化学水浴法制备的Zn(O,Se)薄膜的结构和光学性能OA
Structural and Optical Properties of Zn(O,Se)Thin Films Fabricated by Chemical Bath Deposition
采用化学浴沉积法在90 ℃下制备Zn(O,Se)薄膜,并对其结构和光学性能进行研究.X射线衍射结果表明薄膜为非晶—纳米晶混合态;由X射线光电子能谱可知,薄膜由ZnSe和ZnO的混合物组成,没有发现SeO2杂质相;薄膜在短波区(200～300 nm)拥有高的吸收系数,禁带宽度为3.2 eV.与ZnSe相比,Zn(O,Se)薄膜在短波区吸收系数更低,在长波区透射率更高,将其作薄膜太阳能电池的缓冲层有利于吸收层对光子的吸收.
Zn(O,Se)thin films were prepared via chemical bath deposition(CBD)at 90 ℃,and their structural and optical properties were systematically investigated.X-ray diffraction results indicated that the films exhibited a mixed amorphous-nanocrystalline state.X-ray photoelectron spectroscopy a-nalysis revealed that the films consisted of a mixture of ZnSe and ZnO,with no detectable SeO2 impuri-ty phase.The films possessed a high absorption coefficient in the short-wavelength region(200～300 nm),with an optical band gap of approximately 3.2 eV.Compared with ZnSe,the Zn(O,Se)films demonstrated a lower absorption coefficient in the short-wavelength region and higher transmittance in the long-wavelength region.Therefore,employing Zn(O,Se)as a buffer layer in thin-film solar cells is beneficial for enhancing photon absorption in the absorber layer.
胡宇辰;姚朝晖
云南师范大学可再生能源材料先进技术与制备教育部重点实验室,太阳能研究所,云南 昆明 650500云南师范大学可再生能源材料先进技术与制备教育部重点实验室,太阳能研究所,云南 昆明 650500
数理科学
缓冲层硒氧锌薄膜化学浴沉积结构特征光学性能
Buffer layerSelenium-oxygen-zinc filmChemical bath depositionStructural characteris-ticsOptical properties
《云南师范大学学报（自然科学版）》 2026 (3)
29-32,4
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