Hydrothermal growth and characterization of nitrogen-doped ZnO crystals

Wang, Buguo; Callahan, Michael J.; Bouthillette, Lionel O.; Xu, Chunchuan; Suscavage, Michael J.

doi:10.1016/j.jcrysgro.2005.11.049

Cited by 26 publications

(14 citation statements)

References 19 publications

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“…Because of the high normality of the mineralizing solution, a sealed platinum liner was used to isolate the crystal growth environment from the walls of the autoclave [20,21]. The nutrient was prepared from 99.99% ZnO (Alfa Aesar) powder, which was sintered in air at 1150 1C for 12 h in a platinum crucible.…”

Section: Indium-doped Zno Crystal Growthmentioning

confidence: 99%

Hydrothermal growth and characterization of indium-doped-conducting ZnO crystals

Wang

Callahan

et al. 2007

Journal of Crystal Growth

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Section: Indium-doped Zno Crystal Growthmentioning

confidence: 99%

Hydrothermal growth and characterization of indium-doped-conducting ZnO crystals

Wang

Callahan

et al. 2007

Journal of Crystal Growth

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“…32 Aqueous solution based semiconductor doping under 100 C is started more recently than vapor, or gas based doping like CVD, MBE, etc., 33,34 including the case of ZnO. 35,36 Compared to vacuum gas-phase growth, low-temperature solution reactions have several advantages, such as lower processing cost, large scalability, low thermal budget, and easier use of the source materials. The solution growth of doped ZnO NRs has been recently reported by quite many research groups and the control of the morphology and material properties is also studied including antimony doped ZnO.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient UV-sensing properties of Sb-doped ZnO nanorod arrays synthesized by a facile, single-step hydrothermal reaction

Kim

Jeon

et al. 2017

RSC Adv.

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The synthesis of electrical and optical property-modulated, low-dimensional metal oxide semiconductors has been adopted for the development of nanodevices. However, conventional modulation methods, such as doping and alloying, generally require rather complex processes, such as multi-step high-temperature reactions, gas-phase growth, high-vacuum processes, etc. Alternatively, in the current study, the facile and cost-effective synthesis of Sb-doped ZnO nanorod arrays (NRAs) is achieved using a simple hydrothermal growth process at 95 C. Through a single-step reaction, Sb atoms are substitutionally doped at the Zn atom sites with control of the Sb concentration. Sb dopants and Sb-induced oxygen vacancies increase the electron concentration in the ZnO NRAs, enhancing the electrical conductivity of the ZnO NRAs and inducing the further adsorption of ambient oxygen molecules on the nanorod surface. Upon UV irradiation of the highly oxygen-adsorbed, Sb-doped ZnO NRAs, the desorption of oxygen induces greater conductivity changes compared to the undoped samples. Based on this enhanced resistivity change, UV sensor devices were fabricated, and an improved reversible UV sensing performance was observed, with a $9-fold enhancement in the photocurrent of the ZnO NRAs after Sb doping. Moreover, UV sensing is achieved even under an extremely low bias of 10-6 V, suggesting the promising application of this material in extremely low-power UV sensor devices.

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“…Availability of substrates for homoepitaxy is a great advantage of this material. ZnO single crystals are commercially grown by melt and hydrothermal methods [1][2][3]. Reports on growth of ZnO crystals from the vapor are scarce [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%