[P] P202~P216 Mechanical Properties of Materials

[P216] Evaluation of Young’s Modulus and Internal Friction of Solar Cell Materials by the Free–Free Flexural Vibration Method

○Tomoya Matsuoka¹, naoki ide¹, youichi nishino (1. Nagoya Institute of Technology)

Keywords:

flexible solar cell materials,Young's modulus,internal friction

Young’s modulus and internal friction of solar cell materials were evaluated using the free–free flexural vibration method. The Young’s modulus of the backsheet was about 4 GPa and was independent of vibration frequency and mode. Internal friction showed no strain-amplitude dependence but varied with vibration mode.