Degradation of bisphenol-a-polycarbonate (BPA-PC) optical lenses under simulated harsh environment conditions

Conference paper (2019)

Authors

M. Yazdan Mehr Electronic Components, Technology and Materials - EEMCS
Willem Dirk Driel Electronic Components, Technology and Materials - EEMCS
G.Q. Zhng Electronic Components, Technology and Materials - EEMCS
Research Group
Electronic Components, Technology and Materials (EEMCS) (TU Delft)
Copyright: © 2019 M. Yazdan Mehr, W.D. van Driel, Kouchi Zhang
DOI: https://doi.org/10.1109/EuroSimE.2019.8724524
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Published Date

2019

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronic Components, Technology and Materials

Abstract

This paper investigates degradation and failure mechanisms of BPA-PC lenses in simulated harsh environment conditions. Exposure of secondary optics in Light Emitting Diode LED-based systems or any other similar applications to environmental stresses can adversely effect the performance and lifetime of products. This paper simulates a harsh environment condition, using a salt bath oven. Salt spray exposure/ageing tests at 45° C were carried out up to four months. Fourier transform infrared-attenuated total reflection FTIR-ATR spectrometer and Lambda 950 Ultraviolet-Visible (UV-VIS) spectrophotometer were used to study the optical and chemical characteristics of aged plates. Results showed that salt bath exposure test resulted in the severe deterioration of optical characteristics BPA-PC samples. Degradation of optical properties of BPA-PC plates is attributable to the oxidation of samples.

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