Colloidal photovoltaic cells

What are colloidal quantum dots?

We describe recent progress in the synthesis of colloidal quantum dots (QDs) and describe their optoelectronic properties and further applications in solar technologies, including solar cells, solar-driven hydrogen production, and luminescent solar concentrators. QDs are fluorescent nanocrystals with nanoscale dimensions (<20 nm).

Are solar cells based on a solution-processed semiconductor nanoparticle a good idea?

Nature Photonics 6, 133–135 (2012) Cite this article Solar cells based on solution-processed semiconductor nanoparticles — colloidal quantum dots — have seen rapid advances in recent years. By offering full-spectrum solar harvesting, these cells are poised to address the urgent need for low-cost, high-efficiency photovoltaics.

Are quantum dot solar cells a viable alternative to conventional devices?

Solar cells based on solution-processed colloidal quantum dots are promising alternatives to conventional devices. This Review discusses recent advances and outstanding challenges for the field of quantum dot solar cells towards their commercialization.

What is a solution-processed photovoltaic?

Solution-processed photovoltaics use low manufacturing temperatures, and have consequently minimized energy expenditure, in their fabrication. Among solution-processed solar technologies, colloidal quantum dots (CQDs) are actively explored, particularly for their spectral tunability at the time of synthesis.

What are solution-processed heterojunction solar cells based on?

Rath, A. K., Bernechea, M., Martinez, L. & Konstantatos, G. Solution-processed heterojunction solar cells based on p-type PbS quantum dots and n-type Bi2S3 nanocrystals. Adv. Mater. 23, 3712–3717 (2011). Rath, A. K. et al. Remote trap passivation in colloidal quantum dot bulk nano-heterojunctions and its effect in solution-processed solar cells.

Are solar cells a solution-phase chemical processing technology?

Third, we focus on progress in solution-phase chemical processing, such as spray-coating and centrifugal casting, which has led to the demonstration of manufacturing-ready process technologies. Solar cells based on solution-processed colloidal quantum dots are promising alternatives to conventional devices.