TY - JOUR
T1 - Temperature dependence of optical centers in Ib diamond characterized by photoluminescence spectra
AU - Dong, Bing
AU - Shi, Changkun
AU - Xu, Zongwei
AU - Wang, Kaiyue
AU - Luo, Huihui
AU - Sun, Fangwen
AU - Wang, Pengfei
AU - Wu, E.
AU - Zhang, Kun
AU - Liu, Jiayu
AU - Song, Ying
AU - Fan, Yexin
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/6
Y1 - 2021/6
N2 - The optical properties of defects in Ib diamond prepared by Chemical Vapor Deposition (CVD) and High Pressure High Temperature (HPHT) methods are studied by photoluminescence in a temperature range of 77– 297 K. The temperature dependence of color centers in diamond of 2.65 eV center, NV0, NV-, SiV-, 3H is studied. The zero-phonon line (ZPL) shift, intensity and full width at half maxima (FWHM) have a strong temperature dependence. The study shows that, due to the expansion of the lattice and the enhancement of the electron-phonon coupling strength, the ZPL shift can be described by the modified Varshni model which shows great potential in temperature sensing. The FWHM of ZPL matches a cubic function of temperature, this model can be employed to well describe the broadening of ZPLs in the defect-rich diamond. And the thermal quenching of absolute PL intensity can be described by the Arrhenius equation. Meanwhile, the difference of variable PL signal between CVD and HPHT samples is analyzed.
AB - The optical properties of defects in Ib diamond prepared by Chemical Vapor Deposition (CVD) and High Pressure High Temperature (HPHT) methods are studied by photoluminescence in a temperature range of 77– 297 K. The temperature dependence of color centers in diamond of 2.65 eV center, NV0, NV-, SiV-, 3H is studied. The zero-phonon line (ZPL) shift, intensity and full width at half maxima (FWHM) have a strong temperature dependence. The study shows that, due to the expansion of the lattice and the enhancement of the electron-phonon coupling strength, the ZPL shift can be described by the modified Varshni model which shows great potential in temperature sensing. The FWHM of ZPL matches a cubic function of temperature, this model can be employed to well describe the broadening of ZPLs in the defect-rich diamond. And the thermal quenching of absolute PL intensity can be described by the Arrhenius equation. Meanwhile, the difference of variable PL signal between CVD and HPHT samples is analyzed.
UR - https://www.scopus.com/pages/publications/85104076213
U2 - 10.1016/j.diamond.2021.108389
DO - 10.1016/j.diamond.2021.108389
M3 - 文章
AN - SCOPUS:85104076213
SN - 0925-9635
VL - 116
JO - Diamond and Related Materials
JF - Diamond and Related Materials
M1 - 108389
ER -