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Nano Res.
Electronic Supplementary Material
Structural and optical verification of residual strain
effect in single crystalline CdTe nanowires
Liubing Huang1, Siyuan Lu2, Paichun Chang1, Karan Banerjee1, Robert Hellwarth1, and Jia Grace Lu1 ()
1
2
Department of Physics and Astronomy, Department of Electrical Engineering, University of Southern California, Los Angeles, CA90089, USA
IBM Thomas J. Watson Research Center, 1101 Kitchawan Road, Yorktown Heights, NY 10598, USA
Supporting information to DOI 10.1007/s12274-013-0390-y
Figure S1 Power-dependent PL spectra with excitation laser power varying from 0.014 W/cm2 to 9.73 W/cm2.
Address correspondence to [email protected]
Nano Res.
Figure S2 Peak position as a function of excitation power density for all five peaks. All the PL spectra are Gaussian fitted and the
corresponding peak positions are shown. When PL is measured using excitation power density varying from 0.014 to 9.73 W/cm2, no
detectable red-shift in PL peak position was observed, indicating lack of heating. The blue-shift is due to band filling effects as the
power density increases.
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