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Effects of p‐Type Nickel Oxide Semiconductor and Gold Bilayer on Highly Efficient Polymer Solar Cell
Author(s) -
Park JeongWoo,
Shin SangChul,
Shim Jae Won
Publication year - 2016
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.10923
Subject(s) - pedot:pss , materials science , non blocking i/o , photocurrent , indium tin oxide , bilayer , energy conversion efficiency , nickel oxide , doping , poly(3,4 ethylenedioxythiophene) , chemical engineering , polymer solar cell , surface plasmon resonance , tin oxide , optoelectronics , solar cell , layer (electronics) , nanotechnology , nickel , nanoparticle , chemistry , organic chemistry , biochemistry , membrane , engineering , metallurgy , catalysis
In this study, we report a new hole‐collecting interlayer ( HCI ) comprising NiO /Au/poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) ( PEDOT : PSS ) for poly(3‐hexylthiophene) ( P3HT ) and phenyl‐ C61 ‐butyric acid methyl ester ( PCBM )‐based polymer solar cells ( PSCs ). The insertion of a bilayer of NiO /Au between indium tin oxide ( ITO ) and PEDOT : PSS improves the photocurrent generation of the PSCs . The NiO layer provides an intermediate step energy level between ITO and PEDOT : PSS , leading to enhanced hole collection. The ultrathin Au induces a surface plasmon resonance effect, allowing more photons to be absorbed by the photoactive layer and improving the hole‐collecting properties by planarizing and doping the NiO . The PSCs with the NiO /Au/ PEDOT : PSS HCIs yield a power‐conversion efficiency of 3.9 ± 0.2%, which is approximately 15% higher than that of PSCs with a PEDOT : PSS ‐only HCI , under a simulated air mass 1.5 global (G) 100 mW /cm 2 illumination.