Failure diagnosis of organic photovoltaic using electro-optic probe

Abstract

This paper describes the measurement of an organic photovoltaic using an electro-optic probe. We verify the validity of the electro-optic probe by comparing it with a conventional electric probe. The electric field distribution of the organic photovoltaic is examined on the basis of results of the test board measurement using the electro-optic probe and results of the test board simulation using an electromagnetic field simulator. We succeed in failure diagnosis of the organic photovoltaic in three failure modes. We found that the organic photovoltaic has a failure cell, and the electro-optic probe is successfully applied to failure diagnosis of organic photovoltaic.

Electric field measurement of organic photovoltaic cell model using electrooptic probe

“…It is necessary to measure the electric field of the OPV cell to obtain a failure diagnosis. 11) An EO probe can measure the electric field precisely without physical contact with the OPV. The EO probe measures the electric field from not only the target cell but also from other cells because it is a noncontact type probe.…”

“…An electrooptic (EO) probe can measure electric field 6,7) without the need for physical contact with the device being tested. [8][9][10] We previously reported on the failure diagnosis of an OPV using an older type of EO probe, 11) which is usually used for measuring a gigahertz-band printed circuit board and intrabody communication. [12][13][14][15][16][17][18][19] However, the sensitivity of the older omit EO probe is not sufficient for measuring the OPV within a 10 mm distance from the probe head to the OPV.…”

Mapping of inhomogeneous quasi-3D electrostatic field in electro-optic materials

“…One of the common applications of past experiments has been the determination of the internal electric field in detectors and other electronic devices. Point electro-optic 1D electric field probes have been developed and demonstrated for scanning the quality of organic photovoltaics films 5 . We also highlight R&D investigations on real-time sensors of radiofrequency fields during magnetic resonance imaging 6 and, especially, a point pigtailed vectorial sensor of intense electric fields 7 , which has become commercially available.…”