<P><B>Abstract</B></P> <P>Low temperature processed Perovskite solar cells (PSCs) are popular due to their potential for scalable production. In this work, we report reduced Graphene Oxide (r-GO)/copper (I) thiocyanate (...
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https://www.riss.kr/link?id=A107519034
2018
-
SCI,SCIE,SCOPUS
학술저널
652-657(6쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P> <P>Low temperature processed Perovskite solar cells (PSCs) are popular due to their potential for scalable production. In this work, we report reduced Graphene Oxide (r-GO)/copper (I) thiocyanate (...
<P><B>Abstract</B></P> <P>Low temperature processed Perovskite solar cells (PSCs) are popular due to their potential for scalable production. In this work, we report reduced Graphene Oxide (r-GO)/copper (I) thiocyanate (CuSCN) as an efficient bilayer hole transport layer (HTL) for low temperature processed inverted planar PSCs. We have systematically optimized the thickness of CuSCN interlayer at the r-GO/MAPbI<SUB>3</SUB> interface resulting in bilayer HTL structure to enhance the stability and photovoltaic performance of low temperature processed r-GO HTL based PSCs with a standard surface area of 1.02 cm<SUP>2</SUP>. With matched valence band energy level, the r-GO/CuSCN bilayer HTL based PSCs showed high power conversion efficiency of 14.28%, thanks to the improved open circuit voltage (V<SUB>OC</SUB>) compared to the only r-GO based PSC. Moreover, enhanced stability has been observed for the r-GO/CuSCN based PSCs which retained over 90% of its initial efficiency after 100 h light soaking measured under continuous AM 1.5 sun illumination.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Novel r-GO/CuSCN bilayer HTL was fabricated for inverted planar perovskite solar cells (PSCs). </LI> <LI> The r-GO/CuSCN bilayer HTL based PSC showed power conversion efficiency up to 14.28%. </LI> <LI> The r-GO/CuSCN bilayer HTL based PSC showed stable photovoltaic performance for 100 h. </LI> </UL> </P>