Room Temperature Ferromagnetism in Si-Doped GaN Powders

Ababakri, R; Wang, Gang; Zhang, ZH; Wu, Rong; Li, J; Jian, J.K.

doi:10.1166/sam.2014.1710

Cited by 6 publications

(2 citation statements)

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“…The weaker peak at 304 cm −1 is due to the disorder‐activated Raman scattering and/or V Ga . The broad peak at 420 cm −1 can be ascribed to nitrogen vacancies and/or interstitials that are expected to occur at high concentrations . The broad and asymmetric peak at 657 cm −1 can be assigned to a defect level below the GaN conduction band minimum …”

Section: Resultsmentioning

confidence: 99%

Self‐Supporting GaN Nanowires/Graphite Paper: Novel High‐Performance Flexible Supercapacitor Electrodes

Wang

Sun

Shao

et al. 2016

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Flexible supercapacitors have attracted great interest as energy storage devices because of their promise in applications such as wearable and smart electronic devices. Herein, a novel flexible supercapacitor electrode based on gallium nitride nanowire (GaN NW)/graphite paper (GP) nanocomposites is reported. The outstanding electrical conductivities of the GaN NW (6.36 × 10 S m ) and GP (7.5 × 10 S m ) deliver a synergistically enhanced electrochemical performance that cannot be achieved by either of the components alone. The composite electrode exhibits excellent specific capacitance (237 mF cm at 0.1 mA cm ) and outstanding cycling performance (98% capacitance retention after 10 000 cycles). The flexible symmetric supercapacitor also manifests high energy and power densities (0.30 mW h cm and 1000 mW cm ). These findings demonstrate that the GaN/GP composite electrode has significant potential as a candidate for the flexible energy storage devices.

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Section: Resultsmentioning

confidence: 99%

Self‐Supporting GaN Nanowires/Graphite Paper: Novel High‐Performance Flexible Supercapacitor Electrodes

Wang

Sun

Shao

et al. 2016

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“…In this work, we report the structural, optical, and the magnetic properties of the GaN powders doped with Nd by a direct nitridation route at high temperature . The results show RT‐FM behavior of Nd‐doped GaN powders with a large effective magnetic moment.…”

Section: Introductionmentioning

confidence: 89%

Structural, Optical, and Magnetic Properties of Nd‐Doped GaN Powders

et al. 2014

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Nd‐doped GaN powders are synthesized by a direct nitridation of Ga2O3, and the structural, optical, and magnetic properties of the products with different Nd concentrations are investigated. It is found that the Nd‐doped GaN powders have wurtzite structure and exhibit a broad blue emission related with defects. The stable room‐temperature ferromagnetism is observed in the products, which is dependent on the Nd concentration. The possible origin of the ferromagnetism is discussed.

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