Tunable Spin Characteristic Properties in Spin Valve Devices Based on Hybrid Organic–Inorganic Perovskites
- Univ. of Utah, Salt Lake City, UT (United States)
- Louisiana State Univ., Baton Rouge, LA (United States); Fudan Univ. (China)
- Univ. of Utah, Salt Lake City, UT (United States); North Carolina State Univ., Raleigh, NC (United States)
The hybrid organic–inorganic perovskites (HOIPs) form a new class of semiconductors which show promising optoelectronic device applications. Remarkably, the optoelectronic properties of HOIP are tunable by changing the chemical components of their building blocks. Recently, the HOIP spintronic properties and their applications in spintronic devices have attracted substantial interest. Here the impact of the chemical component diversity in HOIPs on their spintronic properties is studied. Additionally, spin valve devices based on HOIPs with different organic cations and halogen atoms are fabricated. The spin diffusion length is obtained in the various HOIPs by measuring the giant magnetoresistance (GMR) response in spin valve devices with different perovskite interlayer thicknesses. In addition spin lifetime is also measured from the Hanle response. It is found that the spintronic properties of HOIPs are mainly determined by the halogen atoms, rather than the organic cations. The study provides a clear avenue for engineering spintronic devices based on HOIPs.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Center for Hybrid Organic-Inorganic Semiconductors for Energy (CHOISE); Univ. of Utah, Salt Lake City, UT (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC36-08GO28308; SC0014579; SC000213
- OSTI ID:
- 1767510
- Alternate ID(s):
- OSTI ID: 1558819
- Journal Information:
- Advanced Materials, Vol. 31, Issue 41; ISSN 0935-9648
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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journal | November 2019 |
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Related Subjects
catalysis (homogeneous)
solar (photovoltaic)
solid state lighting
optics
phonons
mechanical behavior
charge transport
magnetism and spin physics
quantum information science
materials and chemistry by design
synthesis (novel materials)
Hanle effect
hybrid organic-inorganic perovskites
spin valve device
spintronics