Low temperature electrical transport and photoresponsive properties of H-doped MoO₃ nanosheets

TY - JOUR

T1 - Low temperature electrical transport and photoresponsive properties of H-doped MoO3 nanosheets

AU - Yang, Juehan

AU - Lu, Fangyuan

AU - Li, Yan

AU - Yang, Shengxue

AU - Li, Renxiong

AU - Huo, Nengjie

AU - Fan, Chao

AU - Wei, Zhongming

AU - Li, Jingbo

AU - Li, Shu-Shen

PY - 2014/2/14

Y1 - 2014/2/14

N2 - α-MoO3 nanosheets were synthesized by a water bath method using ammonium heptamolybdenum tetrahydrate and concentrated nitric acid as precursors. Hydrogen was doped by a chemical reduction in aqueous acidic media, with hydrazine hydrate used as the reducing agent. Temperature dependent resistance showed that the low temperature Peierls transition of H-doped MoO3 nanosheets breaks below 50 K, and its resistance is satisfied at temperatures lower than 37 K (37-10 K). This phenomenon was induced by thermal disturbance and the dominance of defects in low temperature transport, which was confirmed by photoresponse measurements taken before and after the break of the new phase.

AB - α-MoO3 nanosheets were synthesized by a water bath method using ammonium heptamolybdenum tetrahydrate and concentrated nitric acid as precursors. Hydrogen was doped by a chemical reduction in aqueous acidic media, with hydrazine hydrate used as the reducing agent. Temperature dependent resistance showed that the low temperature Peierls transition of H-doped MoO3 nanosheets breaks below 50 K, and its resistance is satisfied at temperatures lower than 37 K (37-10 K). This phenomenon was induced by thermal disturbance and the dominance of defects in low temperature transport, which was confirmed by photoresponse measurements taken before and after the break of the new phase.

U2 - 10.1039/c3tc32142h

DO - 10.1039/c3tc32142h

M3 - Journal article

SN - 2050-7526

VL - 2

SP - 1034

EP - 1040

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 6

ER -