Passivation of zinc oxide nanowires for improved piezoelectric energy harvesting devices

Nimra Jalali; Joe Briscoe; Peter Wooliams; Mark Stewart; Paul M. Weaver; Markys G. Cain; Steven Dunn

doi:10.1088/1742-6596/476/1/012131

Passivation of zinc oxide nanowires for improved piezoelectric energy harvesting devices

Nimra Jalali, Joe Briscoe, Peter Wooliams, Mark Stewart, Paul M. Weaver, Markys G. Cain, Steven Dunn

Energy, Materials and Environment Research Centre

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

This paper evaluates the improvement in performance of ZnO nanowires energy harvesters using p-type copper thiocyanate (CuSCN) passivation. Two types of p-n junction based devices: ZnO/PEDOT:PSS (poly(3,4-ethylene-dioxythiophene) poly(styrenesulfonate)) and ZnO/CuSCN/PEDOT:PSS were fabricated. It was observed that, the passivation of nanowires using CuSCN improved the performance four times, yielding a peak power density of 303 μWcm−2 for a load of 3.54 kΩ. The results were supported by impedance analysis of each device and it was observed that the piezoelectric voltage output of the device depends on its RC time constant.

Original language	English
Article number	012131
Journal	Journal of Physics: Conference Series
Volume	476
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/476/1/012131
Publication status	Published - 4 Dec 2013

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10.1088/1742-6596/476/1/012131

Jalali_2013_J._Phys.__Conf._Ser._476_012131Final published version, 1.36 MBLicence: CC BY 4.0

Cite this

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title = "Passivation of zinc oxide nanowires for improved piezoelectric energy harvesting devices",

abstract = "This paper evaluates the improvement in performance of ZnO nanowires energy harvesters using p-type copper thiocyanate (CuSCN) passivation. Two types of p-n junction based devices: ZnO/PEDOT:PSS (poly(3,4-ethylene-dioxythiophene) poly(styrenesulfonate)) and ZnO/CuSCN/PEDOT:PSS were fabricated. It was observed that, the passivation of nanowires using CuSCN improved the performance four times, yielding a peak power density of 303 μWcm−2 for a load of 3.54 kΩ. The results were supported by impedance analysis of each device and it was observed that the piezoelectric voltage output of the device depends on its RC time constant.",

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T1 - Passivation of zinc oxide nanowires for improved piezoelectric energy harvesting devices

AU - Jalali, Nimra

AU - Briscoe, Joe

AU - Wooliams, Peter

AU - Stewart, Mark

AU - Weaver, Paul M.

AU - Cain, Markys G.

AU - Dunn, Steven

PY - 2013/12/4

Y1 - 2013/12/4

N2 - This paper evaluates the improvement in performance of ZnO nanowires energy harvesters using p-type copper thiocyanate (CuSCN) passivation. Two types of p-n junction based devices: ZnO/PEDOT:PSS (poly(3,4-ethylene-dioxythiophene) poly(styrenesulfonate)) and ZnO/CuSCN/PEDOT:PSS were fabricated. It was observed that, the passivation of nanowires using CuSCN improved the performance four times, yielding a peak power density of 303 μWcm−2 for a load of 3.54 kΩ. The results were supported by impedance analysis of each device and it was observed that the piezoelectric voltage output of the device depends on its RC time constant.

AB - This paper evaluates the improvement in performance of ZnO nanowires energy harvesters using p-type copper thiocyanate (CuSCN) passivation. Two types of p-n junction based devices: ZnO/PEDOT:PSS (poly(3,4-ethylene-dioxythiophene) poly(styrenesulfonate)) and ZnO/CuSCN/PEDOT:PSS were fabricated. It was observed that, the passivation of nanowires using CuSCN improved the performance four times, yielding a peak power density of 303 μWcm−2 for a load of 3.54 kΩ. The results were supported by impedance analysis of each device and it was observed that the piezoelectric voltage output of the device depends on its RC time constant.

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DO - 10.1088/1742-6596/476/1/012131

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VL - 476

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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