Additional file 1.

Supplementary information. Figure S1. Schematic diagram and real time photographs of our home-built PA-HWCVD system. Figure S2. Photograph of the In2O3 NPs coated on quartz substrate (a) without, and (b) with thermal radiation treatment in N2O plasma. Figure S3. PL spectra of the untreated In2O3 NPs, thermal radiation treated In2O3 NPs for 7 and 10 minutes. Figure S4. HRTEM micrographs of the In2O3 nanocrystals with different facets ranging from (a) 3, (b) 4 to (c) 5 facets observed in the nanostructured In2O3 films. Figure S5. Tauc plots of (αE)2 against E for the In2O3 NPs and nanostructured In2O3 films. Figure S6. Planar view FESEM images of the In2O3 NPs deposited on quartz substrate (a) without, and (b and c) with thermal radiation treatment.

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Chong et al. Nanoscale Research Letters 2013 8:428   doi:10.1186/1556-276X-8-428