17953533. ELECTROLUMINESCENT DEVICE AND SEMICONDUCTOR NANOPARTICLE simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)
ELECTROLUMINESCENT DEVICE AND SEMICONDUCTOR NANOPARTICLE
Organization Name
Inventor(s)
Jeong Hee Lee of Suwon-si (KR)
Hyo Sook Jang of Suwon-si (KR)
Seonmyeong Choi of Suwon-si (KR)
ELECTROLUMINESCENT DEVICE AND SEMICONDUCTOR NANOPARTICLE - A simplified explanation of the abstract
This abstract first appeared for US patent application 17953533 titled 'ELECTROLUMINESCENT DEVICE AND SEMICONDUCTOR NANOPARTICLE
Simplified Explanation
An electroluminescent device is described in this patent application. The device consists of two electrodes and a light emitting layer containing semiconductor nanoparticles. The semiconductor nanoparticles used in this device do not contain cadmium and are made up of zinc, selenium, tellurium, and sulfur. These nanoparticles have a core-shell structure, with a core made of a first semiconductor nanocrystal and a shell surrounding it. The first semiconductor nanocrystals contain sulfur and are part of the zinc chalcogenide family. The mole ratio of sulfur to tellurium in the nanoparticles is between 0.5:1 and 110:1. The nanoparticles are designed to emit light with a wavelength between 440 nm and 580 nm, and they have a high quantum yield of at least 40%.
- The electroluminescent device includes two electrodes and a light emitting layer with semiconductor nanoparticles.
- The semiconductor nanoparticles used in the device do not contain cadmium.
- The nanoparticles have a core-shell structure, with a core made of a first semiconductor nanocrystal and a shell surrounding it.
- The first semiconductor nanocrystals in the nanoparticles contain sulfur and are part of the zinc chalcogenide family.
- The mole ratio of sulfur to tellurium in the nanoparticles is between 0.5:1 and 110:1.
- The nanoparticles emit light with a wavelength between 440 nm and 580 nm.
- The nanoparticles have a high quantum yield of at least 40%.
Potential Applications
This technology has potential applications in various fields, including:
- Lighting: The electroluminescent device can be used for energy-efficient lighting solutions.
- Displays: The device can be utilized in the development of high-quality displays for electronic devices.
- Optoelectronics: The semiconductor nanoparticles can be integrated into optoelectronic devices for various applications.
Problems Solved
This technology addresses several problems in the field of electroluminescent devices, such as:
- Cadmium-free alternative: By using semiconductor nanoparticles that do not contain cadmium, the device offers a safer and more environmentally friendly option.
- High quantum yield: The nanoparticles have a quantum yield of at least 40%, ensuring efficient light emission.
- Tunable emission wavelength: The device can emit light within a specific wavelength range, allowing for customization and compatibility with different applications.
Benefits
The use of this technology offers several benefits, including:
- Environmental friendliness: The absence of cadmium in the semiconductor nanoparticles reduces the environmental impact.
- Energy efficiency: The electroluminescent device provides energy-efficient lighting and display solutions.
- Customizability: The emission wavelength of the device can be tailored to specific requirements, enabling versatility in various applications.
Original Abstract Submitted
An electroluminescent device includes a first electrode and a second electrode spaced apart from each other, and a light emitting layer including semiconductor nanoparticles. The semiconductor nanoparticles do not contain cadmium, the semiconductor nanoparticles include zinc, selenium, tellurium, and sulfur, the semiconductor nanoparticles have a core-shell structure including a core including a first semiconductor nanocrystal and a shell disposed on the core, the first semiconductor nanocrystals include a first zinc chalcogenide containing sulfur, in the semiconductor nanoparticles, a mole ratio of sulfur to tellurium is greater than or equal to about 0.5:1 and less than or equal to about 110:1, and the semiconductor nanoparticles are configured to emit light having a maximum emission peak wavelength of greater than or equal to about 440 nanometers (nm) and less than or equal to about 580 nm, and the semiconductor nanoparticles have a quantum yield of greater than or equal to about 40%.
