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ACS Appl Mater Interfaces. 2018 Oct 10;10(40):33773-33778. doi: 10.1021/acsami.8b13369. Epub 2018 Sep 27.

Morphology-Retained Photoconversion Reaction of Anthracene Single Crystal: A New Approach for Organic Heterostructures.

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Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Namgu , Pohang 790-784 , Korea.
Center for Artificial Low-Dimensional Electronic Systems , Institute for Basic Science (IBS) , 77 Cheongam-Ro , Pohang 790-784 , Korea.


Morphology-retained solid-state photoconversion of anthracene (AN) to 9,10-anthraquinone (PC-ANQ) and dipara-anthracene (PC-DPA) was accomplished by irradiating mercury lamp light to plate-shaped AN single crystal in oxygen and argon atmosphere, respectively. The photoconverted crystals retained the original plate shape morphology of the starting AN crystal, whereas the emission profile and crystal structure were significantly changed. The electrical conductivity of PC-ANQ crystal is 5 orders of magnitude greater than that of the starting AN crystal, whereas the PC-DPA crystal exhibits a decreased conductivity. The AN/PC-ANQ/PC-DPA heterostructures with smooth interface were successfully obtained by inducing the photoconversion only at the desired area.


area-selective photoreaction; molecular rearrangement; morphology-retained photoreaction; organic heterostructure; solid-state photoconversion


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