Microwave-reduced graphene oxide for efficient and stable hole extraction layers of polymer solar cells
- Authors
- Kim N.[Kim N.]; Xin G.[Xin G.]; Cho S.M.[Cho S.M.]; Pang C.[Pang C.]; Chae H.[Chae H.]
- Issue Date
- Sep-2015
- Publisher
- 한국물리학회
- Keywords
- Reduced graphene oxide; Microwave reduction; Hole extraction layer; Polymer solar cells
- Citation
- Current Applied Physics, v.15, no.9, pp.953 - 957
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Current Applied Physics
- Volume
- 15
- Number
- 9
- Start Page
- 953
- End Page
- 957
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/43162
- DOI
- 10.1016/j.cap.2015.05.011
- ISSN
- 1567-1739
- Abstract
- Microwave-assisted reduced graphene oxide (MR-GO) layer was applied to hole extraction layer (HEL) of polymer solar cells (PSCs) and was compared with the widely used poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) in bulk hetero-junction (BHJ) solar cells. The power conversion efficiency (PCE) of 3.57% was achieved with the MR-GO layer, which is 21% higher than that of PSCs with the conventional PEDOT:PSS HEL material. This enhancement of PCE is mainly attributed to the increase of short-circuit current density originated from the hydrophobic surface of the MR-GO layer. The hydrophobic graphene oxide surface is believed to improve wetting property and physical contact of active blends. In addition, the MR-GO interfacial layer is found to show the excellent device stability in atmospheric condition. The PCE of conventional PEDOT:PSS based PSCs showed total degradation when the device was exposed to atmospheric condition for 1000 h without any encapsulation, while that of MR-GO based PSC showed over 85% of PCE. © 2015 Published by Elsevier B.V.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Engineering > School of Chemical Engineering > 1. Journal Articles
- Engineering > Chemical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.