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Rainbow-like MoO 3 Nanobelts Fashioned via AFM Micromachining

2009; American Chemical Society; Volume: 114; Issue: 1 Linguagem: Inglês

10.1021/jp908547t

1932-7455

Yang Xie, Fook Chiong Cheong, Yinghuai Zhu, Binni Varghese, Rajesh Tamang, Andrew A. Bettiol, Chorng Haur Sow,

Gas Sensing Nanomaterials and Sensors

Single-crystalline MoO3 nanobelts were prepared on a wide variety of substrates by a simple evaporation and deposition process using a thermal hot plate. This cost-effective technique has the potential for large-scale production of MoO3 nanobelts with a unique layered structure. The MoO3 nanobelts dispersed on silicon substrates exhibited a wide variety of colors attributable to the difference in the thicknesses of the nanobelts. Due to the weak interlayer binding, partial and localized removal of the layered nanobelts was readily achieved via atomic force microscope micromachining, resulting in multicolored patterns on individual nanobelts.