物理化学学报 >> 2015, Vol. 31 >> Issue (11): 2109-2116.doi: 10.3866/PKU.WHXB201509151

电化学和新能源 上一篇    下一篇

Sb2S3纳米粒子修饰ZnO纳米片微纳分级结构的光电化学性能

郝彦忠1,2(),郭志敏1,孙宝2,裴娟2,王尚鑫2,李英品2   

  1. 1 河北科技大学化学与制药工程学院,石家庄050018
    2 河北科技大学理学院,石家庄050018
  • 收稿日期:2015-04-08 发布日期:2015-11-13
  • 基金资助:
    国家自然科学基金(21173065);河北省自然科学基金(B2014208062, B2014208066, B2010000856)

Photoelectrochemical Properties of Hierarchical ZnO Nanosheets Micro-Nanostructure Modified with Sb2S3 Nanoparticles

Yan-Zhong. HAO1,2(),Zhi-Min. GUO1,Bao. SUN2,Juan. PEI2,Shang-Xin. WANG2,Ying-Pin. LI2   

  1. 1 College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, P. R. China
    2 College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, P. R. China
  • Received:2015-04-08 Published:2015-11-13
  • Supported by:
    the National Natural Science Foundation of China(21173065);Natural Science Foundation of Hebei Province,China(B2014208062, B2014208066, B2010000856)

摘要:

采用恒电位方法,选择氯化钾和乙二胺(EDA)为添加剂,在氧化铟锡(ITO)导电玻璃上制备了高度有序的ZnO纳米片阵列,通过二次电沉积得到了ZnO纳米片上生长纳米棒的微纳分级结构.利用化学浴沉积法在ZnO基底上沉积Sb2S3纳米粒子制备出了Sb2S3/ZnO纳米片壳核结构和Sb2S3/ZnO微纳分级壳核结构.利用扫描电子显微镜(SEM)、X射线衍射(XRD)、紫外-可见(UV-Vis)吸收光谱、瞬态光电流等对其形貌、结构组成和光电化学性能进行了表征和分析.结果表明, Sb2S3/ZnO纳米片上生长纳米棒分级壳核结构的光电流明显高于Sb2S3/ZnO纳米片壳核结构.在Sb2S3/ZnO纳米片壳核结构和Sb2S3/ZnO微纳分级壳核结构的基础上旋涂一层P3HT薄膜形成P3HT/Sb2S3/ZnO复合结构,以上述复合结构薄膜为光活性层组装成杂化太阳电池,其中, P3HT/Sb2S3/ZnO分级壳核结构杂化太阳电池的能量转换效率最高,达到了0.81%.

关键词: Sb2S3纳米粒子, ZnO纳米片, ZnO纳米片上生长纳米棒微纳分级结构, 壳核式结构, 杂化太阳电池

Abstract:

We fabricated highly ordered ZnO nanosheet arrays on ITO substrates by adding KCl and ethylenediamine(EDA) through potentiostatic deposition, then produced a hierarchical structure of ZnO nanorods on the nanosheets by using secondary electrodeposition. Shell-core Sb2S3/ZnO nanostructures were prepared from ZnO nanosheets and ZnO nanorods on nanosheets by chemical bath deposition. The nanostructures were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD), and their photoelectrochemical properties were investigated using ultraviolet-visible spectroscopy (UV-Vis) and photocurrent measurements. The shell-core Sb2S3/ZnO based on the hierarchical micronanostructure had higher photocurrent than did the shell-core Sb2S3/ZnO nanosheets. A hybrid solar cell was fabricated with a P3HT/Sb2S3/ZnO film as the photoactive layer. The P3HT/Sb2S3/ZnO hierarchical electrode exhibited an energy conversion efficiency as high as 0.81%.

Key words: Sb2S3 nanoparticle, ZnO nanosheet, Hierarchical ZnO micro-nanostructure of nanorods on nanosheets, Shell-core structure, Hybrid solar cell

MSC2000: 

  • O649