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Organic bulk heterojunction photovoltaic devices with surfactant-free Au nanoparticles embedded in the active layer
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10.1063/1.4720510
/content/aip/journal/apl/100/21/10.1063/1.4720510
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/21/10.1063/1.4720510

Figures

Image of FIG. 1.
FIG. 1.

(a) Absorption spectrum of the Au NPs in ethanol with the peak at ∼530 nm. Inset is the corresponding TEM image. (b) Size distribution of the fabricated nanoparticles.

Image of FIG. 2.
FIG. 2.

a) Absorption spectra of the BHJ devices with Au NPs embedded in the active layer in various concentrations (the absorbance is baseline corrected with the PEDOT:PSS/ITO/glass substrate as a reference). (b) Absorption enhancement factor of the devices with different concentration of Au NPs. (Relative ratios of the absorption spectra of NPs-embedded devices to that of the pristine one). The calculated extinction spectrum of the Au NPs embedded in the P3HT:PCBM medium is plotted for comparison. The dielectric constants of P3HT:PCBM were obtained from Ref. 33. (c) Normalized PL spectra of P3HT:PCBM for different Au NP concentrations in P3HT:PCBM.

Image of FIG. 3.
FIG. 3.

a) J-V characteristics of the OPV devices with Au NPs embedded in the active layer. (b) Corresponding IPCE curves of these OPV devices. (c) Comparison between the curve of the increase in IPCE (ΔIPCE) after incorporating Au NPs and the calculated extinction spectrum of the Au NPs in the P3HT:PCBM medium.

Tables

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Table I.

Photovoltaic characteristics of OPVs with various concentrations of Au NPs solutions into the photoactive P3HT: PCBM layer.

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/content/aip/journal/apl/100/21/10.1063/1.4720510
2012-05-23
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Organic bulk heterojunction photovoltaic devices with surfactant-free Au nanoparticles embedded in the active layer
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/21/10.1063/1.4720510
10.1063/1.4720510
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