120 MeV Ni10+ swift heavy ions irradiation on CdSe nanocrystals induces cubic to hexagonal phase transformation - A study of microstructural modification

被引：10

作者：

Nath, Debojyoti ^{[1
]}

Singh, Fouran ^{[2
]}

Das, Ratan ^{[1
]}

机构：

[1] Tripura Univ, Dept Phys, Nanophys & Nanotechnol Res Lab, Suryamaninagar 799022, India

[2] Inter Univ Accelerator Ctr, Aruna Asaf Ali Marg, New Delhi 110067, India

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2020年 / 114卷

关键词：

Phase transformation; Microstructure modification; Dislocation density; Structural modifications; Semiconductor nanocrystals; Swift heavy ion irradiation; Variance model; X-RAY-DIFFRACTION; OPTICAL-PROPERTIES; DISLOCATION DENSITY; MAGNETIC-PROPERTIES; SIZE; AMORPHIZATION; NANOPARTICLES; STRAIN; ALLOYS;

D O I：

10.1016/j.mssp.2020.105079

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the present work, chemically synthesized cadmium selenide (CdSe) nanocrystals, which have a cubic lattice structure as per X-ray diffraction (XRD) analysis, has been irradiated with 120 MeV Ni10+ swift heavy ions (SHI) for the study of their structural modification. A significant change in the lattice structure has been found with different ion fluence of 120 MeV Ni10+ irradiation, which may be due to the high electronic energy loss of SHI. AFM analysis also shows changes in morphological properties with ion irradiation. The evolution of lattice structure with different fluence has been studied using double ion impact model. Further, SHI induced cubic to hexagonal transformation effect the microstructural parameters such as intrinsic strain, dislocation density of CdSe nanocrystals. SHI induced microstructural modifications have also been studied with the help of Variance model.

引用

页数：7