期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 28, 页码 18334-18338出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b04092
关键词
titanium trisulfide; carrier dynamics; nanoribbon; transient absorption; exciton
资金
- National Science Foundation of USA [DMR-1505852, IIA-1430493]
- National Science Foundation through the Nebraska Materials Research Science and Engineering Center (MRSEC) [DMR-1420645]
- National Science Foundation [ECCS-1509874]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1508494] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1509874] Funding Source: National Science Foundation
- Office Of The Director
- Office of Integrative Activities [1430519, 1430493] Funding Source: National Science Foundation
We report synthesis and time-resolved transient absorption measurements of TiS3 nanoribbons. TiS3 nanoribbons were fabricated by direct reaction of titanium and sulfur. Dynamics of the photocarriers in these samples were studied by transient absorption measurements. It was found that following ultrafast injection of nonequilibrium and hot photocarriers, the thermalization, energy relaxation, and exciton formation all occur on a subpicosecond time scale. Several key parameters describing the dynamical properties of photocarriers, including their recombination lifetime, diffusion coefficient, mobility, and diffusion length, were deduced.
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