We have reported an evaporation-induced self-assembly technique that can enable the growth, alignment, and periodic patterning of organic 1D single-crystal nanowires (NWs)/micro-wires (MWs)at solid/liquid or liquid/liquid interface.However, most of the resulting single-crystals have limited growth length;moreover, their alignment density and precise positioningare difficult to accurately control, which is crucial for practical device applications.Recently, we developed an improved method of using photoresist as template for large-area growth of ultra-long organic micro/nanowire arrayswith controlled alignment density and position.The position and alignment density of micro/nanowires can be precisely controlled by the location and periodicity of photoresist, which can be readily tuned by photolithography.The MW arrays could span over the whole substrate with extremely high uniformity and reproducibility.High-performance photodetectors based on the organic MW arrays were constructed,verifying the great potential of the strategy for future high-performance, integrated organic crystal device applications.