Functionalized graphene nanoplatelets as a barrier enhancing filler in organic photovoltaic encapsulant

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Yuwawech, Kitti; Wootthikanokkhan, Jatuphorn; Tanpichai, Supachok;

ผู้เผยแพร่: Wiley

ปีที่เผยแพร่ (ค.ศ.): 2020

ชื่อย่อของวารสาร: JAPS

Volume number: 138

Issue number: 18

นอก: 0021-8995

eISSN: 1097-4628

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097245269&doi=10.1002%2fapp.50351&partnerID=40&md5=3788c324687e30711b4198a4a470ea09

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

This research work has concerned the development of polymer films, reinforced with graphene nanoplatelets (GNP) for use as encapsulating films for organic photovoltaic (OPV) cells. The aim of this work was to investigate the effects of concentrations and orientations of GNP on mechanical, optical, and barrier properties of polymer composite films. In this regard, the neat GNP was modified with Fe3O4 prior to mixing with acrylate-based monomers. The mixture was then cured by photo-polymerization with and without the application of magnetic fields. Changes in orientation of the functionalized GNP with the direction of applied magnetic fields were analyzed by optical microscopy, scanning electron microscopy, and transmission electron microscopy. From the results, it was found that by inducing the orientation of functionalized GNP to the horizontal direction (with respect to the OPV cell), the great enhancement in tensile and barrier properties of the polymer composite films was achieved. This led to the longer performance of the OPV cell encapsulated with the nanocomposite film with 0.1 phr of the horizontally oriented GNP in comparison with the OPV cell encapsulated with the film reinforced with randomly oriented GNP at the same content. © 2020 Wiley Periodicals LLC

คำสำคัญ

magnetism and magnetic properties, nanocrystals, optical and photovoltaic applications, structure-property relationships