Flexible optoelectronics based on nitride nanostructures (Conference Presentation)

Maria Tchernycheva; Nan Guan; Martina Morassi; Lorenzo Mancini; Joël Eymery; Christophe Durand; Hezhi Zhang; Lu Lu; Noelle Gogneau; Ali Madouri; Ludovic Largeau; Jean-Christophe Harmand

doi:10.1117/12.2289744

14 March 2018 Flexible optoelectronics based on nitride nanostructures (Conference Presentation)

Maria Tchernycheva, Nan Guan, Martina Morassi, Lorenzo Mancini, Joël Eymery, Christophe Durand, Hezhi Zhang, Lu Lu, Noelle Gogneau, Ali Madouri, Ludovic Largeau, Jean-Christophe Harmand

Author Affiliations +

Proceedings Volume 10532, Gallium Nitride Materials and Devices XIII; 105321T (2018) https://doi.org/10.1117/12.2289744
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

“Photonics Multiannual Strategic Roadmap 2014-2020” mentions flexible electronics, light sources, displays, sensors and solar cells as key emerging technologies with a high expected growth of the market share. Technologies based on organic semiconductors still suffer from a short lifetime and low efficacy as compared to their inorganic counterparts. To make a flexible device from inorganic semiconductors one should shrink the size of the active elements and to integrate them on mechanically-flexible substrates. This can be achieved using control-by-design nanowires. In this work, we address the growth of nitride nanowires on novel substrates and the fabrication and characterization of flexible devices based on nitride nanowires. First, we will discuss the epitaxy of GaN nanowires on graphene-on-SiO2 substrates. We show that without any catalyst or intermediate layer, the nanowires grow on graphene with an excellent selectivity compared to the uncovered SiO2 surface. Taking advantage of this selectivity, we demonstrate that organized arrays of nanowires can be synthesized by structuring the graphene layer. Next, we will discuss the approach for nanowire lift-off, transfer into polymer-embedded membranes and flexible contacting. The realization and characterization of flexible light sources, photodetectors and piezogenerators will be presented.

Conference Presentation

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Maria Tchernycheva, Nan Guan, Martina Morassi, Lorenzo Mancini, Joël Eymery, Christophe Durand, Hezhi Zhang, Lu Lu, Noelle Gogneau, Ali Madouri, Ludovic Largeau, and Jean-Christophe Harmand "Flexible optoelectronics based on nitride nanostructures (Conference Presentation)", Proc. SPIE 10532, Gallium Nitride Materials and Devices XIII, 105321T (14 March 2018); https://doi.org/10.1117/12.2289744

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KEYWORDS

Nanowires

Graphene

Nanostructures

Light sources

Photodetectors

Flexible circuits

Light emitting diodes

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