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2D molecular crystals (2DMCs) have attracted considerable attention because of their unique optoelectronic properties and potential applications. Taking advantage of the solution processability of organic semiconductors, solution self‐assembly is considered an effective way to grow large‐area 2DMCs. However, this route is largely blocked because a precise molecular design towards 2DMCs is missing...
In article number 1901437, Rongjin Li and co‐workers propose a “phase separation” molecular‐design strategy toward large‐area two‐dimensional molecular crystals (2DMCs). Millimeter‐sized monolayer and few‐layered 2DMCs are obtained according to the design by solution self‐assembly. Organic phototransistors based on the 2DMCs show unprecedented photosensitivity up to 2.58 × 107.
Ambipolar organic field‐effect transistors (OFETs) are vital for the construction of high‐performance all‐organic digital circuits. The bilayer p–n junction structure, which is composed of separate layers of p‐ and n‐type organic semiconductors, is considered a promising way to realize well‐balanced ambipolar charge transport. However, this approach suffers from severely reduced mobility due to the...
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