Enhanced photovoltaic performance of Cu-based metal-organic frameworks sensitized solar cell by addition of carbon nanotubes

Deok Yeon Lee, Chan Yong Shin, Seog Joon Yoon, Haw Young Lee, Wonjoo Lee, Nabeen K. Shrestha, Joong Kee Lee, Sung Hwan Han

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

In the present work, TiO 2 nanoparticle and multi-walled carbon nanotubes composite powder is prepared hydrothermally. After doctor blading the paste from composite powder, the resulted composite film is sensitized with Cu-based metal-organic frameworks using a layer-by-layer deposition technique and the film is characterized using FE-SEM, EDX, XRD, UV/Visible spectrophotometry and photoluminescence spectroscopy. The influence of the carbon nanotubes in photovoltaic performance is studied by constructing a Grätzel cell with I 3 - /I - redox couple containing electrolyte. The results demonstrate that the introduction of carbon nanotubes accelerates the electron transfer, and thereby enhances the photovoltaic performance of the cell with a nearly 60% increment in power conversion efficiency.

Original languageEnglish
Article number3930
JournalScientific Reports
Volume4
DOIs
StatePublished - 3 Feb 2014

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