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. 2020 Jul 10;9:117. doi: 10.1038/s41377-020-00361-0

Fig. 3. PL spectra of Zn1−xNdxO with and without 4-MPy molecules upon 514.5 nm and 325 nm laser excitation.

Fig. 3

a PL spectra of ZnO, Zn0.98Nd0.02O, 4-MPy, 4-MPy+ZnO, and 4-MPy+Zn0.98Nd0.02O upon 514.5-nm laser excitation; b PL spectra of ZnO, Zn0.98Nd0.02O, and ZnO upon 325-nm laser excitation