کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8033680 | 1518006 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vacancy behavior in Cu(In1 â xGax)Se2 layers grown by a three-stage coevaporation process probed by monoenergetic positron beams
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Vacancy behavior in Cu(In1 â xGax)Se2 layers grown by a three-stage coevaporation process probed by monoenergetic positron beams Vacancy behavior in Cu(In1 â xGax)Se2 layers grown by a three-stage coevaporation process probed by monoenergetic positron beams](/preview/png/8033680.png)
چکیده انگلیسی
Vacancy-type defects in Cu(In1 â xGax)Se2 (x â
 0.45 and 1) grown by a three-stage coevaporation process were probed using monoenergetic positron beams. Measurements of Doppler broadening spectra of the annihilation radiation and positron lifetime spectra showed that two different defect species coexist in the Cu(In1 â xGax)Se2 layers, and these were identified as mono/divacancy-type defects and vacancy clusters, respectively. The vacancy clusters were mainly introduced during the third growth stage, and were located in the subsurface region. The concentration of the defects affected the short-circuit current density and the conversion efficiency of the solar cells. The defect concentration and their depth distributions varied depending on Se beam equivalent pressure, growth time, and post-growth annealing time. The behavior of the vacancy-type defects is discussed also with respect to results obtained using an electron probe micro-analyzer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 603, 31 March 2016, Pages 418-423
Journal: Thin Solid Films - Volume 603, 31 March 2016, Pages 418-423
نویسندگان
Akira Uedono, Muhammad M. Islam, Takeaki Sakurai, Christoph Hugenschmidt, Werner Egger, Roland Scheer, Reinhard Krause-Rehberg, Katsuhiro Akimoto,