Development of perovskite-based light emitting diodes with improved stability
All inorganic quantum dots due to their unique characteristics have narrow emission spectrum and size dependant emission wavelength. Perovskite nanocrystal are widely used in optoelectronic materials but the instability caused by the surface ions obstructs their application therefore, we used method...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2019
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| Online Access: | http://hdl.handle.net/10356/77763 |
| _version_ | 1811686537108127744 |
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| author | Bala Saravana Nambiar Balan |
| author2 | Yong Ken Tye |
| author_facet | Yong Ken Tye Bala Saravana Nambiar Balan |
| author_sort | Bala Saravana Nambiar Balan |
| collection | NTU |
| description | All inorganic quantum dots due to their unique characteristics have narrow emission spectrum and size dependant emission wavelength. Perovskite nanocrystal are widely used in optoelectronic materials but the instability caused by the surface ions obstructs their application therefore, we used methods such as microwave irradiation and hot injection method to determine which was the best method to use in order to get a higher photoluminescence. We also used different surface ligands such as oleylamine and APTES to see which has a better PLQY. We also used oleylamine and APTES to test for thermal stability to determine which has perovskite has better stability or photoluminescence. And have concluded that using APTES as a surface ligand provides better stability but as the temperature increases the photoluminescence degrades as temperature increases therefore, different ligands is used for different application. |
| first_indexed | 2024-10-01T05:01:59Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/77763 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:01:59Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/777632023-07-07T16:18:26Z Development of perovskite-based light emitting diodes with improved stability Bala Saravana Nambiar Balan Yong Ken Tye School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering All inorganic quantum dots due to their unique characteristics have narrow emission spectrum and size dependant emission wavelength. Perovskite nanocrystal are widely used in optoelectronic materials but the instability caused by the surface ions obstructs their application therefore, we used methods such as microwave irradiation and hot injection method to determine which was the best method to use in order to get a higher photoluminescence. We also used different surface ligands such as oleylamine and APTES to see which has a better PLQY. We also used oleylamine and APTES to test for thermal stability to determine which has perovskite has better stability or photoluminescence. And have concluded that using APTES as a surface ligand provides better stability but as the temperature increases the photoluminescence degrades as temperature increases therefore, different ligands is used for different application. Bachelor of Engineering (Electrical and Electronic Engineering) 2019-06-06T03:59:59Z 2019-06-06T03:59:59Z 2019 Final Year Project (FYP) http://hdl.handle.net/10356/77763 en Nanyang Technological University 56 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Bala Saravana Nambiar Balan Development of perovskite-based light emitting diodes with improved stability |
| title | Development of perovskite-based light emitting diodes with improved stability |
| title_full | Development of perovskite-based light emitting diodes with improved stability |
| title_fullStr | Development of perovskite-based light emitting diodes with improved stability |
| title_full_unstemmed | Development of perovskite-based light emitting diodes with improved stability |
| title_short | Development of perovskite-based light emitting diodes with improved stability |
| title_sort | development of perovskite based light emitting diodes with improved stability |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | http://hdl.handle.net/10356/77763 |
| work_keys_str_mv | AT balasaravananambiarbalan developmentofperovskitebasedlightemittingdiodeswithimprovedstability |