مشخصه یابی و بررسی خواص اپتیکی نانوپودر تلوراید کادمیم سنتز شده به روش هیدروترمال

نوع مقاله: مقاله پژوهشی کامل

نویسندگان

1 دانشگاه فردوسی مشهد

2 مجتمع آموزش عالی اسفراین

چکیده

نانوپودرهای تلوراید کادمیم به روش هیدروترمال، در دماهای مختلف و زمان واکنش متفاوت سنتز شدند. نمونه های آماده شده با استفاده از پراش پرتو ایکس (XRD)، میکروسکوپ الکترونی روبشی (SEM)، طیف آنالیز EDS و طیف سنجی مرئی-فرابنفش پخشی (UV-Vis DR) مشخصه یابی گردیدند. طرح پراش پرتو ایکس نشان می دهد که فازهای ثانویه در نمونه سنتز شده در دمای 180 درجه سانتی گراد و زمان واکنش 80 ساعت تقریبا ناپدید می شوند. تصاویر میکروسکوپ الکترونی روبشی مشخص کرد که متوسط اندازه ذرات تلوراید کادمیم سنتز شده در حدود 85 نانومتر است. بررسی خواص اپتیکی نشان داد که نانوپودرهای تلوراید کادمیم سنتز شده به روش هیدروترمال می توانند به عنوان لایه جاذب در ساخت قطعات اپتیکی از قبیل سلول های خورشیدی بکار روند.

کلیدواژه‌ها


عنوان مقاله [English]

Characterization and optical properties of Cadmium Telluride nanopowders synthesized via hydrothermal method

نویسندگان [English]

  • Ahmad Kompany 1
  • Boshra Ghanbari Shohany 1
  • Ali Khorsand Zak 2
1 ferdowsi university of mashhad
2 Esfarayen high education complex
چکیده [English]

Cadmium telluride nanopowders were synthesized through the hydrothermal method at different temperatures and reaction times. The prepared samples were characterized using x-ray diffraction (XRD), scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDS) and diffuse reflectance UV-vis spectroscopy (DR UV-vis). The XRD patterns revealed that the secondary phases almost disappeared in the sample synthesized at 180 ° C for 80h. SEM images showed that the average particle size of the prepared CdTe powders is about 85 nm. Investigation of optical properties confirmed that CdTe nanopowders synthesized by hydrothermal are ideal materials to be used as the absorber layer in fabricating optical devices such as solar cells.

کلیدواژه‌ها [English]

  • CdTe
  • hydrothermal
  • nanopowder
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