Microstructural, optical and electrical properties of Cl-doped CdTe single crystals

• Autorzy: Choi H. , Kim H. S. , Oh J.-H. , Kim D. J. , Kim Y. S. , Chai J.-S. , Ha J. H.

Identyfikatory

DOI

10.1515/msp-2016-0066

• Języki publikacji: EN

Abstrakty

EN

Microstructural, optical and electrical properties of Cl-doped CdTe crystals grown by the low pressure Bridgman (LPB) method were investigated for four different doping concentrations (unintentionally doped, 4.97 × 10¹⁹ cm^-3, 9.94 × 10¹⁹ cm^-3 and 1.99 × 10²⁰ cm^-3) and three different locations within the ingots (namely, samples from top, middle and bottom positions in the order of the distance from the tip of the ingot). It was shown that Cl dopant suppressed the unwanted secondary (5 1 1) crystalline orientation. Also, the average size and surface coverage of Te inclusions decreased with an increase in Cl doping concentration. Spectroscopic ellipsometry measurements showed that the optical quality of the Cl-doped CdTe single crystals was enhanced. The resistivity of the CdTe sample doped with Cl at the 1.99 × 10²⁰ cm^-3was above 10¹⁰cm.

Słowa kluczowe

EN

CdTe; radiation detector; low pressure Bridgman method; chlorine doping

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2016
• Tom: Vol. 34, No. 3
• Strony: 487--493
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Choi H.

• WCU Department of Energy Science, Sungkyunkwan University, Suwon, Republic of Korea

autor

Kim H. S.

• Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea

autor

Oh J.-H.

• Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea

autor

Kim D. J.

• Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea

autor

Kim Y. S.

• Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea

autor

Chai J.-S.

• College of Information and Communication Engineering, Sungkyunkwan University, Suwon, Republic of Korea

autor

Ha J. H.

• Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.