Hybrid materials of upcycled Mn3O4 and reduced graphene oxide for a buffer layer in organic solar cells

Title
Hybrid materials of upcycled Mn3O4 and reduced graphene oxide for a buffer layer in organic solar cells
Authors
이성호여준석이철호강길성노용진박새미이도창나석인조한익
Keywords
Mn3O4; organic solar cell; graphene oxide
Issue Date
2018-05
Publisher
Journal of industrial and engineering chemistry
Citation
VOL 61-111
Abstract
Mn3O4 on reduced graphene oxide (r-GO) was easily synthesized by upcycling process of wasting manganese ions which were generated during oxidation reaction from graphite to GO. The yellow-brown GO suspension under acid media before neutralization immediately became black precipitates when the suspension was titrated into the concentrated NaOH solution. The method could convert the wasting manganese ions up to ∼91 wt% to Mn3O4 to optimize work function in a hole transport layer (HTL) for organic solar cells. The hybrid materials exhibited an ideal electronic structure suitable for HTL, leading to the excellent power conversion efficiency of ∼3.23%.
URI
http://pubs.kist.re.kr/handle/201004/67426
ISSN
1226-086X
Appears in Collections:
KIST Publication > Article
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