Low-dimensional organic semiconductor crystals for advanced photonics

Abstract In the domain of information processing, communication technology, and computation, the utilization of photons as vectors for information is a critical innovation. Photonic integrated circuits (PICs) are specifically designed to control and transmit light, thereby facilitating the conveyance of data. The recent surge in interest in low-dimensional organic semiconductor crystals is attributed to their unique size-tunable properties and customizable physicochemical characteristics. These features position them as prime candidates for constructing the next generation of high-performance optoelectronic devices. The discourse presented elaborates on the progress in four pivotal areas concerning low-dimensional organic semiconductor crystals: optical generation, optical transportation, optical signal conversion and optical detection. These facets are integral to PICs because they underpin the fundamental mechanisms through which information is transmitted and manipulated via photons. Despite the promising attributes associated with these low-dimensional organic semiconductors, there remain considerable challenges to integrating these materials into the photonic constituents of PICs in a manner that is both effective and scalable. The text culminates with a concise summary and a forward-looking perspective on the potential applications and future development of low-dimensional organic semiconductor crystals within the sphere of advanced photonics. This outlook considers ongoing research and the anticipated breakthroughs that could further enhance the role of these materials in the evolution of photonic technologies.