Enhanced photovoltaic performance of Cu-based metal-organic frameworks sensitized solar cell by addition of carbon nanotubes.
In the present work, TiO2 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 I3(-)/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.
Inorganic Nano-materials Lab, Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul 133-791 (Republic of Korea).
Deok Yeon
DY
Lee
Inorganic Nano-materials Lab, Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul 133-791 (Republic of Korea).
Chan Yong
CY
Shin
Inorganic Nano-materials Lab, Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul 133-791 (Republic of Korea).
Seog Joon
SJ
Yoon
Korea Institute of Science and Technology, Seoul 136-791 (Republic of Korea).
Haw Young
HY
Lee
Department of Defence Ammunitions, Daeduk College, Daejeon 305-715 (Republic of Korea).
Wonjoo
W
Lee
Inorganic Nano-materials Lab, Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul 133-791 (Republic of Korea).
Nabeen K
NK
Shrestha
Korea Institute of Science and Technology, Seoul 136-791 (Republic of Korea).
Joong Kee
JK
Lee
Inorganic Nano-materials Lab, Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul 133-791 (Republic of Korea).
Sung-Hwan
SH
Han