Cited 25 time in webofscience Cited 15 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:
There are no files associated with this item.
Collection:
Convergence Research Center for Solar Energy1. Journal Articles
Intelligent Devices and Systems Research Group1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE