UV-A Flexible LEDs Based on Core-Shell GaN/AlGaN Quantum Well Microwires.

Autor: Amador-Mendez N; Centre de Nanosciences et de Nanotechnologies (C2N), UMR 9001 CNRS, Univ. Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France., Kochetkov FM; Alferov University, Khlopina, 8/3, 194021 Saint Petersburg, Russia.; Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251 Saint Petersburg, Russia., Hernandez R; Centre de Nanosciences et de Nanotechnologies (C2N), UMR 9001 CNRS, Univ. Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France., Neplokh V; Alferov University, Khlopina, 8/3, 194021 Saint Petersburg, Russia.; Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251 Saint Petersburg, Russia., Grenier V; Univ. Grenoble Alpes, CEA, Grenoble INP, IRIG, PHELIQS, NPSC, 38000 Grenoble, France., Finot S; Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000 Grenoble, France., Valera L; Univ. Grenoble Alpes, CEA, Grenoble INP, IRIG, PHELIQS, NPSC, 38000 Grenoble, France., Duraz J; Centre de Nanosciences et de Nanotechnologies (C2N), UMR 9001 CNRS, Univ. Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France., Fominykh N; International Laboratory of Quantum Optoelectronics, HSE University, St. Petersburg 190008, Russia., Parshina EK; St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia., Deriabin KV; St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia., Islamova RM; St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia., Herth E; Centre de Nanosciences et de Nanotechnologies (C2N), UMR 9001 CNRS, Univ. Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France., Bouchoule S; Centre de Nanosciences et de Nanotechnologies (C2N), UMR 9001 CNRS, Univ. Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France., Julien F; Centre de Nanosciences et de Nanotechnologies (C2N), UMR 9001 CNRS, Univ. Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France., Abraham M; Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala 695019, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India., Das S; Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala 695019, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India., Jacopin G; Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000 Grenoble, France., Krasnikov DV; Kemerovo State University, Krasnaya Str. 6, Kemerovo 650000, Russia., Nasibulin A; Kemerovo State University, Krasnaya Str. 6, Kemerovo 650000, Russia., Eymery J; Univ. Grenoble Alpes, CEA, Grenoble INP, IRIG, PHELIQS, NPSC, 38000 Grenoble, France., Durand C; Univ. Grenoble Alpes, CEA, Grenoble INP, IRIG, PHELIQS, NPSC, 38000 Grenoble, France., Mukhin IS; Alferov University, Khlopina, 8/3, 194021 Saint Petersburg, Russia.; Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251 Saint Petersburg, Russia., Tchernycheva M; Centre de Nanosciences et de Nanotechnologies (C2N), UMR 9001 CNRS, Univ. Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France.
Jazyk: angličtina
Zdroj: ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2024 Sep 25; Vol. 16 (38), pp. 51000-51009. Date of Electronic Publication: 2024 Sep 11.
DOI: 10.1021/acsami.4c06181
Abstrakt: Nanostructured ultraviolet (UV) light sources represent a growing research field in view of their potential applications in wearable optoelectronics or medical treatment devices. In this work, we report the demonstration of the first flexible UV-A light emitting diode (LED) based on AlGaN/GaN core-shell microwires. The device is based on a composite microwire/poly(dimethylsiloxane) (PDMS) membrane with flexible transparent electrodes. The electrode transparency in the UV range is optimized: namely, we demonstrate that single-walled carbon nanotube electrodes provide a stable electrical contact to the membrane with high transparency (70% at 350 nm). The flexible UV-A membrane demonstrating electroluminescence around 345 nm is further applied to excite Zn-Ir-BipyPDMS luminophores: the UV-A LED is combined with the elastic luminophore-containing membrane to produce a visible amber emission from 520 to 650 nm. The obtained results pave the way for flexible inorganic light-emitting diodes to be employed in sensing, detection of fluorescent labels, or light therapy.
Databáze: MEDLINE
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