Design of highly ordered hierarchical catalytic nanostructures as high-flexibility counter electrodes for fiber-shaped dye-sensitized solar cells

Xiu Yun Gu; En Zi Chen; Kun Wei; Lu Lu Chen; Chao Yue Zhang; Guo Wen Sun; Jun Ren Tan; Hua Sheng Bi; Hang Xie; Geng Zhi Sun; Xia Gao; Xiao Jun Pan; Jin Yuan Zhou

doi:10.1063/5.0038801

Design of highly ordered hierarchical catalytic nanostructures as high-flexibility counter electrodes for fiber-shaped dye-sensitized solar cells

Xiu Yun Gu, En Zi Chen, Kun Wei, Lu Lu Chen, Chao Yue Zhang, Guo Wen Sun, Jun Ren Tan, Hua Sheng Bi, Hang Xie, Geng Zhi Sun, Xia Gao, Xiao Jun Pan, Jin Yuan Zhou

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

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

8 Scopus citations

Abstract

Ordered array structures will greatly reduce the stress formation in wearable electric devices during dynamic bending operation. In this work, highly flexible TiN-based fiber counter electrodes (FCEs) were designed via a post-ammonization treatment on the hydrothermally grown TiO2 nanowire arrays. Results show that the obtained TiN nanorod arrays (NRAs) are well aligned with a diameter of 200-320 nm and a length of several hundred nanometers to ∼1 μm. Moreover, fiber-shaped dye-sensitized solar cells assembled using TiN FCEs showed the maximum photoelectric conversion efficiency (PCE) of 5.69%, which is 16.3% higher than that of the ones based on Pt FCEs. Analysis indicated that this enhancement in PCE could be mainly due to the better electrochemical catalytic activity of TiN NRAs. Furthermore, the optimizations of the nanoscale morphologies of TiN NRAs suggest that both small diameters and large lengths can benefit the PCE and the dynamic bending stability, while the diameters show a major influence on them. The optimal FCEs show an ultralow decay rate of 0.017‰ per bending cycle.

Original language	English
Article number	053102
Journal	Applied Physics Letters
Volume	118
Issue number	5
DOIs	https://doi.org/10.1063/5.0038801
State	Published - 1 Feb 2021

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Gu, X. Y., Chen, E. Z., Wei, K., Chen, L. L., Zhang, C. Y., Sun, G. W., Tan, J. R., Bi, H. S., Xie, H., Sun, G. Z., Gao, X., Pan, X. J., & Zhou, J. Y. (2021). Design of highly ordered hierarchical catalytic nanostructures as high-flexibility counter electrodes for fiber-shaped dye-sensitized solar cells. Applied Physics Letters, 118(5), Article 053102. https://doi.org/10.1063/5.0038801

@article{11076050580d453283cd25159e770fb7,

title = "Design of highly ordered hierarchical catalytic nanostructures as high-flexibility counter electrodes for fiber-shaped dye-sensitized solar cells",

abstract = "Ordered array structures will greatly reduce the stress formation in wearable electric devices during dynamic bending operation. In this work, highly flexible TiN-based fiber counter electrodes (FCEs) were designed via a post-ammonization treatment on the hydrothermally grown TiO2 nanowire arrays. Results show that the obtained TiN nanorod arrays (NRAs) are well aligned with a diameter of 200-320 nm and a length of several hundred nanometers to ∼1 μm. Moreover, fiber-shaped dye-sensitized solar cells assembled using TiN FCEs showed the maximum photoelectric conversion efficiency (PCE) of 5.69%, which is 16.3% higher than that of the ones based on Pt FCEs. Analysis indicated that this enhancement in PCE could be mainly due to the better electrochemical catalytic activity of TiN NRAs. Furthermore, the optimizations of the nanoscale morphologies of TiN NRAs suggest that both small diameters and large lengths can benefit the PCE and the dynamic bending stability, while the diameters show a major influence on them. The optimal FCEs show an ultralow decay rate of 0.017‰ per bending cycle.",

author = "Gu, {Xiu Yun} and Chen, {En Zi} and Kun Wei and Chen, {Lu Lu} and Zhang, {Chao Yue} and Sun, {Guo Wen} and Tan, {Jun Ren} and Bi, {Hua Sheng} and Hang Xie and Sun, {Geng Zhi} and Xia Gao and Pan, {Xiao Jun} and Zhou, {Jin Yuan}",

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doi = "10.1063/5.0038801",

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T1 - Design of highly ordered hierarchical catalytic nanostructures as high-flexibility counter electrodes for fiber-shaped dye-sensitized solar cells

AU - Gu, Xiu Yun

AU - Chen, En Zi

AU - Wei, Kun

AU - Chen, Lu Lu

AU - Zhang, Chao Yue

AU - Sun, Guo Wen

AU - Tan, Jun Ren

AU - Bi, Hua Sheng

AU - Xie, Hang

AU - Sun, Geng Zhi

AU - Gao, Xia

AU - Pan, Xiao Jun

AU - Zhou, Jin Yuan

PY - 2021/2/1

Y1 - 2021/2/1

N2 - Ordered array structures will greatly reduce the stress formation in wearable electric devices during dynamic bending operation. In this work, highly flexible TiN-based fiber counter electrodes (FCEs) were designed via a post-ammonization treatment on the hydrothermally grown TiO2 nanowire arrays. Results show that the obtained TiN nanorod arrays (NRAs) are well aligned with a diameter of 200-320 nm and a length of several hundred nanometers to ∼1 μm. Moreover, fiber-shaped dye-sensitized solar cells assembled using TiN FCEs showed the maximum photoelectric conversion efficiency (PCE) of 5.69%, which is 16.3% higher than that of the ones based on Pt FCEs. Analysis indicated that this enhancement in PCE could be mainly due to the better electrochemical catalytic activity of TiN NRAs. Furthermore, the optimizations of the nanoscale morphologies of TiN NRAs suggest that both small diameters and large lengths can benefit the PCE and the dynamic bending stability, while the diameters show a major influence on them. The optimal FCEs show an ultralow decay rate of 0.017‰ per bending cycle.

AB - Ordered array structures will greatly reduce the stress formation in wearable electric devices during dynamic bending operation. In this work, highly flexible TiN-based fiber counter electrodes (FCEs) were designed via a post-ammonization treatment on the hydrothermally grown TiO2 nanowire arrays. Results show that the obtained TiN nanorod arrays (NRAs) are well aligned with a diameter of 200-320 nm and a length of several hundred nanometers to ∼1 μm. Moreover, fiber-shaped dye-sensitized solar cells assembled using TiN FCEs showed the maximum photoelectric conversion efficiency (PCE) of 5.69%, which is 16.3% higher than that of the ones based on Pt FCEs. Analysis indicated that this enhancement in PCE could be mainly due to the better electrochemical catalytic activity of TiN NRAs. Furthermore, the optimizations of the nanoscale morphologies of TiN NRAs suggest that both small diameters and large lengths can benefit the PCE and the dynamic bending stability, while the diameters show a major influence on them. The optimal FCEs show an ultralow decay rate of 0.017‰ per bending cycle.

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JO - Applied Physics Letters

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Design of highly ordered hierarchical catalytic nanostructures as high-flexibility counter electrodes for fiber-shaped dye-sensitized solar cells

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