content/avs/journal/jvsta/25/4/10.1116/1.2715965
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/25/4/10.1116/1.2715965
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic structure of human hair (Ref. 3). (b) Schematic of outermost surface of hair showing 18-MEA location (Ref. 6).

Image of FIG. 2.
FIG. 2.

(a) Schematic of first pass of Kelvin probe technique measuring surface height (Ref. 13). (b) Schematic of second pass of Kelvin probe technique measuring surface potential (Ref. 13). (c) Jumper configuration and resulting electrical circuit setup (courtesy of Veeco Instruments Inc., Support Note 231, Revision E). GND: ground; OSC: oscillating signal applied to tip; dc: dc bias applied to tip.

Image of FIG. 3.
FIG. 3.

AFM images showing isolated gold pads with applied across. Surface potential image and profile clearly show difference is measured by Kelvin probe method.

Image of FIG. 4.
FIG. 4.

(a) AFM images of silicon calibration grating with tip scanned perpendicular to trenches showing topography effect (trench depth is ). (b) AFM images of silicon calibration grating with tip scanned parallel to trenches showing absence of topography effect. (c) AFM images of small groove (depth of ) with tip scanned perpendicular to the groove showing less of an effect from topography.

Image of FIG. 5.
FIG. 5.

(a) AFM images of aluminum, MP tape, and PDMS. (b) Bar charts showing average surface potentials at both 50% and 10% relative humidities.

Image of FIG. 6.
FIG. 6.

(a) AFM images showing surface height and surface potential of virgin, virgin treated, chemically damaged, chemically damaged treated (one cycle), and chemically damaged treated (three cycles) hair samples. (b) Bar charts showing average surface potential change at both 50% and 10% relative humidities.

Image of FIG. 7.
FIG. 7.

(a) AFM images showing surface height and surface potential of chemically damaged treated (amino silicone) hair. (b) Bar charts showing average surface potential change at both 50% and 10% relative humidities.

Image of FIG. 8.
FIG. 8.

(a) AFM images showing surface height and surface potential of mechanically damaged hair. (b) Bar charts showing average surface potential change at both 50% and 10% relative humidities.

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/content/avs/journal/jvsta/25/4/10.1116/1.2715965
2007-07-02
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Surface potential measurement of human hair using Kelvin probe microscopy
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/25/4/10.1116/1.2715965
10.1116/1.2715965
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