Wide Bandgap Semiconductor One-Dimensional Nanostructures for Applications in Nanoelectronics and Nanosensors

Abstract

Wide bandgap semiconductor ZnO, GaN and InN nanowires have displayed the ability to detect many types of gases and biological and chemical species of interest. In this review, we give some recent examples of using these nanowires for applications in pH sensing, glucose detection and hydrogen detection at ppm levels. The wide bandgap materials offer advantages in terms of sensing because of their tolerance to high temperatures, environmental stability and the fact that they are usually piezoelectric. They are also readily integrated with wireless communication circuitry for data transmission.

Influence of the aqueous solution composition on the morphology of Zn1−xMgxO films deposited by spray pyrolysis

“…Oxide-based wide-band gap materials are attractive for an extensive range of applications, such as photovoltaics, [1][2][3] functional coatings, 4,5 (opto)electronic devices [6][7][8] or sensors. 9,10 Among them, ZnO is one of the most investigated metal oxides, because of its facile fabrication and doping, especially by low-cost solution-based techniques.…”

Formaldehyde gas sensing using metal oxide semiconductor: a brief review

“…ZnO has a wide bandgap of 3.37 eV and a large binding energy of 60 meV (Mohan et al , 2012). Semiconductors with wide bandgap have several advantages, such as having tolerance to high temperatures, stability and mechanical robustness (Pearton and Ren, 2013). The non-toxicity and availability of ZnO have gained great interest from various sectors/industries.…”

Optimization of ZnO Nanorods Concentration in a Micro-Structured Polymeric Composite for Nanogenerators

“…Piezoelectric materials can transduce mechanical energy into electrical energy through strain induced piezoelectric polarization [1]. Several crystalline materials exhibit this type of piezoelectric behavior, namely lead zirconate titanate (PZT) [2][3][4][5], gallium nitride (GaN) [6], barium titanate (BaTiO 3 ) [7][8][9], zinc tin oxide (ZnSnO 3 ) [10][11][12][13], or zinc oxide (ZnO) [6,14,15]. In terms of performance, piezoelectric ceramics (such as PZT and BaTiO 3 ) have the best output, although their brittle nature limits the device regarding mechanical stresses [16,17].…”