Toward Interaction of Sensitizer and Functional Moieties in Hole-Transporting Materials for Efficient Semiconductor-Sensitized Solar Cells

Sb2S3-sensitized mesoporous-TiO2 solar cells using several conjugated polymers as hole-transporting materials (HTMs) are fabricated. We found that the cell performance was strongly correlated with the chemical interaction at the interface of Sb2S3 as sensitizer and the HTMs through the thiophene moi...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2011-11, Vol.11 (11), p.4789-4793
Main Authors: Im, Sang Hyuk, Lim, Choong-Sun, Chang, Jeong Ah, Lee, Yong Hui, Maiti, Nilkamal, Kim, Hi-Jung, Nazeeruddin, Md. K, Grätzel, Michael, Seok, Sang Il
Format: Article
Language:English
Subjects:
Antimony - chemistry
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Correlation
Electric potential
Electric Power Supplies
Electron Transport
Electronics
Energy
Energy conversion efficiency
Equipment Design
Equipment Failure Analysis
Exact sciences and technology
Materials
Materials Testing
Nanocrystalline materials
Nanostructure
Nanostructures - chemistry
Nanostructures - ultrastructure
Nanotechnology - instrumentation
Natural energy
Particle Size
Photovoltaic cells
Photovoltaic conversion
Physics
Polymers
Radiation effects on specific materials
Semiconductors
Solar cells
Solar cells. Photoelectrochemical cells
Solar Energy
Structure of solids and liquids
crystallography
Volatile organic compounds
Voltage
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Sb2S3-sensitized mesoporous-TiO2 solar cells using several conjugated polymers as hole-transporting materials (HTMs) are fabricated. We found that the cell performance was strongly correlated with the chemical interaction at the interface of Sb2S3 as sensitizer and the HTMs through the thiophene moieties, which led to a higher fill factor (FF), open-circuit voltage (V oc), and short-circuit current density (J sc). With the application of PCPDTBT (poly(2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)) as a HTM in a Sb2S3-sensitized solar cell, overall power conversion efficiencies of 6.18, 6.57, and 6.53% at 100, 50, and 10% solar irradiation, respectively, were achieved with a metal mask.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl2026184