Improving on the interparticle connection for performance enhancement of flexible quantum dot sensitized solar cells. (September 2018)

• Record Type: Journal Article
• Authors: Peng, Zhuoyin; Liu, Zhou; Liu, Yueli; Chen, Jianlin; Li, Cong; Li, Wei; Liao, Lida; Chen, Jian
• Is Part Of: Materials research bulletin. Volume 105(2018)
• Page Start: 91
• Page End: 97
• Publication Date: 2018-09
• Subjects: Flexible quantum dot sensitized solar cell -- Interparticle connection -- Photovoltaic performance enhancement; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2018.04.039
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Different curving conditions: (a) Scheme, (b) J-V curves. Highlights: TiO2 slurries have been prepared by a three-step process for the photo-anode of flexible solar cells. Interparticle connection of photo-anodes has been improved in flexible solar cells. This flexible QDSSCs exhibits excellent photovoltaic performance and charge transfer property. There has excellent curving stability on the photovoltaic performance of flexible QDSSCs. Abstract: Flexible photovoltaic devices have wide applications in many unique areas. However, the interparticle connection of photo-electrode in flexible photovoltaic devices still needs to be improved. Here, TiO2 slurries have been prepared by a three-step process, which are employed to prepare the photo-anode for flexible CuInS2 quantum dot sensitized solar cells (QDSSCs). 5 nm-sized TiO2 nanoparticles and hydrochloric acid (HCl) have been introduced in 20 nm-sized TiO2 based photo-electrodes under TiO2 /HCl mass ratio of 3:1, which exhibits excellent photovoltaic performance and charge transfer property. Due to the interparticle connection enhancement by suitable content of 5 nm-sized TiO2 nanoparticles, photo-anodes with the 20/5-TiO2 nanoparticles mass ratio of 3:1 exhibits the better optical absorption property and photovoltaic performance of flexible QDSSCs. Moreover, there has maintained 98% photovoltaic conversion efficiency of flexible QDSSCs with the seriously curving condition, which can be considered the great foreground in future applications.