Lithographical Fabrication of Organic Single Crystal Arrays by Area Selective Growth and Solvent Vapor Annealing.

Miniaturized organic single crystal arrays that addressed by reading-out circuits are crucial for high performance and high-level integration organic electronics. Here, we report a lithography compatible strategy to fabricate organic single crystal arrays via area selective growth and solvent vapor annealing. The organic semiconducting molecules can first selectively grow on photographically patterned drain-source electrodes, forming ordered amorphous aggregates that can further be converted to discrete single crystal array by solvent vapor annealing. This strategy can be applied to self-align the micro-sized organic single crystals on pre-designed locations. With the method, suppression of cross-talk among devices, OFET and basic logic gate arrays with reading-out electrodes are further demonstrated.