期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 21, 期 2, 页码 359-363出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(11)60722-X
关键词
CuI thin film; buffer layer; spraying method; iodine doping
资金
- Beijing Natural Science Foundation, China [2091003]
CuI thin films with nano-scale grains of about 35nm were deposited via spraying method with using acetonitrile as solvent. The influence of iodine doping concentration in acetonitrile solution on the structure, topographic and optical properties of CuI thin films was investigated. X-ray diffraction results showed that CuI iodine-doped films doped CuI:I(2) were in gamma-phase of zinc blende structure with (111) preferential plane. Scanning electron microscopy revealed that the microstructure of CuI films depended on the relative amount of doping iodine in the solution. When the iodine doping amount in acetonitrile solution was 0.025 g, the film was uniform and compact, the optical transmittance was 75.4% in the part of visible region and the energy band gap was close to 2.96 eV.
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