Wireless portable light-weight self-charging power packs by perovskite-organic tandem solar cells integrated with solid-state asymmetric supercapacitors

• Published in: Nano energy Vol. 78; p. 105397
• Main Authors: Zhu, Tao, Yang, Yongrui, Liu, Yanghe, Lopez-Hallman, Raymond, Ma, Zhihao, Liu, Lei, Gong, Xiong
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-12-2020
• Subjects: Integrated electric circuit; Solid-state asymmetric supercapacitors; Solution-processed intermediate layers; Tandem solar cells; Wireless portable light-weight self-charging power packs; Wireless portable light-weight self-charging power packs; Integrated electric circuit; Tandem solar cells; Solid-state asymmetric supercapacitors; Solution-processed intermediate layers
• ISSN: 2211-2855
• DOI: 10.1016/j.nanoen.2020.105397

Self-charging power packs possess great potential applications in the micro-systems, but these electric circuits are required to be portable, light-weight and even wireless connected for practical applications, in particular, in the wearable and portable electronics. In this study, we report wireless portable light-weight solution-processed self-charging power packs by tandem solar cells integrated with solid-state asymmetric supercapacitors through solution-processed electrical conductive polymeric thin film. Towards the end, we first develop solution-processed tandem solar cells by perovskite solar cells (PSCs) combined with ternary organic solar cells (OSCs) for achieving large operational voltage. We then develop solid-state asymmetric supercapacitors by both novel positive electrode and solid-state polymeric electrolytes for enhancing the energy density and cycling stability. After that, we integrate PSCs–OSCs tandem solar cells with solid-state asymmetric supercapacitors through solution-processed electrical conductive polymeric thin film to build wireless portable light-weight solution-processed self-charging power packs. This novel self-charging power packs not only possess advanced features such as portable, light-weight and wireless connection, but also exhibit excellent electric-circuit device performance, such as with an overall efficiency of 12.43% and an energy storage efficiency of 72.4% under white light illumination. All these results demonstrate that the wireless portable light-weight self-charging power packs through utilization of tandem solar cells as the renewable energy source and solid-state asymmetric supercapacitors as the energy storage device connected with solution-processed electrical conductive polymeric thin film, for the first time, are developed.
Solution-processed wireless portable light-weight self-charging power packs by tandem solar cells integrated with solid-state asymmetric supercapacitors through solution-processed electrical conductive polymeric thin film, exhibiting an overall efficiency of 12.43% and an energy storage efficiency of 72.4% under white light illumination, was reported. [Display omitted]
•An overall efficiency of 12.43% solution-processed wireless portable light-weight self-charging power pack.•Solution-processed tandem solar cells by perovskite and organic solar cells.•Solution-processed solid-state asymmetric supercapacitors by novel electrodes and solid state polymeric electrolytes.