Copper selenide crystallites synthesized using the hot-injection process

Chang Ting Yang, Hsing I. Hsiang, Jui Huan Tu

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11 Citations (Scopus)


Nearly dispersed CuSe and Cu2-xSe crystals were successfully prepared using copper and selenium-triethylene glycol (TEG) solution thermal decomposition using triethylenetetramine (TETA) as the reducing agent and polyvinylpyrrolidone (PVP) as the capping agent at 230 °C for 1 h. The crystalline structure, electronic and copper selenide particles optical characterization were investigated using transmission electron microscopy (TEM), X-ray diffractometer (XRD), UV-visible absorbance spectra. The TETA addition effects on crystal phase development and morphology were investigated. The obtained copper selenides are CuSe and Cu2-xSe single phase for the samples added with TETA of 0.7 and 2.2 ml, respectively. The measured energy gaps for CuSe and Cu2-xSe are 2.0 eV and 2.17 eV, respectively. These synthesized compounds provide promising candidates for solar cell applications.

Original languageEnglish
Pages (from-to)959-963
Number of pages5
JournalAdvanced Powder Technology
Issue number3
Publication statusPublished - 2016 May 1

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanics of Materials


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