Klein, M., Wang, Y., Tian, J., Ha, S. T., Paniagua‐Domínguez, R., Kuznetsov, A. I., Adamo, G., & Soci, C. (2022). Polarization‐Tunable Perovskite Light‐Emitting Metatransistor. Advanced Materials, 35(1). Portico. https://doi.org/10.1002/adma.202207317
Abstract:
Emerging immersive visual communication technologies require light sources with complex functionality for dynamic control of polarization, directivity, wavefront, spectrum, and intensity of light. Currently, this is mostly achieved by free space bulk optic elements, limiting the adoption of these technologies. Flat optics based on artificially structured metasurfaces that operate at the sub‐wavelength scale are a viable solution, however, their integration into electrically driven devices remains challenging. Here, a radically new approach to monolithic integration of a dielectric metasurface into a perovskite light‐emitting transistor is demonstrated. It is shown that nanogratings directly structured on top of the transistor channel yield an 8‐fold increase of electroluminescence intensity and dynamic tunability of polarization. This new light‐emitting metatransistor device concept opens unlimited opportunities for light management strategies based on metasurface design and integration.
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Funding Info:
This research / project is supported by the A*STAR - AME Programmatic
Grant Reference no. : A18A7b0058
This research / project is supported by the Ministry of Education (MOE) - Tier 3
Grant Reference no. : MOE2016-T3-1-006
This research / project is supported by the A*STAR - MTC Programmatic
Grant Reference no. : M21J9b0085
Description:
This is the peer reviewed version of the following article: Klein, M., Wang, Y., Tian, J., Ha, S. T., Paniagua‐Domínguez, R., Kuznetsov, A. I., Adamo, G., & Soci, C. (2022). Polarization‐Tunable Perovskite Light‐Emitting Metatransistor. Advanced Materials, 35(1). Portico. https://doi.org/10.1002/adma.202207317, which has been published in final form at doi.org/10.1002/adma.202207317. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.