In situ growth of metal-sulfide film with solvent-free element-direct reaction: the case of PbS on ITO

In situ growth of metal-sulfide film with solvent-free element-direct reaction: the case of PbS on ITO
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无溶剂元素直接反应原位生长金属硫化物薄膜:ITO 上 PbS 的案例

DOI:
10.1039/c5ra13640g
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发表时间:
2015-10
期刊:
影响因子:
3.9
通讯作者:
J. Yang
J. Yang
中科院分区:
化学3区
文献类型:
--
作者:
S. Xu;D. Zhang;Z. Zheng;J. Yang

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为了防止金属硫化物薄膜在原位制备过程中从衬底上脱落,开发了无溶剂元素直接反应。为了利用这种新策略,选择硫化铅(PbS)膜在150 °C下在氧化铟锡涂层玻璃(ITO/玻璃)上生长。根据胶带测试结果,所制备的PbS膜在基板上表现出优异的粘附性。X射线衍射(XRD)、X射线能谱(EDX)和X射线光电子能谱(XPS)分析表明,PbS薄膜具有良好的结晶性和接近平衡的化学计量比。此外,所制备的PbS薄膜表现出强烈的蓝移带间吸收。光电化学(PEC)测试表明,该材料具有很好的光敏性和n型导电性。其他重要的性能,如晶体结构,薄膜厚度,电流-电压(I-V)特性,表面粗糙度和形貌进行了详细的研究。
In order to prevent the metal-sulfide film from falling off a substrate during in situ preparation, a solvent-free element-direct reaction was developed. To exploit this new strategy, lead sulfide (PbS) film was selected to grow on Indium-Tin-Oxide-coated glass (ITO/glass) at 150 °C. The prepared PbS film exhibited outstanding adhesion on the substrate according to the tape test results. The analyses of X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) indicated the PbS film possessed good crystallinity and nearly balanced stoichiometry. In addition, the prepared PbS film exhibited intensive blue-shifted interband absorption. Moreover, photoelectrochemical (PEC) measurements illustrated that it possessed great photosensitivity and n-type conductivity. Other important properties such as crystal structure, film thickness, current–voltage (I–V) characteristics, surface roughness and topography were studied in detail.
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