Effect of Yb concentration on the resistivity and lifetime of CdTe:Ge:Yb codoped crystals | Zendy

N.V. Sochinskii | Zendy; Manuel Abellán | Zendy; Jonathan Rodrı́guez-Fernández | Zendy; Edgardo Saucedo | Zendy; Carmen M. Ruiz | Zendy; V. Bermúdez | Zendy

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Effect of Yb concentration on the resistivity and lifetime of CdTe:Ge:Yb codoped crystals

Author(s) -

N.V. Sochinskii,

Manuel Abellán,

Jonathan Rodrı́guez-Fernández,

Edgardo Saucedo,

Carmen M. Ruiz,

V. Bermúdez

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2815644

Subject(s) - electrical resistivity and conductivity , cadmium telluride photovoltaics , materials science , doping , ytterbium , rare earth , germanium , carrier lifetime , analytical chemistry (journal) , optoelectronics , chemistry , silicon , metallurgy , chromatography , electrical engineering , engineering

The resistivity and electron lifetime of CdTe:Ge:Yb crystals are reported, demonstrating that the\udeffect of Yb concentration is crucial for accurate electrical compensation. It is also demonstrated\udthat the codoping of CdTe with Ge as deep donor and with Yb as rare-earth element could be a\udpromising way to obtain semiinsulating CdTe crystals with good transport properties. High\udresistivity 5 10\ud9\ud cm and lifetime 9 s were obtained, thus conrming the benecial effect of\udrare-earth dopingThis work has been partly supported by the projects\udCAM SENSORCDT S-0505/MAT/0209, CAM FOTOFLEX S-0505/ENE-123, and EU FP6 PHOLOGIC 017158. E.S.\udalso acknowledges the Spanish MEC for the fellowship FPU\ud2003-1388.Peer reviewe

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