LAUSR

Flexible optoelectronics has emerged as an outstanding platform to pave the road toward vanguard technology advancements. As compared to conventional rigid substrates, a flexible technology enables mechanical deformation while maintaining stable performance. The advantages include not only the development to novel applications, but also the implementation of a wearable technology directly in contact with a curved surface. Here we show the monolithic integration of a perovskite-based optical waveguide amplifier, together with a photodetector on a nanocellulose substrate to demonstrate the feasibility of a stretchable signal manipulation and receptor system fabricated on a biodegradable material. We develop an integrated optical amplifier-photodetector in which we exploit the photocurrent that is generated in the organic-inorganic lead halide perovskite under an applied bias. Such photocurrent does not minimally perturb the amplifier operation and is used to monitor the light signal propagating along the waveguide, opening a broad range of applications for example to regulate the operation temperature.