---
_id: '2025'
abstract:
- lang: eng
text: " As the electron transport layer of dye-sensitized solar
cells (DSSCs), the photoanode is an important component that affects photoelectric
conversion efficiency (PCE). The commonly used material titanium dioxide (TiO2)
is difficult to prepare as nanostructures with large specific surface area, which
affects dye loading and electrolyte diffusion. Herein, TiO2 nanofibers and ZnO-TiO2
composite nanofibers with different molar ratios are synthesized by electrospinning
technology. The above nanofibers are coated on photoanodes by the doctor blade
method to assemble DSSCs. The influence of the composite ratio of ZnO-TiO2 composite
nanofibers on the photoelectric performance of the assembled DSSCs is explored.
The ZnO-TiO2 composite nanofibers with a molar ratio of 1 : 2 have large specific
surface area and porosity and have the smallest charge transfer resistance at
the photoanode-electrolyte interface. The PCE of the nanofiber-modified DSSCs
reaches a maximum of 3.66%, which is 56% higher than that of the TiO2 nanofiber-modified
DSSCs. The photovoltaic parameters such as open circuit voltage (VOC), current
density (JSC), and fill factor (FF) are 0.58 V, 10.36 mA/cm2, and 0.61, respectively.
Proper compounding of zinc oxide (ZnO) can not only make the nanofibers absorb
more dyes and enhance the light-harvesting ability but also improve the diffusion
of the electrolyte and enhance the electron transport, thus successfully improving
the power conversion efficiency of DSSCs.\r\n "
article_number: '7356943'
article_type: original
author:
- first_name: Qiqi
full_name: Chang, Qiqi
last_name: Chang
- first_name: Jun
full_name: Xu, Jun
last_name: Xu
- first_name: Yijun
full_name: Han, Yijun
last_name: Han
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
- first_name: Tianhong
full_name: He, Tianhong
last_name: He
- first_name: Ruiping
full_name: Zheng, Ruiping
last_name: Zheng
citation:
alphadin: 'Chang, Qiqi ; Xu,
Jun ; Han, Yijun ; Ehrmann, Andrea ; He,
Tianhong ; Zheng, Ruiping:
Photoelectric Performance Optimization of Dye-Sensitized Solar Cells Based on
ZnO-TiO2 Composite Nanofibers. In: Journal of Nanomaterials Bd. 2022, Hindawi
Limited (2022)'
ama: Chang Q, Xu J, Han Y, Ehrmann A, He T, Zheng R. Photoelectric Performance Optimization
of Dye-Sensitized Solar Cells Based on ZnO-TiO2 Composite Nanofibers. Journal
of Nanomaterials. 2022;2022. doi:10.1155/2022/7356943
apa: Chang, Q., Xu, J., Han, Y., Ehrmann, A., He, T., & Zheng, R. (2022). Photoelectric
Performance Optimization of Dye-Sensitized Solar Cells Based on ZnO-TiO2 Composite
Nanofibers. Journal of Nanomaterials, 2022. https://doi.org/10.1155/2022/7356943
bibtex: '@article{Chang_Xu_Han_Ehrmann_He_Zheng_2022, title={Photoelectric Performance
Optimization of Dye-Sensitized Solar Cells Based on ZnO-TiO2 Composite Nanofibers},
volume={2022}, DOI={10.1155/2022/7356943},
number={7356943}, journal={Journal of Nanomaterials}, publisher={Hindawi Limited},
author={Chang, Qiqi and Xu, Jun and Han, Yijun and Ehrmann, Andrea and He, Tianhong
and Zheng, Ruiping}, year={2022} }'
chicago: Chang, Qiqi, Jun Xu, Yijun Han, Andrea Ehrmann, Tianhong He, and Ruiping
Zheng. “Photoelectric Performance Optimization of Dye-Sensitized Solar Cells Based
on ZnO-TiO2 Composite Nanofibers.” Journal of Nanomaterials 2022 (2022).
https://doi.org/10.1155/2022/7356943.
ieee: Q. Chang, J. Xu, Y. Han, A. Ehrmann, T. He, and R. Zheng, “Photoelectric Performance
Optimization of Dye-Sensitized Solar Cells Based on ZnO-TiO2 Composite Nanofibers,”
Journal of Nanomaterials, vol. 2022, 2022.
mla: Chang, Qiqi, et al. “Photoelectric Performance Optimization of Dye-Sensitized
Solar Cells Based on ZnO-TiO2 Composite Nanofibers.” Journal of Nanomaterials,
vol. 2022, 7356943, Hindawi Limited, 2022, doi:10.1155/2022/7356943.
short: Q. Chang, J. Xu, Y. Han, A. Ehrmann, T. He, R. Zheng, Journal of Nanomaterials
2022 (2022).
date_created: 2022-07-14T17:44:39Z
date_updated: 2024-03-27T14:01:14Z
doi: 10.1155/2022/7356943
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2022-07-14T17:43:57Z
date_updated: 2022-07-14T17:43:57Z
file_id: '2026'
file_name: _2022_Chang_JoN2022_7356943.pdf
file_size: 4097888
relation: main_file
success: 1
file_date_updated: 2022-07-14T17:43:57Z
has_accepted_license: '1'
intvolume: ' 2022'
language:
- iso: eng
oa: '1'
publication: Journal of Nanomaterials
publication_identifier:
eissn:
- 1687-4129
issn:
- 1687-4110
publication_status: published
publisher: Hindawi Limited
quality_controlled: '1'
status: public
title: Photoelectric Performance Optimization of Dye-Sensitized Solar Cells Based
on ZnO-TiO2 Composite Nanofibers
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
urn: urn:nbn:de:hbz:bi10-20257
user_id: '245590'
volume: 2022
year: '2022'
...
---
_id: '1072'
abstract:
- lang: eng
text: " Due to their electrical and mechanical properties, carbon
nanofibers are of large interest for diverse applications, from batteries to solar
cells to filters. They can be produced by electrospinning polyacrylonitrile (PAN),
stabilizing the gained nanofiber mats, and afterwards, carbonizing them in inert
gas. The electrospun base material and the stabilization process are crucial for
the results of the carbonization process, defining the whole fiber morphology.
While blending PAN with gelatin to gain highly porous nanofibers has been reported
a few times in the literature, no attempts have been made yet to stabilize and
carbonize these fibers. This paper reports on the first tests of stabilizing PAN/gelatin
nanofibers, depicting the impact of different stabilization temperatures and heating
rates on the chemical properties as well as the morphologies of the resulting
nanofiber mats. Similar to stabilization of pure PAN, a stabilization temperature
of 280°C seems suitable, while the heating rate does not significantly influence
the chemical properties. Compared to stabilization of pure PAN nanofiber mats,
approximately doubled heating rates can be used for PAN/gelatin blends without
creating undesired conglutinations, making this base material more suitable for
industrial processes.\r\n "
alternative_id:
- '320'
author:
- first_name: Lilia
full_name: Sabantina, Lilia
last_name: Sabantina
- first_name: Daria
full_name: Wehlage, Daria
last_name: Wehlage
- first_name: Michaela
full_name: Klöcker, Michaela
last_name: Klöcker
- first_name: Al
full_name: Mamun, Al
last_name: Mamun
- first_name: Timo
full_name: Grothe, Timo
id: '221330'
last_name: Grothe
orcid: 0000-0002-9099-4277
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94758915
- first_name: Francisco José
full_name: García-Mateos, Francisco José
last_name: García-Mateos
- first_name: José
full_name: Rodríguez-Mirasol, José
last_name: Rodríguez-Mirasol
- first_name: Tomás
full_name: Cordero, Tomás
last_name: Cordero
- first_name: Karin
full_name: Finsterbusch, Karin
last_name: Finsterbusch
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94758916
citation:
alphadin: 'Sabantina,
Lilia ; Wehlage, Daria ;
Klöcker, Michaela ; Mamun,
Al ; Grothe, Timo ; García-Mateos, Francisco José ; Rodríguez-Mirasol, José ; Cordero,
Tomás ; u. a.: Stabilization of Electrospun PAN/Gelatin Nanofiber
Mats for Carbonization. In: Journal of Nanomaterials Bd. 2018, Hindawi
Limited (2018), S. 1–12'
ama: Sabantina L, Wehlage D, Klöcker M, et al. Stabilization of Electrospun PAN/Gelatin
Nanofiber Mats for Carbonization. Journal of Nanomaterials. 2018;2018:1-12.
doi:10.1155/2018/6131085
apa: Sabantina, L., Wehlage, D., Klöcker, M., Mamun, A., Grothe, T., García-Mateos,
F. J., … Ehrmann, A. (2018). Stabilization of Electrospun PAN/Gelatin Nanofiber
Mats for Carbonization. Journal of Nanomaterials, 2018, 1–12. https://doi.org/10.1155/2018/6131085
bibtex: '@article{Sabantina_Wehlage_Klöcker_Mamun_Grothe_García-Mateos_Rodríguez-Mirasol_Cordero_Finsterbusch_Ehrmann_2018,
title={Stabilization of Electrospun PAN/Gelatin Nanofiber Mats for Carbonization},
volume={2018}, DOI={10.1155/2018/6131085},
journal={Journal of Nanomaterials}, publisher={Hindawi Limited}, author={Sabantina,
Lilia and Wehlage, Daria and Klöcker, Michaela and Mamun, Al and Grothe, Timo
and García-Mateos, Francisco José and Rodríguez-Mirasol, José and Cordero, Tomás
and Finsterbusch, Karin and Ehrmann, Andrea}, year={2018}, pages={1–12} }'
chicago: 'Sabantina, Lilia, Daria Wehlage, Michaela Klöcker, Al Mamun, Timo Grothe,
Francisco José García-Mateos, José Rodríguez-Mirasol, Tomás Cordero, Karin Finsterbusch,
and Andrea Ehrmann. “Stabilization of Electrospun PAN/Gelatin Nanofiber Mats for
Carbonization.” Journal of Nanomaterials 2018 (2018): 1–12. https://doi.org/10.1155/2018/6131085.'
ieee: L. Sabantina et al., “Stabilization of Electrospun PAN/Gelatin Nanofiber
Mats for Carbonization,” Journal of Nanomaterials, vol. 2018, pp. 1–12,
2018.
mla: Sabantina, Lilia, et al. “Stabilization of Electrospun PAN/Gelatin Nanofiber
Mats for Carbonization.” Journal of Nanomaterials, vol. 2018, Hindawi Limited,
2018, pp. 1–12, doi:10.1155/2018/6131085.
short: L. Sabantina, D. Wehlage, M. Klöcker, A. Mamun, T. Grothe, F.J. García-Mateos,
J. Rodríguez-Mirasol, T. Cordero, K. Finsterbusch, A. Ehrmann, Journal of Nanomaterials
2018 (2018) 1–12.
date_created: 2021-05-31T18:36:33Z
date_updated: 2023-10-04T13:06:57Z
doi: 10.1155/2018/6131085
intvolume: ' 2018'
language:
- iso: eng
page: 1-12
publication: Journal of Nanomaterials
publication_identifier:
eissn:
- 1687-4129
issn:
- 1687-4110
publication_status: published
publisher: Hindawi Limited
status: public
title: Stabilization of Electrospun PAN/Gelatin Nanofiber Mats for Carbonization
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: '245590'
volume: 2018
year: '2018'
...
---
_id: '1079'
abstract:
- lang: eng
text: " Fourfold magnetic nanoparticles, created from nanowires
or in the form of an open square, offer the possibility of creating quaternary
memory devices with four unambiguously distinguishable stable states at remanence.
This feature, however, has been simulated for single magnetic nanoparticles or
clusters with interparticle distances similar to the nanoparticle dimensions.
For the possible use in bit-patterned media, it is important to understand the
scaling behavior of the stability of the additional intermediate states with the
interparticle distance. The paper investigates exemplarily nanoparticles of two
shapes which were found to be optimum to gain four states at remanence. For clusters
of these particles, the probability of reaching the additional intermediate states
in all particles in the same field region is strongly reduced with decreased interparticle
distance. The differences between both shapes indicate possible solutions for
this problem in the form of new nanoparticle shapes.\r\n "
author:
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94758840
- first_name: Tomasz
full_name: Blachowicz, Tomasz
last_name: Blachowicz
citation:
alphadin: 'Ehrmann, Andrea ; Blachowicz, Tomasz: Influence of the Distance
between Nanoparticles in Clusters on the Magnetization Reversal Process. In: Journal
of Nanomaterials Bd. 2017, Hindawi Limited (2017), S. 1–6'
ama: Ehrmann A, Blachowicz T. Influence of the Distance between Nanoparticles in
Clusters on the Magnetization Reversal Process. Journal of Nanomaterials.
2017;2017:1-6. doi:10.1155/2017/5046076
apa: Ehrmann, A., & Blachowicz, T. (2017). Influence of the Distance between
Nanoparticles in Clusters on the Magnetization Reversal Process. Journal of
Nanomaterials, 2017, 1–6. https://doi.org/10.1155/2017/5046076
bibtex: '@article{Ehrmann_Blachowicz_2017, title={Influence of the Distance between
Nanoparticles in Clusters on the Magnetization Reversal Process}, volume={2017},
DOI={10.1155/2017/5046076},
journal={Journal of Nanomaterials}, publisher={Hindawi Limited}, author={Ehrmann,
Andrea and Blachowicz, Tomasz}, year={2017}, pages={1–6} }'
chicago: 'Ehrmann, Andrea, and Tomasz Blachowicz. “Influence of the Distance between
Nanoparticles in Clusters on the Magnetization Reversal Process.” Journal of
Nanomaterials 2017 (2017): 1–6. https://doi.org/10.1155/2017/5046076.'
ieee: A. Ehrmann and T. Blachowicz, “Influence of the Distance between Nanoparticles
in Clusters on the Magnetization Reversal Process,” Journal of Nanomaterials,
vol. 2017, pp. 1–6, 2017.
mla: Ehrmann, Andrea, and Tomasz Blachowicz. “Influence of the Distance between
Nanoparticles in Clusters on the Magnetization Reversal Process.” Journal of
Nanomaterials, vol. 2017, Hindawi Limited, 2017, pp. 1–6, doi:10.1155/2017/5046076.
short: A. Ehrmann, T. Blachowicz, Journal of Nanomaterials 2017 (2017) 1–6.
date_created: 2021-05-31T18:36:43Z
date_updated: 2021-06-01T07:37:38Z
doi: 10.1155/2017/5046076
intvolume: ' 2017'
language:
- iso: eng
page: 1-6
publication: Journal of Nanomaterials
publication_identifier:
eissn:
- 1687-4129
issn:
- 1687-4110
publication_status: published
publisher: Hindawi Limited
status: public
title: Influence of the Distance between Nanoparticles in Clusters on the Magnetization
Reversal Process
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: '237837'
volume: 2017
year: '2017'
...