Effects of ZnO Nanoparticles on P3HT:PCBM Organic Solar Cells with DMF-Modulated PEDOT:PSS Buffer Layers

Oh, Sang Hoon; Heo, Seon-Hee; Yang, Jeong Suk; Kim, Hyun Jae

doi:10.1021/am4046475

Cited by 73 publications

(41 citation statements)

References 24 publications

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“…As revealed above, the roughness improved with an increasing amounts of nanoparticles in the active layer. High rough surface might lead to increase absorption due to increased light reflecting in the active layer [3,21]. The incorporation of CuO to the P3HT:PCBM polymer blend also observed to increase the P3HT crystallinity gradually as supported by XRD results (Fig.…”

Section: Resultsmentioning

confidence: 80%

Efficient inverted hybrid solar cells using both CuO and P3HT as an electron donor materials

Ikram

Imran

Nunzi

et al. 2015

J Mater Sci: Mater Electron

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Copper oxide (CuO) nanoparticles (\50 nm) were incorporated in the P3HT-poly(3-hexylthiophene): PCBM-[6,6]-phenyl-C61-butyric acid methyl ester bulk heterojunction organic solar cells. The ratio of P3HT to CuO in the blend was varied, while maintaining the fixed ratio of PCBM. The addition of CuO nanoparticles was found to significantly improve the power conversion efficiency in the P3HT:PCBM solar cells under AM 1.5 G and 100 mW/cm 2 irradiation. The mixing of CuO in the active layer widens the light absorption range and introduced a red shift in the absorption spectra. The CuO-conjugated active layer increased the surface roughness. The CuO nanoparticles agglomerated in the blend as their concentration relative to P3HT increased in the active layer.

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Section: Resultsmentioning

confidence: 80%

Efficient inverted hybrid solar cells using both CuO and P3HT as an electron donor materials

Ikram

Imran

Nunzi

et al. 2015

J Mater Sci: Mater Electron

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“…We also tried to discover whether there might be a characteristic length of the side chains at which the electronic properties would remain unchanged; this might be suitable for use as a modeling approach. We chose to study poly(3-hexylthiophene) (P3HT), a polymer widely used in organic devices (Figure 1) [8][9][10][20][21][22][23][24] . This polymer has a hexyl side chain in each monomer unit.…”

Section: Introductionmentioning

confidence: 99%

Effect of the length of alkyl side chains in the electronic structure of conjugated polymers

Oliveira

Lavarda

2014

Mat. Res.

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Computational modeling studies of conjugated polymers have been shown to present many challenges. Dne such challenge is to find ways to reduce the computational cost for these studies without compromising the quality of the results. An approach longly used in the literature for this purpose is replacing long alkyl side chains (with six or more carbons) with a methyl group. This work reports on a theoretical study conducted with the conjugated polymer poly(3-hexylthiophene), which contains a hexyl side chain attached to the monomer, to verify the influence of the size of the alkyl side chain on its electronic structure. The results indicated that, for polymers containing long alkyl side chains, replacement with a propyl group offered full saturation of all properties under review, showing it to be a good approach.

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“…This necessitates that the interfaces between the active layer and the transparent conducting layer, and the metal contact, respectively, need to be stable against degradation. Research involving the blending of ZnO nanoparticles with P3HT through spin‐casting from chloroform solution to form hybrid structures, yielded an efficiency of about 0.59% , while a high efficiency of 3.39% in devices using ZnO nanoparticles with a modified anode material was attained . An interesting approach is to blend ZnO with the polymer: fullerene binary system to form a ternary system.…”

Section: Introductionmentioning

confidence: 99%

Effect of additional electron acceptor in hybrid P3HT:PCBM:ZnO spin‐coated films for photovoltaic application

Muller

Ramashia

Motaung

et al. 2016

Physica Status Solidi (a)

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Concerted efforts need to be undertaken to overcome limited efficiencies and instability issues in order to ensure a niche for organic photovoltaics (OPVs) in the PV market. Recent improvements on tandem structures aside, in order to achieve further improvements it is sensible to construct test-case scenarios on bulk heterojunction cells. One aspect, involving the low mobility of charge carriers, caused by the short exciton diffusion length in the active layer, has been targeted. In this regard, attempts to incorporate inorganic semiconductors into organic blends in hybrid organic solar cells, in various configurations, have so far been promising. In this work, ZnO nanoparticles were mixed into the poly (3-hexylthiophene) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blend, and used as additional acceptors of electrons in the active layer. Metal-oxide interface layers between the active layer and ITO and the top contact layer, respectively, were introduced in the solar cell to compensate for environmental degradation. Thermo-gravimetric analyses of the active layers revealed improved thermal stability of P3HT upon incorporating ZnO in the polymer matrix. The photovoltaic properties demonstrated that the addition of ZnO nanoparticles in the P3HT:PCBM bulk-heterojunction solar cell causes an increase in the power conversion efficiency, while excessive loading of ZnO decreases the efficiency.

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Effects of ZnO Nanoparticles on P3HT:PCBM Organic Solar Cells with DMF-Modulated PEDOT:PSS Buffer Layers

Cited by 73 publications

References 24 publications

Efficient inverted hybrid solar cells using both CuO and P3HT as an electron donor materials

Efficient inverted hybrid solar cells using both CuO and P3HT as an electron donor materials

Effect of the length of alkyl side chains in the electronic structure of conjugated polymers

Effect of additional electron acceptor in hybrid P3HT:PCBM:ZnO spin‐coated films for photovoltaic application

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