Specifically, solar cell materials with strong light absorption (which reduce the solar cell thickness) and high flexibility that can be prepared at low temperature to allow for deposition on thin plastic substrates are therefore highly interesting. Other solar cell technologies are therefore needed for these applications. Therefore, it is difficult to use silicon-based solar cells in applications that require highly flexible and extremely lightweight solar cells.
1–8 The dominating silicon-based solar cell technology is based on silicon wafers, which are brittle and rather thick.
Solarcell ir coating portable#
Introduction Flexible and lightweight solar cells have attracted considerable attention due to the possibility of use in interesting applications, such as spacecrafts, aircrafts, portable or wearable power supplying devices, or on curved surfaces of buildings or automobiles to supply electric power, or indoor and outdoor decorations for multifunctioning. These results reveal that the CQDs are very promising materials for realizing flexible, efficient and extremely lightweight solar cells that makes it possible for utilization of solar energy in many new applications.ġ. In particular, the solar cell also exhibits promising stability both under continuous illumination and after storage under ambient conditions. The demonstrated CQD solar cell shows good mechanical properties and works during large compression–stretching deformation.
Solarcell ir coating full#
The thickness of the full solar cell is less than 2 μm and the device gives ∼10% power conversion efficiency with an extremely low weight of 6.5 g m −2, resulting in a high power-per-weight output of ∼15 W g −1. The solar cell is fabricated on a 1.3 μm-thick flexible polyethylene naphthalate foil substrate and an Ag nanowire network with strong mechanical properties and a large aspect ratio and is used as a transparent and conductive front-electrode. In this study, we report an ultra-flexible and extremely lightweight PbS CQD solar cell. Moreover, the PbS CQD possesses the advantages of solution-processability, size-dependent optoelectronic properties and a broad light absorption spectrum covering the ultraviolet-visible-near infrared wavelength region. PbS colloidal quantum dots (CQD) are promising candidates for the fabrication of flexible and lightweight solar cells due to their nanocrystal character, which enables functioning energy conversion even in the case when the solar cell is under extreme deformation. Broader context Ultra-flexible and lightweight solar cells with high power output per weight have attracted much attention due to their high potential for utilization in applications such as spacecraft, aircraft, personal pack load and wearable electronic devices. These results reveal that solution-processed CQDs are compatible with an ultra-flexible substrate for the construction of ultra-lightweight infrared light-converting CQD solar cells with possibilities for new exciting solar energy applications. Moreover, the flexible CQD solar cell shows impressive stability both under continuous illumination and after storage under ambient conditions. The flexible solar cell possesses durable mechanical properties and maintains high-level photovoltaic performance under extreme deformation and after repeated compression–stretching deformation. The thickness of the complete CQD solar cell is less than 2 μm, and ∼10% PCE with a weight of 6.5 g m −2 is achieved, resulting in a power-per-weight output of 15.2 W g −1. A solution-processed Ag nanowire network with excellent mechanical, optical and electrical properties was prepared as the front-electrode in the solar cell. Herein, we report an extremely lightweight and ultra-flexible CQD solar cell constructed on a polyethylene naphthalate substrate with a thickness of 1.3 μm. PbS colloidal quantum dots (CQDs) exhibit a broad and strong light absorption spectrum covering the ultraviolet-visible-near infrared region, allowing for incorporation of very thin CQD films into solar cells with high power conversion efficiency (PCE) from solar light to electricity. Lightweight and flexible solar cells are highly interesting materials for use in new applications, such as spacecraft, aircraft and personal pack load.
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