Tunable Electronic Transport Properties of 2D Layered Double Hydroxide Crystalline Microsheets with Varied Chemical Compositions

Abstract

Transistors based on layered double hydroxides (LDH) single microcrystal are fabricated, whose conductivity of LDH can be tuned by varying metal cations or interlayer anions, but weakly affected by external electric field. The carrier mobility can reach about 1 × 10(-5) cm(2) V(-1) s(-1) , a value comparable to that of organic C60-based transistors. This work paves a way for future electrical applications of LDH.

Single-layer nanosheets with exceptionally high and anisotropic hydroxyl ion conductivity

“…In addition, a huge sheet resistance (10 7 to 10 8 ohms/square) was measured on LDH nanosheet membranes by a resistance meter (MCP-HT450, Mitsubishi Chemical Analytech). This was consistent with a recent study by Zhao et al ( 47 ) on the electronic transport properties of 2D LDHs, demonstrating a hole conduction with a low carrier mobility. Therefore, a possible electronic conduction might be convincingly excluded, and LDH nanosheets were anion conductors.…”

Structural transformation of layered double hydroxides: an in situ TEM analysis

“…LDHs are versatile materials with high industrial and academic interest, having applications in drug delivery, 3 water oxidation, 4 catalysis, 5 supercapacitors, 6 gas absorbents, 7 nanocomposites, 8 and transistors, 9 . Two exciting members of the LDH family are magnesium-aluminium (Mg-Al) LDH and nickel-iron (Ni-Fe) LDH.…”

Wavelength‐Tunable Electroluminescent Light Sources from Individual Ga‐Doped ZnO Microwires

“…Meanwhile, different growth temperature of ZnO (950 °C) and Ga 2 O 3 (1100 °C) in a vapor–solid progress is conducive to regulating the Ga‐doping component . Accordingly, Ga‐doped ZnO micro/nanostructures have attracted significant attention due to their notable abilities to give resistance modulation when employed as channel layers of electronic devices . Unfortunately, the tuning range of emission wavelengths is limited for a single micro/nanostructure, which is insufficient for many applications; meanwhile, active tuning of individual tunable electronics devices remains extremely challenging.…”

“…To realize highly efficient optoelectronic devices, enormous efforts have been dedicated to fabricate doped ZnO semiconductor nanostructures with reproducible optical and electronic properties, including the controlled incorporation of n‐type and p‐type dopants, such as Al, Ga, N, Li, P, and so on . To date, the doped ZnO nano/microstructures are found to have more potential applications, such as microelectronics, chemical and biological sensor and diagnosis, light‐emitting displays, catalysis, optical storage, and so on . Of all elements, Ga is the most effective n‐type dopant in ZnO since the covalent bond length of GaO (1.92 Å) is nearly equal to that of ZnO (1.97 Å).…”