Back to Search
Start Over
Efficient Nanocrystal Photovoltaics via Blade Coating Active Layer
- Source :
- Nanomaterials, Vol 11, Iss 1522, p 1522 (2021), Nanomaterials
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- CdTe semiconductor nanocrystal (NC) solar cells have attracted much attention in recent year due to their low-cost solution fabrication process. However, there are still few reports about the fabrication of large area NC solar cells under ambient conditions. Aiming to push CdTe NC solar cells one step forward to the industry, this study used a novel blade coating technique to fabricate CdTe NC solar cells with different areas (0.16, 0.3, 0.5 cm2) under ambient conditions. By optimizing the deposition parameters of the CdTe NC’s active layer, the power conversion efficiency (PCE) of NC solar cells showed a large improvement. Compared to the conventional spin-coated device, a lower post-treatment temperature is required by blade coated NC solar cells. Under the optimal deposition conditions, the NC solar cells with 0.16, 0.3, and 0.5 cm2 areas exhibited PCEs of 3.58, 2.82, and 1.93%, respectively. More importantly, the NC solar cells fabricated via the blading technique showed high stability where almost no efficiency degradation appeared after keeping the devices under ambient conditions for over 18 days. This is promising for low-cost, roll-by-roll, and large area industrial fabrication.
- Subjects :
- CdTe nanocrystals
Materials science
Fabrication
General Chemical Engineering
02 engineering and technology
engineering.material
010402 general chemistry
01 natural sciences
Coating
Photovoltaics
General Materials Science
QD1-999
Deposition (law)
large area fabrication
business.industry
blade coating
Communication
Energy conversion efficiency
021001 nanoscience & nanotechnology
Cadmium telluride photovoltaics
0104 chemical sciences
Active layer
Chemistry
Nanocrystal
engineering
Optoelectronics
0210 nano-technology
business
Subjects
Details
- Language :
- English
- ISSN :
- 20794991
- Volume :
- 11
- Issue :
- 1522
- Database :
- OpenAIRE
- Journal :
- Nanomaterials
- Accession number :
- edsair.doi.dedup.....339ea0e6f11a30467d2f7b6d0fbb5790