Photoluminescence and absorption identification of Ti3+ in zinc telluride

Jun Shao; Achim Dörnen; Enno Baars; Xiaoguang Wang; Junhao Chu

doi:10.1088/0268-1242/17/12/302

Photoluminescence and absorption identification of Ti³⁺ in zinc telluride

Jun Shao^*
, Achim Dörnen
, Enno Baars
, Xiaoguang Wang
, Junhao Chu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Low-temperature photoluminescence (PL) and optical absorption are carried out on a Ti-doped ZnTe bulk crystal with carefully optimized experimental conditions. The influence of excitation energy in the PL is checked. Two zero-phonon lines (ZPLs) are clearly identified and phonon sidebands are evidenced in the PL and in the absorption, respectively. A relation is established between the PL and the absorption for the intensity ratio of the two ZPLs. Thereby, the Ti ion is identified as Ti³⁺ and the ZPLs in the PL spectrum are from the Γ₇ and Γ₈ levels of the ²T₂ excited state to the well-separated Γ₈ level of the ²E ground state. The separation of the two excited levels is 2.4 cm^-1. The population numbers are shown to be fully thermalized in the ²T₂ excited state in the PL process.

Original language	English
Pages (from-to)	1213-1217
Number of pages	5
Journal	Semiconductor Science and Technology
Volume	17
Issue number	12
DOIs	https://doi.org/10.1088/0268-1242/17/12/302
State	Published - Dec 2002
Externally published	Yes

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title = "Photoluminescence and absorption identification of Ti3+ in zinc telluride",

abstract = "Low-temperature photoluminescence (PL) and optical absorption are carried out on a Ti-doped ZnTe bulk crystal with carefully optimized experimental conditions. The influence of excitation energy in the PL is checked. Two zero-phonon lines (ZPLs) are clearly identified and phonon sidebands are evidenced in the PL and in the absorption, respectively. A relation is established between the PL and the absorption for the intensity ratio of the two ZPLs. Thereby, the Ti ion is identified as Ti3+ and the ZPLs in the PL spectrum are from the Γ7 and Γ8 levels of the 2T2 excited state to the well-separated Γ8 level of the 2E ground state. The separation of the two excited levels is 2.4 cm-1. The population numbers are shown to be fully thermalized in the 2T2 excited state in the PL process.",

author = "Jun Shao and Achim D{\"o}rnen and Enno Baars and Xiaoguang Wang and Junhao Chu",

year = "2002",

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doi = "10.1088/0268-1242/17/12/302",

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volume = "17",

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journal = "Semiconductor Science and Technology",

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TY - JOUR

T1 - Photoluminescence and absorption identification of Ti3+ in zinc telluride

AU - Shao, Jun

AU - Dörnen, Achim

AU - Baars, Enno

AU - Wang, Xiaoguang

AU - Chu, Junhao

PY - 2002/12

Y1 - 2002/12

N2 - Low-temperature photoluminescence (PL) and optical absorption are carried out on a Ti-doped ZnTe bulk crystal with carefully optimized experimental conditions. The influence of excitation energy in the PL is checked. Two zero-phonon lines (ZPLs) are clearly identified and phonon sidebands are evidenced in the PL and in the absorption, respectively. A relation is established between the PL and the absorption for the intensity ratio of the two ZPLs. Thereby, the Ti ion is identified as Ti3+ and the ZPLs in the PL spectrum are from the Γ7 and Γ8 levels of the 2T2 excited state to the well-separated Γ8 level of the 2E ground state. The separation of the two excited levels is 2.4 cm-1. The population numbers are shown to be fully thermalized in the 2T2 excited state in the PL process.

AB - Low-temperature photoluminescence (PL) and optical absorption are carried out on a Ti-doped ZnTe bulk crystal with carefully optimized experimental conditions. The influence of excitation energy in the PL is checked. Two zero-phonon lines (ZPLs) are clearly identified and phonon sidebands are evidenced in the PL and in the absorption, respectively. A relation is established between the PL and the absorption for the intensity ratio of the two ZPLs. Thereby, the Ti ion is identified as Ti3+ and the ZPLs in the PL spectrum are from the Γ7 and Γ8 levels of the 2T2 excited state to the well-separated Γ8 level of the 2E ground state. The separation of the two excited levels is 2.4 cm-1. The population numbers are shown to be fully thermalized in the 2T2 excited state in the PL process.

UR - https://www.scopus.com/pages/publications/0036902281

U2 - 10.1088/0268-1242/17/12/302

DO - 10.1088/0268-1242/17/12/302

M3 - 文章

AN - SCOPUS:0036902281

SN - 0268-1242

VL - 17

SP - 1213

EP - 1217

JO - Semiconductor Science and Technology

JF - Semiconductor Science and Technology

IS - 12

ER -

Photoluminescence and absorption identification of Ti³⁺ in zinc telluride

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