Low Pressure Chemical Vapour Deposition of Crystalline Ga2Te3 and Ga2Se3 Thin Films from Single Source Precursors Using Telluroether and Selenoether Complexes

Low Pressure Chemical Vapour Deposition of Crystalline Ga2Te3 and Ga2Se3 Thin Films from Single Source Precursors Using Telluroether and Selenoether Complexes
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使用碲醚和硒醚配合物从单源前驱体低压化学气相沉积结晶 Ga2Te3 和 Ga2Se3 薄膜

DOI:
10.1016/j.phpro.2013.07.056
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发表时间:
2013
期刊:
Physics Procedia
影响因子:
--
通讯作者:
George K
George K
中科院分区:
--
文献类型:
--
作者:
George K

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Neutral telluro- and seleno-ether complexes of the form [GaCl3(nBu2E)] (E = Se, Te) and [(GaCl3)2{nBuE(CH2)nEnBu}] (E = Se, n = 2; E = Te, n = 3) have been synthesised via a facile, high yielding reaction. These complexes have been shown to be suitable precursors for the low pressure chemical vapour deposition of Ga2Te3and Ga2Se3, the first reported example of a telluroether complex being used for the deposition of a metal telluride. The thin films have been characterised by X- ray diffraction, SEM, EDX, Raman and Hall measurements. The films are crystalline, have good, uniform coverage and Raman spectra match literature values. Hall measurements show that the thin films are p-type semiconductors. Competitive deposition of Ga2Te3onto photolithographically patterned SiO2/TiN substrates shows a preference for deposition onto TiN.
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