Spin-Polarized Light-Emitting Diode Based on an Organic Bipolar Spin Valve

Science ◽  
2012 ◽  
Vol 337 (6091) ◽  
pp. 204-209 ◽  
Author(s):  
T. D. Nguyen ◽  
E. Ehrenfreund ◽  
Z. V. Vardeny
Keyword(s):  
Light Emitting Diode ◽  
Spin Valve ◽  
Polarized Light ◽  
Light Emitting ◽  
Spin Polarized

scholarly journals Room-Temperature Spin-Transport Properties in an In0.5Ga0.5As Quantum Dot Spin-Polarized Light-Emitting Diode

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Kohei Etou ◽  
Satoshi Hiura ◽  
Soyoung Park ◽  
Kazuya Sakamoto ◽  
Junichi Takayama ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Transport Properties ◽  
Room Temperature ◽  
Spin Transport ◽  
Light Emitting Diode ◽  
Polarized Light ◽  
Light Emitting ◽  
Spin Polarized

Chiral-induced spin selectivity enables a room-temperature spin light-emitting diode

Science ◽  
2021 ◽  
Vol 371 (6534) ◽  
pp. 1129-1133
Author(s):  
Young-Hoon Kim ◽  
Yaxin Zhai ◽  
Haipeng Lu ◽  
Xin Pan ◽  
Chuanxiao Xiao ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Room Temperature ◽  
Light Emitting Diode ◽  
Polarized Light ◽  
Chiral Molecules ◽  
Circularly Polarized Light ◽  
Light Emitting ◽  
Circularly Polarized ◽  
Spin Polarized ◽  
Spin Led

In traditional optoelectronic approaches, control over spin, charge, and light requires the use of both electrical and magnetic fields. In a spin-polarized light-emitting diode (spin-LED), charges are injected, and circularly polarized light is emitted from spin-polarized carrier pairs. Typically, the injection of carriers occurs with the application of an electric field, whereas spin polarization can be achieved using an applied magnetic field or polarized ferromagnetic contacts. We used chiral-induced spin selectivity (CISS) to produce spin-polarized carriers and demonstrate a spin-LED that operates at room temperature without magnetic fields or ferromagnetic contacts. The CISS layer consists of oriented, self-assembled small chiral molecules within a layered organic-inorganic metal-halide hybrid semiconductor framework. The spin-LED achieves ±2.6% circularly polarized electroluminescence at room temperature.

scholarly journals Room Temperature GaN-Based Edge-Emitting Spin-Polarized Light Emitting Diode

2017 ◽  
Vol 29 (3) ◽  
pp. 338-341 ◽  
Author(s):  
Aniruddha Bhattacharya ◽  
Zunaid Baten ◽  
Thomas Frost ◽  
Pallab Bhattacharya
Keyword(s):  
Room Temperature ◽  
Light Emitting Diode ◽  
Polarized Light ◽  
Light Emitting ◽  
Spin Polarized

scholarly journals Co-planar spin-polarized light-emitting diodes

2006 ◽  
Vol 88 (9) ◽  
pp. 091106 ◽  
Author(s):  
B. Kaestner ◽  
J. Wunderlich ◽  
J. Sinova ◽  
T. Jungwirth
Keyword(s):  
Light Emitting Diodes ◽  
Polarized Light ◽  
Light Emitting ◽  
Spin Polarized

Reduction of Reflected Light On Fluorescence Emission for Indocyanine Green

2021 ◽  
Author(s):  
So Yoon Kwon ◽  
Ki-Cheol Yoon ◽  
Kwang Gi Kim
Keyword(s):  
Blood Vessel ◽  
Indocyanine Green ◽  
Blood Vessels ◽  
Light Emitting Diode ◽  
Polarized Light ◽  
Fluorescence Emission ◽  
Light Reflection ◽  
Light Emitting ◽  
Surgical Microscope ◽  
Reflected Light

Abstract Inside the brain tumor, the blood vessels are intricately composed, and the tumors and blood vessels are similar in color. Therefore, when observing tumors and blood vessels with the naked eye or a surgical microscope, it is difficult to distinguish between tumors and blood vessels. Fluorescence staining with indocyanine green (ICG) is performed to distinguish between brain tumors and blood vessels using a surgical microscope. However, when observing the blood circulation state of a tumor or blood vessel through a surgical microscope, light reflection occurs from the camera. In the process of observing the state of the blood vessel, due to the occurrence of light reflection, an obstruction phenomenon in which the observation field is blocked by the blood vessel of the object to be observed occurs. Therefore, it is difficult to diagnose the vascular condition. In this experiment, the 780nm light-emitting diode (LED) was irradiated to the ICG phantom, and then, when the fluorescence expression image was observed, the polarizing filter such as circular polarized light (CPL) filter and linear polarized light (LPL) filter were inserted into the camera and the reflected light was reduced. Therefore, it is possible to reduce the reflected light from the fluorescence expression image by using a polarizing filter, and it is expected to be applicable to surgery and diagnostic fields of cancer such as surgery.

Effect of Polarized Light Emitting Diode Irradiation on Wound Healing

2009 ◽  
Vol 67 (5) ◽  
pp. 1073-1079 ◽  
Author(s):  
Kaoru Tada ◽  
Kazuo Ikeda ◽  
Katsuro Tomita
Keyword(s):  
Wound Healing ◽  
Light Emitting Diode ◽  
Polarized Light ◽  
Light Emitting
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