The preparation, photodegradation, and modification of silicon nanosheets (SiNS) and the selective functionalization and decomposition of mixed germanium/silicon nanosheets (Ge/SiNS) have been studied. Water-free approaches to SiNS revealed the necessity of water in their preparation. Photooxidation occurs when SiNS are exposed to UV light in oxygen-containing atmospheres, while amorphization occurs under argon. Selective removal of silicon from Ge/SiNS was achieved. Finally, functionalized SiNS with exceptional nonlinear optical properties were prepared.
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The preparation, photodegradation, and modification of silicon nanosheets (SiNS) and the selective functionalization and decomposition of mixed germanium/silicon nanosheets (Ge/SiNS) have been studied. Water-free approaches to SiNS revealed the necessity of water in their preparation. Photooxidation occurs when SiNS are exposed to UV light in oxygen-containing atmospheres, while amorphization occurs under argon. Selective removal of silicon from Ge/SiNS was achieved. Finally, functionalized SiNS...
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