Publications

@article{Yamazaki_2009,

title = {Room-Temperature Growth of UV-Emitting Dendritic GaN Fractal Nanostructures Using Photochemical Vapor Deposition},

author = {Shunsuke Yamazaki and Takashi Yatsui and Motoichi Ohtsu},

doi = {10.1143/apex.2.031004},

year  = {2009},

date = {2009-03-01},

journal = {Applied Physics Express},

volume = {2},

number = {3},

pages = {031004},

publisher = {IOP Publishing},

abstract = {A dendritic gallium nitride (GaN) structure was grown at room temperature using photochemical vapor deposition with trimethylgallium and ammonia as the source materials. The sample was investigated by a scanning electron microscope and photoluminescence (PL). Its morphology was evaluated using fractal analysis. The surface morphology of the deposited film had dendritic nanostructures similar in morphology to the diffusion-limited aggregation. Dendritic GaN had a strong PL spectrum with a peak energy of 3.55 eV at 5 K, indicating the quantum size effect. Using the box-counting method, the fractal dimension of the dendritic GaN nanostructure was calculated to be approximately 1.7.},

note = {The paper was highlighted in Nature Photonics Vol.3, 252 (2009)},

keywords = {Fractal, GaN, Nanophotonic fabrication},

pubstate = {published},

tppubtype = {article}

}