Project R-14280

ORGanic UPconversion device for SWIR imaging (ORGUP) (Research)

Short-wave infrared (SWIR) imaging is a powerful tool to access and visualize the composition of (bio)materials contact-free and in real time. It can be used for example for in-vivo deep-tissue bio- imaging as well as for the inspection and quality assurance of manufacturing processes, including agriculture, pharmaceutics, chemicals, photovoltaics, wafers, metals and glasses. The global SWIR market is estimated to 213 million USD for 2022 and predicted to increase by 72% until 2028. However, the complex and costly manufacturing of commercial SWIR imaging prohibits consumers and low-end applications from benefiting from its vast application potential. Within ORGUP, we propose organic upconversion devices as an attractive low-cost alternative. They convert the invisible, infrared image into a visible image, being then captured by a low-cost commercial camera or sensor. However, so far, such devices have failed to provide the relevant SWIR sensitivity above 1100nm, i.e. the silicon cut-off. The goal of ORGUP is to develop and showcase for the first time high- quality, organic SWIR imaging with a sensitivity up to 1500nm and an upconversion yield of 30% - at a low cost, while avoiding the use of toxic elements. Two industrially relevant demonstrators will prove reliable and durable mono- and multispectral vision at high resolution and contrast. We will combine in-house, recently developed ultra-low gap organic semiconductors with unique know-how in organic near-infrared opto-electronics and stacked, state-of-the-art organic light emitting diodes. Selectivity for specific SWIR wavelengths will be achieved by embedding the organic stack into optically amplifying and spectrally selective microcavity structures. As research and development of the proposed type of organic upconversion devices is relatively new, yet with confirmed interest of market leaders for optical solutions, we expect to create strategic IP and develop a path to marketing and commercialisation.

01 December 2023 - 31 May 2025