تقرير
Direct Linearly-Polarised Electroluminescence from Perovskite Nanoplatelet Superlattices
| العنوان: | Direct Linearly-Polarised Electroluminescence from Perovskite Nanoplatelet Superlattices |
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| المؤلفون: | 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. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Physics - Optics, Condensed Matter - Materials Science |
| الوصف: | 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. Comment: 26 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1038/s41566-024-01398-y |
| URL الوصول: | http://arxiv.org/abs/2302.03582 |
| رقم الأكسشن: | edsarx.2302.03582 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1038/s41566-024-01398-y |
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