Active Polyethylene terephthalate (PET) films were produced with a lab scale extruder in order to strengthen the protection of photovoltaic (PV) devices from the atmospheric degradation agents, like oxygen, and thus extending their lifetime. The obtained polymer samples were characterized in terms of optical, barrier, and thermal properties and compared to standard reference PET films without active phase. The oxygen absorption measurements showed that the active barrier films were activated by liquid H2O, with a scavenging capacity of 6.97 mg O2/g film sample, remaining active for more than 100 hours. The optical properties, investigated in the UV-Visible range, revealed that the % transmittance (%T) of the active PET was quite high (85%) and close to that of the standard PET (ca. 90%), thus suitable for PV application.
Water-activated Transparent Polymer Systems for the Encapsulation of Photovoltaic Devices
ROSSI, GABRIELLA;SCARFATO, Paola;INCARNATO, Loredana
2014
Abstract
Active Polyethylene terephthalate (PET) films were produced with a lab scale extruder in order to strengthen the protection of photovoltaic (PV) devices from the atmospheric degradation agents, like oxygen, and thus extending their lifetime. The obtained polymer samples were characterized in terms of optical, barrier, and thermal properties and compared to standard reference PET films without active phase. The oxygen absorption measurements showed that the active barrier films were activated by liquid H2O, with a scavenging capacity of 6.97 mg O2/g film sample, remaining active for more than 100 hours. The optical properties, investigated in the UV-Visible range, revealed that the % transmittance (%T) of the active PET was quite high (85%) and close to that of the standard PET (ca. 90%), thus suitable for PV application.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
