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Temperature dependent photoluminescence with spontaneous piezoelectric field in single quantum wells
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10.1063/1.2431446
/content/aip/journal/apl/90/3/10.1063/1.2431446
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/3/10.1063/1.2431446
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Temperature dependent PL spectra for sample A (a) and sample B (b). The measurement temperatures from the top are 77, 100, 150, 200, 250, and , respectively. The dash lines are the PLE spectra measured at . The arrows indicate the exciton absorption peak. (c) Temperature dependent integrated PL intensity obtained from (a) and (b).

Image of FIG. 2.
FIG. 2.

(Color online) (a) TR-PL spectra of sample A measured at 77, 150, 200, and from top, respectively. The experimental data and fitting results are shown in open circles and solid lines, respectively. (b) Temperature dependent lifetimes and PL peak energies. (c) and (d) are the same content for sample B, respectively.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Example of band diagram calculation. The electron and hole energy levels and wave functions are also shown. The well width, PZ field, and are , , and , respectively. (b) The electron density dependent energy shift (lines) and (symbols) for two well widths, (squares and line) and (circles and dash line). The PZ fields are the same as in (a).

Image of FIG. 4.
FIG. 4.

(a) Calculated PZ field dependent energy shift for three of 0 (solid line), 5 (dash line), and 10 (dotted line) . (b) The calculated dependent energy shift at a PZ field of . (c) The temperature dependent peak energy shifts for samples A and B extracted from PL spectra. (d) The temperature dependent electron density of sample A. The solid line is the fitting curve using the formula given in the text.

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/content/aip/journal/apl/90/3/10.1063/1.2431446
2007-01-16
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Temperature dependent photoluminescence with spontaneous piezoelectric field in ZnO∕Zn0.74Mg0.26O single quantum wells
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/3/10.1063/1.2431446
10.1063/1.2431446
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