Transmittance Map of Glass Plate Coated with TCO Film Measured with SolidSpec-3700 Equipped with Automatic X-Y Stage

Introduction

A solar cell is composed of various parts, including p- type and n-type semiconductors, anti-reflective film, TCO (transparent conductive oxide) film, and glass plate, etc. Previously, in Application News A409, we introduced an example of measurement of absolute reflectance of anti-reflective film. Here, we report on the transmittance measurement of a glass plate coated with TCO film. TCO films are transparent as well as electrically conductive, and examination of the transmittance distribution is important for evaluating both the TCO film and glass substrate. Here we introduce the measurement of the transmittance distribution (map) in glass plate coated with TCO film using the SolidSpec-3700 UV-VIS-NIR spectrophotometer.

April 21, 2010 GMT