A seeding method to change primary particle of oriented attachment network titanium dioxide for dye-sensitized solar cells

Ping-Lin Kuo, Chun Hou Liao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, we use seeding methods to improve crystal thermal stability and thermal stress by oriented attachment (OA) particles as seeds. The OA S2 synthesized by repeating two times the seed process has pure anatase phase even if was calcined and high surface area (113.2 m2 g-1). Further, the lattice images of OA S2 obtains from oriented attachment mechanism showed perfect alignment in grain orientation and no grain boundary appears between the necking particles. The films of OA S2 after calcination at 500 °C is homogeneous without cavities over large area. The photovoltaic performance of dye-sensitized solar cells made of OA S2 exhibits higher J SC and FF than the devices made of JGC 18NRT. The reason for the higher JSC can be attributed to the high surface area and pure anatase phase. The OA S2 shows the lower Rw (charge transport resistance) than the JGC 18NRT. It is confirmed that the OA S2 film has the capability of higher electron transmission due to oriented attachment structure, so it displays low internal resistance and results in higher FF. A higher light-to-electricity power conversion efficiency of 6.10% is achieved by applying the OA S2 as compared with JGC 18NRT (5.85%).

Original languageEnglish
Pages (from-to)98-103
Number of pages6
JournalJournal of Power Sources
Volume267
DOIs
Publication statusPublished - 2014 Dec 1

Fingerprint

inoculation
titanium oxides
Titanium dioxide
attachment
Seed
solar cells
dyes
Thermal stress
Crystal orientation
Calcination
Conversion efficiency
Charge transfer
Grain boundaries
Thermodynamic stability
Electricity
Crystals
Electrons
anatase
seeds
Dye-sensitized solar cells

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

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title = "A seeding method to change primary particle of oriented attachment network titanium dioxide for dye-sensitized solar cells",
abstract = "In this paper, we use seeding methods to improve crystal thermal stability and thermal stress by oriented attachment (OA) particles as seeds. The OA S2 synthesized by repeating two times the seed process has pure anatase phase even if was calcined and high surface area (113.2 m2 g-1). Further, the lattice images of OA S2 obtains from oriented attachment mechanism showed perfect alignment in grain orientation and no grain boundary appears between the necking particles. The films of OA S2 after calcination at 500 °C is homogeneous without cavities over large area. The photovoltaic performance of dye-sensitized solar cells made of OA S2 exhibits higher J SC and FF than the devices made of JGC 18NRT. The reason for the higher JSC can be attributed to the high surface area and pure anatase phase. The OA S2 shows the lower Rw (charge transport resistance) than the JGC 18NRT. It is confirmed that the OA S2 film has the capability of higher electron transmission due to oriented attachment structure, so it displays low internal resistance and results in higher FF. A higher light-to-electricity power conversion efficiency of 6.10{\%} is achieved by applying the OA S2 as compared with JGC 18NRT (5.85{\%}).",
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A seeding method to change primary particle of oriented attachment network titanium dioxide for dye-sensitized solar cells. / Kuo, Ping-Lin; Liao, Chun Hou.

In: Journal of Power Sources, Vol. 267, 01.12.2014, p. 98-103.

Research output: Contribution to journalArticle

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