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Dr. Tao Wei Malte Kohring Dr. Muqing Chen Prof. Dr. Shangfeng Yang Prof. Dr. Heiko B. Weber Dr. Frank Hauke Prof. Dr. Andreas Hirsch 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(14):5651-5655
Patterned graphene-functionalization with a tunable degree of functionalization can tailor the properties of graphene. Here, we present a new reductive functionalization approach combined with lithography rendering patterned graphene-functionalization easily accessible. Two types of covalent patterning of graphene were prepared and their structures were unambiguously characterized by statistical Raman spectroscopy together with scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM-EDS). The reversible defunctionalization processes, as revealed by temperature-dependent Raman spectroscopy, enable the possibility to accurately modulate the degree of functionalization by annealing. This allows for the management of chemical information through complete write/store/erase cycles. Based on our strategy, controllable and efficient patterning graphene-functionalization is no longer a challenge and facilitates the development of graphene-based devices. 相似文献
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