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Room‐Temperature Intercalation–Deintercalation Strategy Towards VO 2 (B) Single Layers with Atomic Thickness
Author(s) -
Liu Liang,
Yao Tao,
Tan Xiaogang,
Liu Qinghua,
Wang Zhiqiang,
Shen Dacheng,
Sun Zhihu,
Wei Shiqiang,
Xie Yi
Publication year - 2012
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201201552
Subject(s) - intercalation (chemistry) , exfoliation joint , lattice (music) , photovoltaics , covalent bond , materials science , band gap , crystallography , nanotechnology , chemical physics , graphene , condensed matter physics , chemistry , optoelectronics , inorganic chemistry , physics , organic chemistry , photovoltaic system , ecology , acoustics , biology
Exfoliation of layered bulk VO 2 (B) with strong covalent bonding by a convenient room‐temperature intercalation‐deintercalation strategy is proposed to obtain ultrathin sheets with atomic thickness of ∼0.62 nm. This VO 2 (B) single layer possesses a more symmetric atomic structure with slight lattice expansion that widens the band gap Energy by ΔEg = 0.19 eV, providing more possibilities for energy‐level engineering in photovoltaics.
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