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Transparent Conductive Nanofiber Paper for Foldable Solar Cells.

Nogi M, Karakawa M, Komoda N, Yagyu H, Nge TT - Sci Rep (2015)

Bottom Line: The nanofiber paper enhanced high conductivity without any post treatments such as heating or mechanical pressing, when cellulose nanofiber dispersions were dropped on a silver nanowire thin layer.The transparent conductive nanofiber paper showed high electrical durability in repeated folding tests, due to dual advantages of the hydrophilic affinity between cellulose and silver nanowires, and the entanglement between cellulose nanofibers and silver nanowires.Therefore, using this conductive transparent paper, organic solar cells were produced that achieved a power conversion of 3.2%, which was as high as that of ITO-based solar cells.

View Article: PubMed Central - PubMed

Affiliation: The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.

ABSTRACT
Optically transparent nanofiber paper containing silver nanowires showed high electrical conductivity and maintained the high transparency, and low weight of the original transparent nanofiber paper. We demonstrated some procedures of optically transparent and electrically conductive cellulose nanofiber paper for lightweight and portable electronic devices. The nanofiber paper enhanced high conductivity without any post treatments such as heating or mechanical pressing, when cellulose nanofiber dispersions were dropped on a silver nanowire thin layer. The transparent conductive nanofiber paper showed high electrical durability in repeated folding tests, due to dual advantages of the hydrophilic affinity between cellulose and silver nanowires, and the entanglement between cellulose nanofibers and silver nanowires. Their optical transparency and electrical conductivity were as high as those of ITO glass. Therefore, using this conductive transparent paper, organic solar cells were produced that achieved a power conversion of 3.2%, which was as high as that of ITO-based solar cells.

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Related in: MedlinePlus

(a) Operation of light-emitting diodes using foldable transparent and conductive silver nanowire patterns on transparent nanofiber paper (left: before folding, center: under folding, right: after recovery to the original shape). (b) Current–voltage characteristics of the organic solar cells (P3HT/PCBM) in the dark (broken lines), and under 100 mW/cm2 of AM 1.5 G illumination (solid lines); Red plot: transparent conductive nanofiber paper-based solar cells; black plot: indium tin oxide glass-based solar cells. (c) Portable paper solar cells based on foldable and lightweight transparent conductive nanofiber paper.
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f3: (a) Operation of light-emitting diodes using foldable transparent and conductive silver nanowire patterns on transparent nanofiber paper (left: before folding, center: under folding, right: after recovery to the original shape). (b) Current–voltage characteristics of the organic solar cells (P3HT/PCBM) in the dark (broken lines), and under 100 mW/cm2 of AM 1.5 G illumination (solid lines); Red plot: transparent conductive nanofiber paper-based solar cells; black plot: indium tin oxide glass-based solar cells. (c) Portable paper solar cells based on foldable and lightweight transparent conductive nanofiber paper.

Mentions: This procedure produced not only high electrical durability, but also transparent conductive patterns. When the silver nanowire inks were printed on a drying plate, and then the peeling off of the nanofiber paper (Fig. 1d), transparent and conductive patterns were fabricated on the nanofiber paper without the use of any etching processes. The transparent silver nanowire patterns on the nanofiber paper could be used to illuminate LED lights, as a result of their high electrical conductivity (Fig. 3a). The LED lights could still be illuminated under folding, and after recovery to the original flat form, because of the high foldability of the devices (Fig. 3a).


Transparent Conductive Nanofiber Paper for Foldable Solar Cells.

Nogi M, Karakawa M, Komoda N, Yagyu H, Nge TT - Sci Rep (2015)

(a) Operation of light-emitting diodes using foldable transparent and conductive silver nanowire patterns on transparent nanofiber paper (left: before folding, center: under folding, right: after recovery to the original shape). (b) Current–voltage characteristics of the organic solar cells (P3HT/PCBM) in the dark (broken lines), and under 100 mW/cm2 of AM 1.5 G illumination (solid lines); Red plot: transparent conductive nanofiber paper-based solar cells; black plot: indium tin oxide glass-based solar cells. (c) Portable paper solar cells based on foldable and lightweight transparent conductive nanofiber paper.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4660464&req=5

f3: (a) Operation of light-emitting diodes using foldable transparent and conductive silver nanowire patterns on transparent nanofiber paper (left: before folding, center: under folding, right: after recovery to the original shape). (b) Current–voltage characteristics of the organic solar cells (P3HT/PCBM) in the dark (broken lines), and under 100 mW/cm2 of AM 1.5 G illumination (solid lines); Red plot: transparent conductive nanofiber paper-based solar cells; black plot: indium tin oxide glass-based solar cells. (c) Portable paper solar cells based on foldable and lightweight transparent conductive nanofiber paper.
Mentions: This procedure produced not only high electrical durability, but also transparent conductive patterns. When the silver nanowire inks were printed on a drying plate, and then the peeling off of the nanofiber paper (Fig. 1d), transparent and conductive patterns were fabricated on the nanofiber paper without the use of any etching processes. The transparent silver nanowire patterns on the nanofiber paper could be used to illuminate LED lights, as a result of their high electrical conductivity (Fig. 3a). The LED lights could still be illuminated under folding, and after recovery to the original flat form, because of the high foldability of the devices (Fig. 3a).

Bottom Line: The nanofiber paper enhanced high conductivity without any post treatments such as heating or mechanical pressing, when cellulose nanofiber dispersions were dropped on a silver nanowire thin layer.The transparent conductive nanofiber paper showed high electrical durability in repeated folding tests, due to dual advantages of the hydrophilic affinity between cellulose and silver nanowires, and the entanglement between cellulose nanofibers and silver nanowires.Therefore, using this conductive transparent paper, organic solar cells were produced that achieved a power conversion of 3.2%, which was as high as that of ITO-based solar cells.

View Article: PubMed Central - PubMed

Affiliation: The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.

ABSTRACT
Optically transparent nanofiber paper containing silver nanowires showed high electrical conductivity and maintained the high transparency, and low weight of the original transparent nanofiber paper. We demonstrated some procedures of optically transparent and electrically conductive cellulose nanofiber paper for lightweight and portable electronic devices. The nanofiber paper enhanced high conductivity without any post treatments such as heating or mechanical pressing, when cellulose nanofiber dispersions were dropped on a silver nanowire thin layer. The transparent conductive nanofiber paper showed high electrical durability in repeated folding tests, due to dual advantages of the hydrophilic affinity between cellulose and silver nanowires, and the entanglement between cellulose nanofibers and silver nanowires. Their optical transparency and electrical conductivity were as high as those of ITO glass. Therefore, using this conductive transparent paper, organic solar cells were produced that achieved a power conversion of 3.2%, which was as high as that of ITO-based solar cells.

No MeSH data available.


Related in: MedlinePlus