Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows
Effective management of heat transfer, such as conduction and radiation, through glass windows is one of the most challenging issues in smart window technology. In this work, reduced Graphene Oxide (rGO) thin films of varying thicknesses are fabricated onto Fluorine-doped Tin Oxide (FTO) glass via e...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/141934 |
| _version_ | 1824453647415640064 |
|---|---|
| author | Yeo, Loo Pin Nguyen, Tam Duy Ling, Han Lee, Ying Mandler, Daniel Magdassi, Shlomo Tok, Alfred Iing Yoong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Yeo, Loo Pin Nguyen, Tam Duy Ling, Han Lee, Ying Mandler, Daniel Magdassi, Shlomo Tok, Alfred Iing Yoong |
| author_sort | Yeo, Loo Pin |
| collection | NTU |
| description | Effective management of heat transfer, such as conduction and radiation, through glass windows is one of the most challenging issues in smart window technology. In this work, reduced Graphene Oxide (rGO) thin films of varying thicknesses are fabricated onto Fluorine-doped Tin Oxide (FTO) glass via electrophoretic deposition technique. The sample thicknesses increase with increasing number of deposition cycles (5, 10, 20 cycles). It is hypothesized that such rGO thin films, which are well-known for their high thermal conductivities, can conduct heat away laterally towards heat sinks and reduce near-infrared (NIR) transmittance through them, thus effectively slowing down the temperature increment indoors. The performance of rGO/FTO in reducing indoor temperatures is investigated with a solar simulator and a UV-Vis-NIR spectrophotometer. The 20-cycles rGO thin films showed 30% more NIR blocked at 1000 nm as compared to clean FTO, as well as the least temperature increment of 0.57 °C following 30 min of solar irradiation. Furthermore, the visible transmittance of the as-fabricated rGO films remain on par with commercial solar films, enabling up to 60% of visible light transmittance for optimal balance of transparency and heat reduction. These results suggest that the rGO thin films have great potential in blocking heat transfer and are highly recommended for smart window applications. |
| first_indexed | 2025-02-19T03:09:44Z |
| format | Journal Article |
| id | ntu-10356/141934 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:09:44Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1419342023-07-14T15:56:09Z Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows Yeo, Loo Pin Nguyen, Tam Duy Ling, Han Lee, Ying Mandler, Daniel Magdassi, Shlomo Tok, Alfred Iing Yoong School of Materials Science and Engineering Singapore-HUJ Alliance for Research and Enterprise Nanomaterials for Energy and Water Management Campus for Research Excellence and Technological Enterprise Engineering::Materials Electrophoretic Deposition Reduced Graphene Oxide Effective management of heat transfer, such as conduction and radiation, through glass windows is one of the most challenging issues in smart window technology. In this work, reduced Graphene Oxide (rGO) thin films of varying thicknesses are fabricated onto Fluorine-doped Tin Oxide (FTO) glass via electrophoretic deposition technique. The sample thicknesses increase with increasing number of deposition cycles (5, 10, 20 cycles). It is hypothesized that such rGO thin films, which are well-known for their high thermal conductivities, can conduct heat away laterally towards heat sinks and reduce near-infrared (NIR) transmittance through them, thus effectively slowing down the temperature increment indoors. The performance of rGO/FTO in reducing indoor temperatures is investigated with a solar simulator and a UV-Vis-NIR spectrophotometer. The 20-cycles rGO thin films showed 30% more NIR blocked at 1000 nm as compared to clean FTO, as well as the least temperature increment of 0.57 °C following 30 min of solar irradiation. Furthermore, the visible transmittance of the as-fabricated rGO films remain on par with commercial solar films, enabling up to 60% of visible light transmittance for optimal balance of transparency and heat reduction. These results suggest that the rGO thin films have great potential in blocking heat transfer and are highly recommended for smart window applications. NRF (Natl Research Foundation, S’pore) Published version 2020-06-12T01:50:25Z 2020-06-12T01:50:25Z 2019 Journal Article Yeo, L. P., Nguyen, T. D., Ling, H., Lee, Y., Mandler, D., Magdassi, S., & Tok, A. I. Y. (2019). Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows. Journal of Science: Advanced Materials and Devices, 4(2), 252-259. doi:10.1016/j.jsamd.2019.04.002 2468-2284 https://hdl.handle.net/10356/141934 10.1016/j.jsamd.2019.04.002 2-s2.0-85065908166 2 4 252 259 en Journal of Science: Advanced Materials and Devices © 2019 The Authors. Publishing services by Elsevier B.V. on behalf of Vietnam National University, Hanoi. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Engineering::Materials Electrophoretic Deposition Reduced Graphene Oxide Yeo, Loo Pin Nguyen, Tam Duy Ling, Han Lee, Ying Mandler, Daniel Magdassi, Shlomo Tok, Alfred Iing Yoong Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows |
| title | Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows |
| title_full | Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows |
| title_fullStr | Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows |
| title_full_unstemmed | Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows |
| title_short | Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows |
| title_sort | electrophoretic deposition of reduced graphene oxide thin films for reduction of cross sectional heat diffusion in glass windows |
| topic | Engineering::Materials Electrophoretic Deposition Reduced Graphene Oxide |
| url | https://hdl.handle.net/10356/141934 |
| work_keys_str_mv | AT yeoloopin electrophoreticdepositionofreducedgrapheneoxidethinfilmsforreductionofcrosssectionalheatdiffusioninglasswindows AT nguyentamduy electrophoreticdepositionofreducedgrapheneoxidethinfilmsforreductionofcrosssectionalheatdiffusioninglasswindows AT linghan electrophoreticdepositionofreducedgrapheneoxidethinfilmsforreductionofcrosssectionalheatdiffusioninglasswindows AT leeying electrophoreticdepositionofreducedgrapheneoxidethinfilmsforreductionofcrosssectionalheatdiffusioninglasswindows AT mandlerdaniel electrophoreticdepositionofreducedgrapheneoxidethinfilmsforreductionofcrosssectionalheatdiffusioninglasswindows AT magdassishlomo electrophoreticdepositionofreducedgrapheneoxidethinfilmsforreductionofcrosssectionalheatdiffusioninglasswindows AT tokalfrediingyoong electrophoreticdepositionofreducedgrapheneoxidethinfilmsforreductionofcrosssectionalheatdiffusioninglasswindows |