Successive ionic layer adsorption and reaction of ZnSe shells for ZnO nanowire-based dye-sensitized solar cells

Jooyoung Chung, Jihyun Myoung, Jisook Oh, Sangwoo Lim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Thin ZnSe layers were deposited on ZnO nanowires by a novel successive ionic layer adsorption and reaction technique in order to solve recombination problems in ZnO nanowire-based dye-sensitized solar cells (DSSCs). Cell efficiency increased from 0.1 to 1.31.4% with the deposition of a 9- to13-nm-thick ZnSe shell on ZnO nanowires due to a large increase in J SC. The dramatic increase in J SC and cell efficiency is due to the facilitation of electron transfer related to ambipolar diffusion by the formation of a type II band alignment and the suppression of recombination in the presence of the ZnSe shell.

Original languageEnglish
Pages (from-to)535-539
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume73
Issue number4
DOIs
Publication statusPublished - 2012 Apr 1

Fingerprint

Nanowires
nanowires
solar cells
dyes
Adsorption
adsorption
ambipolar diffusion
cells
electron transfer
alignment
retarding
Electrons
Dye-sensitized solar cells

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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abstract = "Thin ZnSe layers were deposited on ZnO nanowires by a novel successive ionic layer adsorption and reaction technique in order to solve recombination problems in ZnO nanowire-based dye-sensitized solar cells (DSSCs). Cell efficiency increased from 0.1 to 1.31.4{\%} with the deposition of a 9- to13-nm-thick ZnSe shell on ZnO nanowires due to a large increase in J SC. The dramatic increase in J SC and cell efficiency is due to the facilitation of electron transfer related to ambipolar diffusion by the formation of a type II band alignment and the suppression of recombination in the presence of the ZnSe shell.",
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Successive ionic layer adsorption and reaction of ZnSe shells for ZnO nanowire-based dye-sensitized solar cells. / Chung, Jooyoung; Myoung, Jihyun; Oh, Jisook; Lim, Sangwoo.

In: Journal of Physics and Chemistry of Solids, Vol. 73, No. 4, 01.04.2012, p. 535-539.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Successive ionic layer adsorption and reaction of ZnSe shells for ZnO nanowire-based dye-sensitized solar cells

AU - Chung, Jooyoung

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AU - Oh, Jisook

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AB - Thin ZnSe layers were deposited on ZnO nanowires by a novel successive ionic layer adsorption and reaction technique in order to solve recombination problems in ZnO nanowire-based dye-sensitized solar cells (DSSCs). Cell efficiency increased from 0.1 to 1.31.4% with the deposition of a 9- to13-nm-thick ZnSe shell on ZnO nanowires due to a large increase in J SC. The dramatic increase in J SC and cell efficiency is due to the facilitation of electron transfer related to ambipolar diffusion by the formation of a type II band alignment and the suppression of recombination in the presence of the ZnSe shell.

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