Details

Autor(en) / Beteiligte

• Liu, Zhifang
• Sun, Yilin
• Cao, Huaqiang
• Xie, Dan
• Li, Wei
• Wang, Jiaou
• Cheetham, Anthony K.

Titel

Unzipping of black phosphorus to form zigzag-phosphorene nanobelts

Ist Teil von

• Nature communications, 2020-08, Vol.11 (1), p.1-10, Article 3917

Ort / Verlag

London: Nature Publishing Group

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Abstract Phosphorene, monolayer or few-layer black phosphorus, exhibits fascinating anisotropic properties and shows interesting semiconducting behavior. The synthesis of phosphorene nanosheets is still a hot topic, including the shaping of its two-dimensional structure into nanoribbons or nanobelts. Here we report electrochemical unzipping of single crystalline black phosphorus into zigzag-phosphorene nanobelts, as well as nanosheets and quantum dots, via an oxygen-driven mechanism. The experimental results agree well with our theoretical calculations. The calculation for the unzipping mechanism study suggests that interstitial oxygen-pairs are the critical intermediate species for generating zigzag-phosphorene nanobelts. Although phosphorene oxidation has been reported, lengthwise cutting is hitherto unreported. Our discovery of phosphorene cut upon oxidation represents a previously unknown mechanism for the formation of various dimensions of phosphorene nanostructures, especially zigzag-phosphorene nanobelts. It opens up a way for studying the quantum effects and electronic properties of zigzag-phosphorene nanobelts.