Efficient, air-stable colloidal quantum dot solar cells encapsulated using atomic layer deposition of a nanolaminate barrier

Journal Article · Mon Dec 23 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4858135· OSTI ID:22253217

Ip, Alexander H.; Labelle, André J.

Atomic layer deposition was used to encapsulate colloidal quantum dot solar cells. A nanolaminate layer consisting of alternating alumina and zirconia films provided a robust gas permeation barrier which prevented device performance degradation over a period of multiple weeks. Unencapsulated cells stored in ambient and nitrogen environments demonstrated significant performance losses over the same period. The encapsulated cell also exhibited stable performance under constant simulated solar illumination without filtration of harsh ultraviolet photons. This monolithically integrated thin film encapsulation method is promising for roll-to-roll processed high efficiency nanocrystal solar cells.

• OSTI ID: 22253217
• Journal Information: Applied Physics Letters, Vol. 103, Issue 26; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
EFFICIENCY
ENCAPSULATION
ENVIRONMENT
FILTRATION
ILLUMINANCE
PERFORMANCE
PHOTONS
QUANTUM DOTS
SIMULATION
SOLAR CELLS
THIN FILMS