Near-infrared responsive PbS-sensitized photovoltaic photodetectors fabricated by the spin-assisted successive ionic layer adsorption and reaction method

Sang Hyuk Im, Hi Jung Kim, Sang Il Seok

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A PbS-sensitized photovoltaic photodetector responsive to near-infrared (NIR) light was fabricated by depositing monolayered PbS nanoparticles on a mesoporous TiO2 (mp-TiO2) film via the spin-assisted successive ionic layer adsorption and reaction (SILAR) method. By adjusting the size and morphology of the PbS nanoparticles through repeated spin-assisted SILAR cycles, the PbS-sensitized photovoltaic photodetector achieved an external quantum efficiency of 9.3% at 1140nm wavelength and could process signals up to 1kHz.

Original languageEnglish
Article number395502
JournalNanotechnology
Volume22
Issue number39
DOIs
Publication statusPublished - 2011 Sep 30
Externally publishedYes

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Photodetectors
Nanoparticles
Adsorption
Infrared radiation
Quantum efficiency
Light
Wavelength

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Near-infrared responsive PbS-sensitized photovoltaic photodetectors fabricated by the spin-assisted successive ionic layer adsorption and reaction method. / Im, Sang Hyuk; Kim, Hi Jung; Seok, Sang Il.

In: Nanotechnology, Vol. 22, No. 39, 395502, 30.09.2011.

Research output: Contribution to journalArticle

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