Sains Malaysiana 43(7)(2014): 1061–1067

Deposition and Characterization of SnSe and CuInSe₂ Thin Films by

Thermal Evaporation Technique from Synthesized SnSe and CuInSe₂ Sources

(Pengenapan dan Pencirian Filem Nipis SnSe dan CuInSe₂ dengan Kaedah Penyejatan

Haba Menggunakan SnSe dan CuInSe₂ Sebagai Bahan Sumber)

NORDIN SABLI¹, ZAINAL ABIDIN TALIB¹*, CHANG CHUNG BIN¹, WAN MAHMOOD  MAT YUNUS¹, ZULKARNAIN ZAINAL², HIKMAT S. HILAL³, JOSEPHINE LIEW YING CHYI¹ & MASATOSHI FUJII⁴

¹Department of Physics, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

²Department of Chemistry, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

³SSERL, Department of Chemistry, An-Najah N. University, PO Box 7, Nablus, West Bank

Palestine

⁴Masatoshi Fujii, Department of Molecular Science, School of Medicine,Shimane University, Izumo, Shimane, 693-8501,Japan

Received: 2 July 2013/Accepted: 13 September 2013

ABSTRACT

Tin selenide (SnSe) and copper indium diselenide (CuInSe₂) compounds were synthesized by high temperature reaction method using combination of sealed ampoule (at relatively low pressure ~10-1 Pa without inert gas) and heating at specific temperature profile in rocking furnace. Powder X-Ray diffraction analysis showed that the products involved only single phases of SnSe and of CuInSe₂ only. Using the reaction products as source materials, the SnSe and CuInSe₂ thin films were vacuum-deposited on glass substrates at room temperature. Structural, elemental, surface morphological and optical properties of the as-deposited films were studied by X-Ray diffraction (XRD), energy dispersive X-Ray (EDX) analysis, field emission scanning electron microscopy (FESEM) and UV-Vis-NIR spectroscopy. Single phase of SnSe and CuInSe₂ films were obtained by thermal evaporation technique from synthesized SnSe and CuInSe₂ compound without further treatment.

Keywords: CuInSe; SnSe; solid state reaction; source material; thin films

ABSTRAK

Sebatian timah selenida (SnSe) dan kuprum indium diselenida (CuInSe₂) telah disintesis pada tindak balas bersuhu tinggi menggunakan gabungan ampul yang ditutup kedap (pada kadar tekanan rendah ~10-1 Pa tanpa gas lengai) dan pemanasan pada profil suhu khusus dalam relau berayun. Analisis pembelauan sinar-X serbuk mendapati hasil sintesis yang diperolehi adalah SnSe dan CuInSe₂ fasa tunggal. Serbuk yang telah disintesis digunakan sebagai bahan sumber untuk menyediakan filem nipis SnSe dan CuInSe₂ meggunakan kaedah penyejatan dengan haba di dalam vakum. Kajian sifat struktur, komposisi, morfologi dan optik untuk filem yang dienapkan dijalankan dengan menggunakan pembelauan sinar-X (XRD), analisis penyerakan tenaga sinar-X (EDX), mikroskopi medan pancaran pengimbasan elektron (FESEM) dan spektroskopi UV-Vis-NIR. SnSe and CuInSe₂ fasa tunggal dapat diperoleh tanpa melalui rawatan selanjutnya melalui kaedah penyejatan dengan haba di dalam vakum menggunakan sebatian SnSe dan CuInSe₂ yang telah disintesis sebagai bahan sumber.

Kata kunci: Bahan sumber; CuInSe₂; filem nipis; SnSe; tindak balas keadaan pepejal

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*Corresponding author; email: zainalat@science.upm.edu.my