Abstract
Preparation of well-interconnected TiO2 electrodes at low temperature is critical for the fabrication of highly efficient dye-sensitized solar cells (DSCs) on plastic substrates. Herein we explore a synergistic approach using a combination of chemical and physical sintering. We formulate a binder-free TiO2 paste based on "nanoglue" as the chemical sintering agent, and use it to construct a photoelectrode on plastic by low-temperature physical compression to further improve the connectivity of TiO2 films. We systematically investigated the factors affecting the photovoltaic performance and found the conditions to achieve electron diffusion lengths as long as 25 μm and charge collection efficiencies as high as 95%, as electrochemical impedance spectroscopy measurements indicate. We apply this approach to obtain a DSC deposited on plastic displaying 6.4% power conversion efficiency based on commercial P25 titania particles.
| Original language | English |
|---|---|
| Pages (from-to) | 76795-76803 |
| Number of pages | 9 |
| Journal | RSC Advances |
| Volume | 5 |
| Issue number | 94 |
| DOIs | |
| Publication status | Published - 2015 Sep 3 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
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Synergistic strategies for the preparation of highly efficient dye-sensitized solar cells on plastic substrates : Combination of chemical and physical sintering. / Li, Yuelong; Yoo, Kicheon; Lee, Doh Kwon; Kim, Jin Young; Son, Hae Jung; Kim, Jong Hak; Lee, Chul Ho; Míguez, Hernán; Ko, Min Jae.
In: RSC Advances, Vol. 5, No. 94, 03.09.2015, p. 76795-76803.Research output: Contribution to journal › Article
TY - JOUR
T1 - Synergistic strategies for the preparation of highly efficient dye-sensitized solar cells on plastic substrates
T2 - Combination of chemical and physical sintering
AU - Li, Yuelong
AU - Yoo, Kicheon
AU - Lee, Doh Kwon
AU - Kim, Jin Young
AU - Son, Hae Jung
AU - Kim, Jong Hak
AU - Lee, Chul Ho
AU - Míguez, Hernán
AU - Ko, Min Jae
PY - 2015/9/3
Y1 - 2015/9/3
N2 - Preparation of well-interconnected TiO2 electrodes at low temperature is critical for the fabrication of highly efficient dye-sensitized solar cells (DSCs) on plastic substrates. Herein we explore a synergistic approach using a combination of chemical and physical sintering. We formulate a binder-free TiO2 paste based on "nanoglue" as the chemical sintering agent, and use it to construct a photoelectrode on plastic by low-temperature physical compression to further improve the connectivity of TiO2 films. We systematically investigated the factors affecting the photovoltaic performance and found the conditions to achieve electron diffusion lengths as long as 25 μm and charge collection efficiencies as high as 95%, as electrochemical impedance spectroscopy measurements indicate. We apply this approach to obtain a DSC deposited on plastic displaying 6.4% power conversion efficiency based on commercial P25 titania particles.
AB - Preparation of well-interconnected TiO2 electrodes at low temperature is critical for the fabrication of highly efficient dye-sensitized solar cells (DSCs) on plastic substrates. Herein we explore a synergistic approach using a combination of chemical and physical sintering. We formulate a binder-free TiO2 paste based on "nanoglue" as the chemical sintering agent, and use it to construct a photoelectrode on plastic by low-temperature physical compression to further improve the connectivity of TiO2 films. We systematically investigated the factors affecting the photovoltaic performance and found the conditions to achieve electron diffusion lengths as long as 25 μm and charge collection efficiencies as high as 95%, as electrochemical impedance spectroscopy measurements indicate. We apply this approach to obtain a DSC deposited on plastic displaying 6.4% power conversion efficiency based on commercial P25 titania particles.
UR - http://www.scopus.com/inward/record.url?scp=84941729565&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84941729565&partnerID=8YFLogxK
U2 - 10.1039/c5ra10290a
DO - 10.1039/c5ra10290a
M3 - Article
AN - SCOPUS:84941729565
VL - 5
SP - 76795
EP - 76803
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 94
ER -