A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes
In the preceding review paper, Paper I [Journal of Science: Advanced Materials and Devices 1 (2016) 128–140], we showed the major experimental and theoretical studies on the first organic spintronic subject, namely organic magnetoresistance (OMAR) in organic light emitting diodes (OLEDs). The topic...
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doaj-87cf5a36160c4ae3aa140ffe206236912020-11-24T22:54:13ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792016-09-011325627210.1016/j.jsamd.2016.08.006A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodesRugang Geng0Hoang Mai Luong1Timothy Tyler Daugherty2Lawrence Hornak3Tho Duc Nguyen4Department of Physics and Astronomy, The University of Georgia, Athens, GA 30602, USADepartment of Physics and Astronomy, The University of Georgia, Athens, GA 30602, USADepartment of Physics and Astronomy, The University of Georgia, Athens, GA 30602, USACollege of Engineering, The University of Georgia, Athens, GA 30602, USADepartment of Physics and Astronomy, The University of Georgia, Athens, GA 30602, USAIn the preceding review paper, Paper I [Journal of Science: Advanced Materials and Devices 1 (2016) 128–140], we showed the major experimental and theoretical studies on the first organic spintronic subject, namely organic magnetoresistance (OMAR) in organic light emitting diodes (OLEDs). The topic has recently been of renewed interest as a result of a demonstration of the magneto-conductance (MC) that exceeds 1000% at room temperature using a certain type of organic compounds and device operating condition. In this report, we will review two additional organic spintronic devices, namely organic spin valves (OSVs) where only spin polarized holes exist to cause magnetoresistance (MR), and spin organic light emitting diodes (spin-OLEDs) where both spin polarized holes and electrons are injected into the organic emissive layer to form a magneto-electroluminescence (MEL) hysteretic loop. First, we outline the major advances in OSV studies for understanding the underlying physics of the spin transport mechanism in organic semiconductors (OSCs) and the spin injection/detection at the organic/ferromagnet interface (spinterface). We also highlight some of outstanding challenges in this promising research field. Second, the first successful demonstration of spin-OLEDs is reviewed. We also discuss challenges to achieve the high performance devices. Finally, we suggest an outlook on the future of organic spintronics by using organic single crystals and aligned polymers for the spin transport layer, and a self-assembled monolayer to achieve more controllability for the spinterface.http://www.sciencedirect.com/science/article/pii/S2468217916301332MagnetoresistanceOrganic spintronicsSpin transportSpin diffusion lengthTunneling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rugang Geng Hoang Mai Luong Timothy Tyler Daugherty Lawrence Hornak Tho Duc Nguyen |
spellingShingle |
Rugang Geng Hoang Mai Luong Timothy Tyler Daugherty Lawrence Hornak Tho Duc Nguyen A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes Journal of Science: Advanced Materials and Devices Magnetoresistance Organic spintronics Spin transport Spin diffusion length Tunneling |
author_facet |
Rugang Geng Hoang Mai Luong Timothy Tyler Daugherty Lawrence Hornak Tho Duc Nguyen |
author_sort |
Rugang Geng |
title |
A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes |
title_short |
A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes |
title_full |
A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes |
title_fullStr |
A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes |
title_full_unstemmed |
A review on organic spintronic materials and devices: II. Magnetoresistance in organic spin valves and spin organic light emitting diodes |
title_sort |
review on organic spintronic materials and devices: ii. magnetoresistance in organic spin valves and spin organic light emitting diodes |
publisher |
Elsevier |
series |
Journal of Science: Advanced Materials and Devices |
issn |
2468-2179 |
publishDate |
2016-09-01 |
description |
In the preceding review paper, Paper I [Journal of Science: Advanced Materials and Devices 1 (2016) 128–140], we showed the major experimental and theoretical studies on the first organic spintronic subject, namely organic magnetoresistance (OMAR) in organic light emitting diodes (OLEDs). The topic has recently been of renewed interest as a result of a demonstration of the magneto-conductance (MC) that exceeds 1000% at room temperature using a certain type of organic compounds and device operating condition. In this report, we will review two additional organic spintronic devices, namely organic spin valves (OSVs) where only spin polarized holes exist to cause magnetoresistance (MR), and spin organic light emitting diodes (spin-OLEDs) where both spin polarized holes and electrons are injected into the organic emissive layer to form a magneto-electroluminescence (MEL) hysteretic loop. First, we outline the major advances in OSV studies for understanding the underlying physics of the spin transport mechanism in organic semiconductors (OSCs) and the spin injection/detection at the organic/ferromagnet interface (spinterface). We also highlight some of outstanding challenges in this promising research field. Second, the first successful demonstration of spin-OLEDs is reviewed. We also discuss challenges to achieve the high performance devices. Finally, we suggest an outlook on the future of organic spintronics by using organic single crystals and aligned polymers for the spin transport layer, and a self-assembled monolayer to achieve more controllability for the spinterface. |
topic |
Magnetoresistance Organic spintronics Spin transport Spin diffusion length Tunneling |
url |
http://www.sciencedirect.com/science/article/pii/S2468217916301332 |
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