Solution-Grown Organic Single-Crystalline p-n Junctions with Ambipolar Charge Transport

Graphical Organic single-crystalline p-n junctions are grown from mixed solutions. First, C 60 crystals (n-type) form and, subsequently, C8-BTBT crystals (p-type) nucleate heterogeneously on the C 60 crystals. Both crystals continue to grow simultaneously into single-crystalline p-n junctions that exhibit ambipolar charge transport characteristics. This work provides a platform to study organic single-crystalline p-n junctions.