Author/Authors :
Guo، نويسنده , , Jiajie and Xu، نويسنده , , Jinyou and Zhuang، نويسنده , , Xiujuan and Wang، نويسنده , , Yicheng and Zhou، نويسنده , , Hong and Shan، نويسنده , , Zhengping and Ren، نويسنده , , Pinyun and Guo، نويسنده , , Pengfei and Zhang، نويسنده , , Qinglin and Wan، نويسنده , , Qiang and Zhu، نويسنده , , Xiaoli and Pan، نويسنده , , Anlian، نويسنده ,
Abstract :
In this work, ZnTe single crystalline nanowires and twinning nanobelts were synthesized to investigate the relationship between microstructure and optical properties. Power-dependent photoluminescence measurements reveal that the emission peaks of the single crystalline nanowires redshift with increasing the excitation power as a result of the band-gap renormalization effect. However, the photoluminescence redshift of the twinning nanobelts is larger than that of the nanowires, which is caused by both band-gap renormalization effect and electron–hole plasma effect induced by the increase of carrier density in the twin structure at high excitation power.
