Hierarchically assembled nanostructures and their photovoltaic properties

Baurzhan Ilyassov, Niyazbek Ibrayev, Nurxat Nuraje

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Abstract In this study, the effect of morphology and defect density of ZnO nanostructures on photovoltaic performance and electron transport properties of Dye-sensitized solar cells (DSSCs) have been investigated by using highly stable electrolytes which consist of high boiling organic solvents and a mixture of ionic liquids with relatively low viscosity. Two different ZnO nanoarrays with rod and sheet morphologies were fabricated and assembled for photovoltaic and electron transport study of the DSSCs. A photoluminescence spectra study indicated that nanosheets had more defect density compared to nanorods, which resulted in a lower open circuit photovoltage. Electrochemical impedance spectroscopy (EIS) and dye absorption amount analysis further explained the high short-circuit current density (Jsc) of the DSSC with ZnO nanosheet structure based on the dye-loading amount, effective electron lifetime and electron density.

Original languageEnglish
Pages (from-to)885-889
Number of pages5
JournalMaterials Science in Semiconductor Processing
Volume40
DOIs
Publication statusPublished - 11 Aug 2015
Externally publishedYes

Fingerprint

Nanostructures
Nanosheets
Defect density
dyes
Coloring Agents
Dyes
solar cells
Electron transport properties
Ionic Liquids
Nanorods
Electrochemical impedance spectroscopy
Ionic liquids
Short circuit currents
Organic solvents
Boiling liquids
Electrolytes
Carrier concentration
Photoluminescence
Current density
electrons

Keywords

  • DSSCs
  • Dye-sensitized solar cell
  • Electrochemical impedance spectroscopy
  • Photoluminescence
  • Photovoltaic
  • Zinc oxide nanomaterials

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Hierarchically assembled nanostructures and their photovoltaic properties. / Ilyassov, Baurzhan; Ibrayev, Niyazbek; Nuraje, Nurxat.

In: Materials Science in Semiconductor Processing, Vol. 40, 11.08.2015, p. 885-889.

Research output: Contribution to journalArticle

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