Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cells
Past two decades have shown the unprecedentedly rapid emergence of dye-sensitized solar cells (DSSCs) that are efficient, inexpensive, and eco-friendly. However, structural studies of the internal solar cells have not made much progress because of the high cost and complexity of the fabrication. In...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
|
| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722009556 |
| _version_ | 1797947033903955968 |
|---|---|
| author | Sang-Hun Nam Jin-Hyo Boo |
| author_facet | Sang-Hun Nam Jin-Hyo Boo |
| author_sort | Sang-Hun Nam |
| collection | DOAJ |
| description | Past two decades have shown the unprecedentedly rapid emergence of dye-sensitized solar cells (DSSCs) that are efficient, inexpensive, and eco-friendly. However, structural studies of the internal solar cells have not made much progress because of the high cost and complexity of the fabrication. In this study, therefore, we designed and fabricated a moth-eye patterned TiO2 layer as a working electrode using a soft lithography method with polystyrene (PS) monolayer, and the moth-eye patterned TiO2 active layers were constructed using a polydimethylsiloxane (PDMS) stamp via inverse honeycomb patterning having various PS beads of 400, 800, 1200 and 1600 nm. For the 1600 nm patterned stamp, Jsc is higher for moth-eye patterned TiO2 (13.63 mA/cm2) than that for flat TiO2 (11.09 mA/cm2), which results in a higher power efficiency of 7.66% rather than 6.40%. This result found an increment of around 23% in current density and 20% in energy conversion efficiency, mainly because of greater light-harvesting effect by its structural anti-reflective property. |
| first_indexed | 2024-04-10T21:21:27Z |
| format | Article |
| id | doaj.art-26c28c76dbd34cc0a103fd25dcf02f7a |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-10T21:21:27Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-26c28c76dbd34cc0a103fd25dcf02f7a2023-01-20T04:24:58ZengElsevierEnergy Reports2352-48472022-11-01898105Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cellsSang-Hun Nam0Jin-Hyo Boo1Convergence Research Center for Energy and Environmental Science, Sungkyunkwan University, Suwon 16419, Republic of KoreaDepartment of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea; Corresponding author.Past two decades have shown the unprecedentedly rapid emergence of dye-sensitized solar cells (DSSCs) that are efficient, inexpensive, and eco-friendly. However, structural studies of the internal solar cells have not made much progress because of the high cost and complexity of the fabrication. In this study, therefore, we designed and fabricated a moth-eye patterned TiO2 layer as a working electrode using a soft lithography method with polystyrene (PS) monolayer, and the moth-eye patterned TiO2 active layers were constructed using a polydimethylsiloxane (PDMS) stamp via inverse honeycomb patterning having various PS beads of 400, 800, 1200 and 1600 nm. For the 1600 nm patterned stamp, Jsc is higher for moth-eye patterned TiO2 (13.63 mA/cm2) than that for flat TiO2 (11.09 mA/cm2), which results in a higher power efficiency of 7.66% rather than 6.40%. This result found an increment of around 23% in current density and 20% in energy conversion efficiency, mainly because of greater light-harvesting effect by its structural anti-reflective property.http://www.sciencedirect.com/science/article/pii/S2352484722009556Moth-eye patterned TiO2Soft lithographyPolystyrene bead and PDMS stampDye-sensitized solar cellLight harvesting |
| spellingShingle | Sang-Hun Nam Jin-Hyo Boo Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cells Energy Reports Moth-eye patterned TiO2 Soft lithography Polystyrene bead and PDMS stamp Dye-sensitized solar cell Light harvesting |
| title | Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cells |
| title_full | Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cells |
| title_fullStr | Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cells |
| title_full_unstemmed | Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cells |
| title_short | Fabrication of moth-eye patterned TiO2 active layers for high energy efficiency and current density of dye-sensitized solar cells |
| title_sort | fabrication of moth eye patterned tio2 active layers for high energy efficiency and current density of dye sensitized solar cells |
| topic | Moth-eye patterned TiO2 Soft lithography Polystyrene bead and PDMS stamp Dye-sensitized solar cell Light harvesting |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722009556 |
| work_keys_str_mv | AT sanghunnam fabricationofmotheyepatternedtio2activelayersforhighenergyefficiencyandcurrentdensityofdyesensitizedsolarcells AT jinhyoboo fabricationofmotheyepatternedtio2activelayersforhighenergyefficiencyandcurrentdensityofdyesensitizedsolarcells |