Cited 23 time in webofscience Cited 13 time in scopus

In situ-prepared composite materials of PEDOT: PSS buffer layer-metal nanoparticles and their application to organic solar cells

Title
In situ-prepared composite materials of PEDOT: PSS buffer layer-metal nanoparticles and their application to organic solar cells
Authors
Woo, S[Woo, Sungho]Jeong, JH[Jeong, Jae Hoon]Lyu, HK[Lyu, Hong Kun]Han, YS[Han, Yoon Soo]Kim, Y[Kim, Youngkyoo]
DGIST Authors
Woo, S[Woo, Sungho]; Jeong, JH[Jeong, Jae Hoon]; Lyu, HK[Lyu, Hong Kun]
Issue Date
2012-11-23
Citation
Nanoscale Research Letters, 7
Type
Article
Article Type
Article
Keywords
Buffer LayersCharacteristic AbsorptionCharge CollectionChloroauric AcidConducting PolymersConversion EfficiencyEnhanced Light AbsorptionFill-FactorGoldGold CoatingsHole TransportingIn Situ PreparationIndium Tin OxideMethyl EstersOrganic Solar CellOrganic Solar CellsPEDOT:PSSPEDOT:PSS-Metal NPsPoly(3,4-Ethylenedioxythiophene) (PEDOT)Power Conversion EfficienciesSilverSilver NitratesSitu PreparationSodiumSodium BorohydridesSolar CellsSurface PlasmonsSurface RoughnessTinTin OxidesWell-Dispersed
ISSN
1931-7573
Abstract
We report an enhancement in the efficiency of organic solar cells via the incorporation of gold (Au) or silver (Ag) nanoparticles (NPs) in the hole-transporting buffer layer of poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), which was formed on an indium tin oxide (ITO) surface by the spin-coating of PEDOT:PSS-Au or Ag NPs composite solution. The composite solution was synthesized by a simple in situ preparation method which involved the reduction of chloroauric acid (HAuCl4) or silver nitrate (AgNO3) with sodium borohydride (NaBH4) solution in the presence of aqueous PEDOT:PSS media. The NPs were well dispersed in the PEDOT:PSS media and showed a characteristic absorption peak due to the surface plasmon resonance effect. Organic solar cells with the structure of ITO/PEDOT:PSS-Au, Ag NPs/poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PC61BM)/LiF/Al exhibited an 8% improvement in their power conversion efficiency mainly due to the enlarged surface roughness of the PEDOT:PSS, which lead to an improvement in the charge collection and ultimately improvements in the short-circuit current density and fill factor. © 2012 Woo et al.
URI
http://hdl.handle.net/20.500.11750/3316
DOI
10.1186/1556-276X-7-641
Publisher
Springer
Related Researcher
Files:
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Collection:
School of Undergraduate Studies1. Journal Articles
Division of IoT∙Robotics Convergence Research1. Journal Articles
Intelligent Devices and Systems Research Group1. Journal Articles


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