Additional file 1: Figure S1.

Initial growth stage of ZnO NRs on In/Si NWs. (a) FESEM image and (b) TEM micrograph of the newly grown ZnO NRs. (c) High magnification TEM micrographs of In seed-capped ZnO NRs. Figure S2. HRTEM micrograph of the amorphous In2O3 and ZnO interface enlarged from a TEM micrograph of an In seed-capped ZnO NR. The TEM micrograph of the In seed-capped ZnO NR is inserted in the figure.

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Chong et al. Nanoscale Research Letters 2013 8:174   doi:10.1186/1556-276X-8-174