Efficiency enhancement of PbS quantum dots-sensitized nanocrystalline SnO2 thin film prepared by two-phase method
文献类型：期刊论文
| 作者 | Meng, Ling1,2,3; Liu, Yingru1; Zhang, Jingbo1; Bai, Shouli2; Luo, Ruixian2; Chen, Aifan2; Lin, Yuan3 |
| 刊名 | JOURNAL OF SOLID STATE ELECTROCHEMISTRY
 |
| 出版日期 | 2016 |
| 卷号 | 20期号:1页码:29-36 |
| 关键词 | Homogeneous deposition of monodispersed PbS quantum dots Two-phase method Quantum dots-sensitized solar cell Efficiency enhancement |
| 英文摘要 | A novel two-phase method was employed to directly deposit PbS quantum dots (QDs) on nanocrystalline SnO2 thin films. In the two-phase method, the nanocrystalline SnO2 thin film with adsorption of Pb2+ ions was placed in an aqueous solution, and S2- ions were dissolved in an oil solution. As two solutions were contacted, S2- ions prefer to transfer to the aqueous solution and diffuse to the thin film surface with the adsorbed Pb2+ ions to homogeneously form monodispersed PbS QDs on the nanocrystalline thin film. The homogeneous monodispersed QDs-sensitized thin film was used as a photoelectrode to fabricate QDs-sensitized solar cell. The loaded amount of PbS QDs and the thickness of ZnS passivation layer were optimized to obtain the highest light-to-electric conversion efficiency of 1.01 % under the simulated AM 1.5 illumination, which is increased by 61 % compared with that of the PbS QDs-sensitized solar cell employing the successive ionic layer adsorption and reaction (SILAR). The solar cell with homogeneous sensitization of QDs generates a photocurrent density of 11.09 mA center dot cm(-2), which is 2.4 times higher than that of the unhomogeneous one prepared by SILAR. The conversion efficiency enhancement mechanism due to the two-phase method was discussed in detail through the measurements of intensity-modulated photovoltage spectrum and electrochemical impedance spectroscopy. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29770]  |
| 专题 | 化学研究所_光化学实验室 |
| 作者单位 | 1.Tianjin Normal Univ, Tianjin Key Lab Struct & Performance Funct Mol, Key Lab Inorgan Organ Hybrid Funct Mat Chem, Minist Educ,Coll Chem, Tianjin 300387, Peoples R China 2.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Photochem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Ling,Liu, Yingru,Zhang, Jingbo,et al. Efficiency enhancement of PbS quantum dots-sensitized nanocrystalline SnO2 thin film prepared by two-phase method[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2016,20(1):29-36. |
| APA | Meng, Ling.,Liu, Yingru.,Zhang, Jingbo.,Bai, Shouli.,Luo, Ruixian.,...&Lin, Yuan.(2016).Efficiency enhancement of PbS quantum dots-sensitized nanocrystalline SnO2 thin film prepared by two-phase method.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,20(1),29-36. |
| MLA | Meng, Ling,et al."Efficiency enhancement of PbS quantum dots-sensitized nanocrystalline SnO2 thin film prepared by two-phase method".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 20.1(2016):29-36. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。