Fabrication of layered hydroxide zinc nitrate films and their conversion to ZnO nanosheet assemblies for use in dye-sensitized solar cells

Takuya Yuki, Shintaro Ueno, Manabu Hagiwara, Shinobu Fujihara

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Layered hydroxide zinc nitrate (LHZN; Zn5(NO3)2(OH)8·xH2O) films were fabricated on glass or plastic substrates by a chemical bath deposition method combined with a homogeneous precipitation in methanolic solutions. High- or low-temperature pyrolytic decomposition of the LHZN films having two-dimensional morphology was attempted to obtain porous ZnO nanosheet-assembly films. The LHZN films were converted into porous ZnO films by pyrolyzing at temperatures above 400°C, while porous LHZN/ZnO hybrid films were obtained by pyrolyzing at a lower temperature of 120°C without morphological changes. The pyrolyzed ZnO films were applied to dye-sensitized solar cells (DSSCs), resulting in the generation of relatively high open-circuit voltages. The low-temperature pyrolysis enabled us to fabricate the LHZN/ZnO film even on the plastic substrate. Actually a cell using the LHZN/ZnO film on an indium tin oxide-coated polyethylene naphthalate substrate showed an energy conversion efficiency of 2.08% with a high open-circuit voltage around 0.70V.

Original languageEnglish
Pages (from-to)144-150
Number of pages7
JournalJournal of Asian Ceramic Societies
Volume3
Issue number1
DOIs
Publication statusPublished - 2015 Mar 1

Fingerprint

Nanosheets
Nitrates
Zinc
Fabrication
Open circuit voltage
Substrates
Temperature
Plastics
Dye-sensitized solar cells
zinc hydroxide nitrate
Polyethylene
Tin oxides
Energy conversion
Indium
Conversion efficiency
Polyethylenes
Pyrolysis
Decomposition
Glass

Keywords

  • Deposition
  • Dye-sensitized solar cells
  • Layered zinc hydroxide compound
  • Microstructure
  • Zinc oxide

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

@article{00baab6b3fe044e28782beda6602a241,
title = "Fabrication of layered hydroxide zinc nitrate films and their conversion to ZnO nanosheet assemblies for use in dye-sensitized solar cells",
abstract = "Layered hydroxide zinc nitrate (LHZN; Zn5(NO3)2(OH)8·xH2O) films were fabricated on glass or plastic substrates by a chemical bath deposition method combined with a homogeneous precipitation in methanolic solutions. High- or low-temperature pyrolytic decomposition of the LHZN films having two-dimensional morphology was attempted to obtain porous ZnO nanosheet-assembly films. The LHZN films were converted into porous ZnO films by pyrolyzing at temperatures above 400°C, while porous LHZN/ZnO hybrid films were obtained by pyrolyzing at a lower temperature of 120°C without morphological changes. The pyrolyzed ZnO films were applied to dye-sensitized solar cells (DSSCs), resulting in the generation of relatively high open-circuit voltages. The low-temperature pyrolysis enabled us to fabricate the LHZN/ZnO film even on the plastic substrate. Actually a cell using the LHZN/ZnO film on an indium tin oxide-coated polyethylene naphthalate substrate showed an energy conversion efficiency of 2.08{\%} with a high open-circuit voltage around 0.70V.",
keywords = "Deposition, Dye-sensitized solar cells, Layered zinc hydroxide compound, Microstructure, Zinc oxide",
author = "Takuya Yuki and Shintaro Ueno and Manabu Hagiwara and Shinobu Fujihara",
year = "2015",
month = "3",
day = "1",
doi = "10.1016/j.jascer.2014.12.006",
language = "English",
volume = "3",
pages = "144--150",
journal = "Journal of Asian Ceramic Societies",
issn = "2187-0764",
publisher = "Elsevier BV",
number = "1",

}

TY - JOUR

T1 - Fabrication of layered hydroxide zinc nitrate films and their conversion to ZnO nanosheet assemblies for use in dye-sensitized solar cells

AU - Yuki, Takuya

AU - Ueno, Shintaro

AU - Hagiwara, Manabu

AU - Fujihara, Shinobu

PY - 2015/3/1

Y1 - 2015/3/1

N2 - Layered hydroxide zinc nitrate (LHZN; Zn5(NO3)2(OH)8·xH2O) films were fabricated on glass or plastic substrates by a chemical bath deposition method combined with a homogeneous precipitation in methanolic solutions. High- or low-temperature pyrolytic decomposition of the LHZN films having two-dimensional morphology was attempted to obtain porous ZnO nanosheet-assembly films. The LHZN films were converted into porous ZnO films by pyrolyzing at temperatures above 400°C, while porous LHZN/ZnO hybrid films were obtained by pyrolyzing at a lower temperature of 120°C without morphological changes. The pyrolyzed ZnO films were applied to dye-sensitized solar cells (DSSCs), resulting in the generation of relatively high open-circuit voltages. The low-temperature pyrolysis enabled us to fabricate the LHZN/ZnO film even on the plastic substrate. Actually a cell using the LHZN/ZnO film on an indium tin oxide-coated polyethylene naphthalate substrate showed an energy conversion efficiency of 2.08% with a high open-circuit voltage around 0.70V.

AB - Layered hydroxide zinc nitrate (LHZN; Zn5(NO3)2(OH)8·xH2O) films were fabricated on glass or plastic substrates by a chemical bath deposition method combined with a homogeneous precipitation in methanolic solutions. High- or low-temperature pyrolytic decomposition of the LHZN films having two-dimensional morphology was attempted to obtain porous ZnO nanosheet-assembly films. The LHZN films were converted into porous ZnO films by pyrolyzing at temperatures above 400°C, while porous LHZN/ZnO hybrid films were obtained by pyrolyzing at a lower temperature of 120°C without morphological changes. The pyrolyzed ZnO films were applied to dye-sensitized solar cells (DSSCs), resulting in the generation of relatively high open-circuit voltages. The low-temperature pyrolysis enabled us to fabricate the LHZN/ZnO film even on the plastic substrate. Actually a cell using the LHZN/ZnO film on an indium tin oxide-coated polyethylene naphthalate substrate showed an energy conversion efficiency of 2.08% with a high open-circuit voltage around 0.70V.

KW - Deposition

KW - Dye-sensitized solar cells

KW - Layered zinc hydroxide compound

KW - Microstructure

KW - Zinc oxide

UR - http://www.scopus.com/inward/record.url?scp=84971657127&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84971657127&partnerID=8YFLogxK

U2 - 10.1016/j.jascer.2014.12.006

DO - 10.1016/j.jascer.2014.12.006

M3 - Article

AN - SCOPUS:84971657127

VL - 3

SP - 144

EP - 150

JO - Journal of Asian Ceramic Societies

JF - Journal of Asian Ceramic Societies

SN - 2187-0764

IS - 1

ER -