2 Nanotubes Anchored with ZnS/CdSSe/CdS Quantum Dots Formed by Sequential Ionic Bath Deposition" /> 期刊论文

期刊论文详细信息
Bulletin of the Korean chemical society
Solar Energy Conversion by the Regular Array of TiO2 Nanotubes Anchored with ZnS/CdSSe/CdS Quantum Dots Formed by Sequential Ionic Bath Deposition
Myung Soo Kim1  Yeonju Seo1  Seonghoon Lee1  Soojeong Park1 
关键词: TiO2 nanotubes;    Quantum dots;    SILAR;    Solar cell;   
DOI  :  
学科分类:化学(综合)
来源: Korean Chemical Society
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【 摘 要 】

The photoanode electrode of TiO2 nanotubes (NTs) anchored with ZnS/CdSSe/CdS quantum dots (QDs) was prepared by anodization of Ti metal and successive ionic layer adsorption and reaction (SILAR) procedure. The tuning of the band gap of CdSSe was done with controlled composition of Cd, S, or Se during the SILAR. A ladder-like energy structure suitable for carrier transfer was attained with the photoanode electrode. The power conversion efficiency (PCE) of our solar cell fabricated with the regular array of TiO2 NTs anchored with CdSSe/CdS or CdSe/CdS QDs [i.e., (CdSSe/CdS /TiO2NTs) or (CdSe/CdS /TiO2NTs )] was PCE = 3.49% and 2.81% under the illumination at 100 mW/cm2, respectively. To protect the photocorrosion of our solar cell from the electrolyte and to suppress carrier recombination, ZnS was introduced onto CdSSe/CdS. The PCE of our solar cell with the structure of a photoanode electrode, (ZnS/CdSSe/CdS/TiO2 NTs/Ti) was 4.67% under illumination at 100 mW/cm2.

【 授权许可】

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