TY - JOUR

T1 - Partial self-healing flexible light-emitting diode based on InGaN/GaN microwires

AU - Kochetkov , F.M.

AU - Kolesina , D.E.

AU - Мирошниченко, Анна Сергеевна

AU - Дерябин, Константин Валерьевич

AU - Kapoor , A.

AU - Krasnikov , D.

AU - Nasibulin , A.

AU - Eymery , J.

AU - Durand , C.

AU - Tchernycheva , M.

AU - Мухин, Иван Сергеевич

AU - Исламова, Регина Маратовна

PY - 2025/12/1

Y1 - 2025/12/1

N2 - Self-healing materials are promising for novel applications in next-generation displays. In this study, the first implementation of self-healing light-emitting devices based on an array of III–nitride microwires is demonstrated. The novel design integrates blue-emitting core–shell InGaN/GaN microwires embedded in a typical polydimethylsiloxane matrix with flexible electrodes. The electrodes are composed of aerosol-deposited single-walled carbon nanotube pads on a self-healing silicone based on “siloxane equilibrium”. Self-healing light-emitting diodes are able to partially restore their functionality after full mechanical damage (cross-cut) in terms of electrical and light-emitting properties. Additionally, the electrical stability is confirmed by bending tests of the self-healing electrode and device as well: the SWCNT-based electrode healed at 100 °C remains stable at ≈3.1 mA up to 1000 cycles, which confirmed its mechanical stability under cyclic bending. Such damage-resilient LEDs represent a significant step towards robust and long-lasting flexible optoelectronic devices that are resistant to mechanical impacts.

AB - Self-healing materials are promising for novel applications in next-generation displays. In this study, the first implementation of self-healing light-emitting devices based on an array of III–nitride microwires is demonstrated. The novel design integrates blue-emitting core–shell InGaN/GaN microwires embedded in a typical polydimethylsiloxane matrix with flexible electrodes. The electrodes are composed of aerosol-deposited single-walled carbon nanotube pads on a self-healing silicone based on “siloxane equilibrium”. Self-healing light-emitting diodes are able to partially restore their functionality after full mechanical damage (cross-cut) in terms of electrical and light-emitting properties. Additionally, the electrical stability is confirmed by bending tests of the self-healing electrode and device as well: the SWCNT-based electrode healed at 100 °C remains stable at ≈3.1 mA up to 1000 cycles, which confirmed its mechanical stability under cyclic bending. Such damage-resilient LEDs represent a significant step towards robust and long-lasting flexible optoelectronic devices that are resistant to mechanical impacts.

UR - https://www.mendeley.com/catalogue/bace34da-fc54-38f4-91ec-cd31bb72d5c6/

U2 - 10.1039/d5tc03328d

DO - 10.1039/d5tc03328d

M3 - Article

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

SN - 2050-7526

ER -