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Proceedings Paper

A planar integrated photometer/refractometer using an organic light emitting diode light source and an organic photovoltaic detector
Author(s): Alex Veneman; Brian Zacher; Dan Huebner; Adam Simmonds; Neal R. Armstrong
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Paper Abstract

A simple refractometer/photometer is described which uses a vacuum-deposited multilayer organic light emitting diode (OLED) light source and a vacuum-deposited planar heterojunction organic photovoltaic (OPV) detector, separated from each other on a thin glass attenuated total reflectance (ATR) element by 1-2 cm. A portion of the light output from the OLED light source is internally reflected in the ATR element, and the evanescent field from this internally reflected light interacts with solutions of variable refractive index in the region between the OLED and OPV. We document here the simple construction principles for devices of this type, and the characterization of the operation of this first-generation device in terms of i) photocurrent in the OPV detector versus light output from the OLED and ii) the response of the device to solutions of differing refractive index. In these first-generation devices we estimate a sensitivity to changes in refractive index of +/- of 10-3 units.

Paper Details

Date Published: 25 August 2008
PDF: 9 pages
Proc. SPIE 7054, Organic Field-Effect Transistors VII and Organic Semiconductors in Sensors and Bioelectronics, 70541E (25 August 2008); doi: 10.1117/12.796013
Show Author Affiliations
Alex Veneman, Univ. of Arizona (United States)
Brian Zacher, Univ. of Arizona (United States)
Dan Huebner, Univ. of Arizona (United States)
Adam Simmonds, Univ. of Arizona (United States)
Neal R. Armstrong, Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 7054:
Organic Field-Effect Transistors VII and Organic Semiconductors in Sensors and Bioelectronics
Zhenan Bao; Iain McCulloch; Ruth Shinar, Editor(s)

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