Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 9, Issue 15, Pages 4166-4173Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.8b01752
Keywords
-
Categories
Funding
- Qingdao Science and Technology Commission [16-5-1-86-jch]
- LA BORSF RCS/Endowed Professor programs
- LBRN [P20GM103424]
- ARO [W911NF-15-1-0535]
- NSF [HRD-1137747]
- NASA [NNX15AQ03A]
- Direct For Education and Human Resources [1137747] Funding Source: National Science Foundation
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [P20GM103424] Funding Source: NIH RePORTER
Ask authors/readers for more resources
Inorganic lead halide perovskite quantum dots (PQDs), especially red emission PQDs, are well-known to easily lose their luminescence emission with time, which shows from strong emission of fresh PQDs to no emission of aged PQDs. Here, we demonstrate that trioctylphosphine (TOP) can effectively and instantly recover the luminescence emission of aged red PQDs, making the dead PQDs reborn. Furthermore, TOP also works to improve the emission intensity of freshly synthesized PQDs. In this process, TOP does not make any detectable structural changes to PQDs. Besides, TOP can effectively enhance the stability of PQDs against long-term storage, temperature, UV irradiation, and polar solvents. This unusual emission recovery and stability enhancement by TOP shall promote the understanding of particle surface conditions and the development of PQD devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available