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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2302.03582 |
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| _version_ | 1866910579686375424 |
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| author | Ye, Junzhi Ren, Aobo Dai, Linjie Baikie, Tomi Guo, Renjun Pal, Debapriya Gorgon, Sebastian Heger, Julian E. Huang, Junyang Sun, Yuqi Arul, Rakesh Grimaldi, Gianluca Zhang, Kaiwen Shamsi, Javad Huang, Yi-Teng Wang, Hao Wu, Jiang Koenderink, A. Femius Murciano, Laura Torrente Schwartzkopf, Matthias Roth, Stephen V. Muller-Buschbaum, Peter Baumberg, Jeremy J. Stranks, Samuel D. Greenham, Neil C. Polavarapu, Lakshminarayana Zhang, Wei Rao, Akshay Hoye, Robert L. Z. |
| author_facet | Ye, Junzhi Ren, Aobo Dai, Linjie Baikie, Tomi Guo, Renjun Pal, Debapriya Gorgon, Sebastian Heger, Julian E. Huang, Junyang Sun, Yuqi Arul, Rakesh Grimaldi, Gianluca Zhang, Kaiwen Shamsi, Javad Huang, Yi-Teng Wang, Hao Wu, Jiang Koenderink, A. Femius Murciano, Laura Torrente Schwartzkopf, Matthias Roth, Stephen V. Muller-Buschbaum, Peter Baumberg, Jeremy J. Stranks, Samuel D. Greenham, Neil C. Polavarapu, Lakshminarayana Zhang, Wei Rao, Akshay Hoye, Robert L. Z. |
| contents | Polarised light is critical for a wide range of applications, but is usually generated by filtering unpolarised light, which leads to significant energy losses and requires additional optics. Herein, the direct emission of linearly-polarised light is achieved from light-emitting diodes (LEDs) made of CsPbI3 perovskite nanoplatelet superlattices. Through use of solvents with different vapour pressures, the self-assembly of perovskite nanoplatelets is achieved to enable fine control over the orientation (either face-up or edge-up) and therefore the transition dipole moment. As a result of the highly-uniform alignment of the nanoplatelets, as well as their strong quantum and dielectric confinement, large exciton fine-structure splitting is achieved at the film level, leading to pure-red LEDs exhibiting a high degree of linear polarisation of 74.4% without any photonic structures. This work unveils the possibilities of perovskite nanoplatelets as a highly promising source of linearly-polarised electroluminescence, opening up the development of next-generation 3D displays and optical communications from this highly versatile, solution-processable system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2302_03582 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Direct Linearly-Polarised Electroluminescence from Perovskite Nanoplatelet Superlattices Ye, Junzhi Ren, Aobo Dai, Linjie Baikie, Tomi Guo, Renjun Pal, Debapriya Gorgon, Sebastian Heger, Julian E. Huang, Junyang Sun, Yuqi Arul, Rakesh Grimaldi, Gianluca Zhang, Kaiwen Shamsi, Javad Huang, Yi-Teng Wang, Hao Wu, Jiang Koenderink, A. Femius Murciano, Laura Torrente Schwartzkopf, Matthias Roth, Stephen V. Muller-Buschbaum, Peter Baumberg, Jeremy J. Stranks, Samuel D. Greenham, Neil C. Polavarapu, Lakshminarayana Zhang, Wei Rao, Akshay Hoye, Robert L. Z. Optics Materials Science Polarised light is critical for a wide range of applications, but is usually generated by filtering unpolarised light, which leads to significant energy losses and requires additional optics. Herein, the direct emission of linearly-polarised light is achieved from light-emitting diodes (LEDs) made of CsPbI3 perovskite nanoplatelet superlattices. Through use of solvents with different vapour pressures, the self-assembly of perovskite nanoplatelets is achieved to enable fine control over the orientation (either face-up or edge-up) and therefore the transition dipole moment. As a result of the highly-uniform alignment of the nanoplatelets, as well as their strong quantum and dielectric confinement, large exciton fine-structure splitting is achieved at the film level, leading to pure-red LEDs exhibiting a high degree of linear polarisation of 74.4% without any photonic structures. This work unveils the possibilities of perovskite nanoplatelets as a highly promising source of linearly-polarised electroluminescence, opening up the development of next-generation 3D displays and optical communications from this highly versatile, solution-processable system. |
| title | Direct Linearly-Polarised Electroluminescence from Perovskite Nanoplatelet Superlattices |
| topic | Optics Materials Science |
| url | https://arxiv.org/abs/2302.03582 |