Current‐transport studies and trap extraction of hydrothermally grown ZnO nanotubes using gold Schottky diode

Abstract

Ne w I m p a ct Fa c t o r 2 0 0 8 1.21 applications and materials science a status solidi www.pss-a.com physica

Progress on one-dimensional zinc oxide nanomaterials based photonic devices

“…The physical origin of the peak position at 450 nm is still controversial and generally this peak position has been assigned to the transition of the carriers from zinc interstitial to zinc vacancy by some investigators [104 -106] , while recombination at the deep magnesium acceptors present in GaN are considered as a source of this peak by others [107,108] . Recently reported results demonstrate that ZnO nanotubes show low turn-on voltage and better conductivity with higher current growth rate compared to ZnO nanorods [109,110] . So, the higher injection of the carriers from the ZnO nanotubes to the GaN eventually enhances the radiative recombination in the ZnO nanotubes for the stronger emission of ultraviolet-blue emission peak.…”

Synthesis of ZnO and transition metals doped ZnO nanostructures, their characterization and sensing applications

“…In addition, the performance of the sensors can be improve by doping ZnO nanostructure with different metals or by alloyed ZnO with other metal oxides. This is due to the dopant influenced on the properties ZnO nanostructures such as the band gap, optical property and electrical conductivity [33][34][35][36][37][38][39]. Furthermore, room temperature ferromagnetic properties are also achieved by doping with transition metals into ZnO nanostructures, which shows potential for increasing performance of sensing device and for future spintronics applications [40][41][42][43].…”

ZnO Nanostructures: Toxicity and Phototoxicity Characteristics in Biological Samples

“…Various electronic devices based on purely organic materials have been already realized such as paper batteries [19], electronic paper displays (EPDs) [20], thin-film transistors [21][22][23], photodiodes [24], and biomedical applications, [25] on such a potential substrate. Such devices must be reproducible on low-cost ϐlexible and foldable substrates, e.g., plastic, paper, etc., to create smart chip cards, roll-up screens, and even disposable displays.…”

“…Research is actively focused on using nonconventional substrates for basic electronics components, which make excellent alternative substrates with exceptional technological attributes and commercial perspectives for the many substrates available. Researchers have grown ZnO nanostructures at low temperature on a wide variety of hard and brittle substrates such as 4H-SiC [28], Si [24], GaN [29], and on ϐlexible plastic substrates [27]. Despite these bright forecasts, little attention has been paid to disposable electronic devices or using paper as a physical support.…”