Abstract
A nanopatterning technique using nanostamps that provides a facile process to create a nature-inspired moth-eye structure achieving high transmittance in the visible range as well as a self-cleaning effect is reported. Commercially available perfluoropolyether (PFPE) and NOA63 as the mold resin and second replica mold material, respectively, play an important role in fabricating the structure. The structure is found to increase transmittance up to 82% at 540 nm and contact angle up to 150°, representing superhydrophobicity even without the aid of a fluorinated self-assembled monolayer (SAM) coating. The resulting solid-state dye-sensitized solar cells (ssDSSCs) with moth-eye structures show enhancement of efficiency to 7.3% at 100 mW cm-2, which is among the highest values reported to date for N719 dye-based ssDSSCs. This nature-inspired nanopatterning process could be used for improving light harvesting in any type of photovoltaic cell, and it produces superhydrophobic surfaces, which in turn lead to self-cleaning for long-term stability. A nature-inspired moth-eye structure is created via a facile nanopatterning technique using polymeric nanostamps. The resulting solid-state dye-sensitized solar cells show enhancement of efficiency to 7.3% at 100 mW cm-2, which is one of the highest values observed for N719 dye.
| Original language | English |
|---|---|
| Article number | 1300632 |
| Journal | Advanced Energy Materials |
| Volume | 4 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2014 Feb 18 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
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Bifunctional moth-eye nanopatterned dye-sensitized solar cells : Light-harvesting and self-cleaning effects. / Heo, Sung Yeon; Koh, Jong Kwan; Kang, Gumin; Ahn, Sung Hoon; Chi, Won Seok; Kim, Kyoungsik; Kim, Jong Hak.
In: Advanced Energy Materials, Vol. 4, No. 3, 1300632, 18.02.2014.Research output: Contribution to journal › Article
TY - JOUR
T1 - Bifunctional moth-eye nanopatterned dye-sensitized solar cells
T2 - Light-harvesting and self-cleaning effects
AU - Heo, Sung Yeon
AU - Koh, Jong Kwan
AU - Kang, Gumin
AU - Ahn, Sung Hoon
AU - Chi, Won Seok
AU - Kim, Kyoungsik
AU - Kim, Jong Hak
PY - 2014/2/18
Y1 - 2014/2/18
N2 - A nanopatterning technique using nanostamps that provides a facile process to create a nature-inspired moth-eye structure achieving high transmittance in the visible range as well as a self-cleaning effect is reported. Commercially available perfluoropolyether (PFPE) and NOA63 as the mold resin and second replica mold material, respectively, play an important role in fabricating the structure. The structure is found to increase transmittance up to 82% at 540 nm and contact angle up to 150°, representing superhydrophobicity even without the aid of a fluorinated self-assembled monolayer (SAM) coating. The resulting solid-state dye-sensitized solar cells (ssDSSCs) with moth-eye structures show enhancement of efficiency to 7.3% at 100 mW cm-2, which is among the highest values reported to date for N719 dye-based ssDSSCs. This nature-inspired nanopatterning process could be used for improving light harvesting in any type of photovoltaic cell, and it produces superhydrophobic surfaces, which in turn lead to self-cleaning for long-term stability. A nature-inspired moth-eye structure is created via a facile nanopatterning technique using polymeric nanostamps. The resulting solid-state dye-sensitized solar cells show enhancement of efficiency to 7.3% at 100 mW cm-2, which is one of the highest values observed for N719 dye.
AB - A nanopatterning technique using nanostamps that provides a facile process to create a nature-inspired moth-eye structure achieving high transmittance in the visible range as well as a self-cleaning effect is reported. Commercially available perfluoropolyether (PFPE) and NOA63 as the mold resin and second replica mold material, respectively, play an important role in fabricating the structure. The structure is found to increase transmittance up to 82% at 540 nm and contact angle up to 150°, representing superhydrophobicity even without the aid of a fluorinated self-assembled monolayer (SAM) coating. The resulting solid-state dye-sensitized solar cells (ssDSSCs) with moth-eye structures show enhancement of efficiency to 7.3% at 100 mW cm-2, which is among the highest values reported to date for N719 dye-based ssDSSCs. This nature-inspired nanopatterning process could be used for improving light harvesting in any type of photovoltaic cell, and it produces superhydrophobic surfaces, which in turn lead to self-cleaning for long-term stability. A nature-inspired moth-eye structure is created via a facile nanopatterning technique using polymeric nanostamps. The resulting solid-state dye-sensitized solar cells show enhancement of efficiency to 7.3% at 100 mW cm-2, which is one of the highest values observed for N719 dye.
UR - http://www.scopus.com/inward/record.url?scp=84894476452&partnerID=8YFLogxK
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U2 - 10.1002/aenm.201300632
DO - 10.1002/aenm.201300632
M3 - Article
AN - SCOPUS:84894476452
VL - 4
JO - Advanced Energy Materials
JF - Advanced Energy Materials
SN - 1614-6832
IS - 3
M1 - 1300632
ER -