17989035. CADMIUM FREE QUANTUM DOTS simplified abstract (Samsung Electronics Co., Ltd.)

CADMIUM FREE QUANTUM DOTS

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Yuho Won of Seoul (KR)

Nayoun Won of Suwon-si, Gyeonggi-do (KR)

Sungwoo Hwang of Suwon-si (KR)

Eun Joo Jang of Suwon-si (KR)

Soo Kyung Kwon of Suwon-si (KR)

Yong Wook Kim of Yongin-si (KR)

Jihyun Min of Seoul (KR)

Garam Park of Seoul (KR)

Shang Hyeun Park of Yongin-si (KR)

Hyo Sook Jang of Suwon-si (KR)

Shin Ae Jun of Seongnam-si (KR)

Yong Seok Han of Anyang-si (KR)

CADMIUM FREE QUANTUM DOTS - A simplified explanation of the abstract

This abstract first appeared for US patent application 17989035 titled 'CADMIUM FREE QUANTUM DOTS

Simplified Explanation

The abstract of the patent application describes a cadmium-free quantum dot that consists of a semiconductor nanocrystal core made of indium and phosphorous, a first semiconductor nanocrystal shell made of zinc and selenium, and a second semiconductor nanocrystal shell made of zinc and sulfur. The abstract also mentions the composition and composite including the quantum dot, as well as its potential application in electronic devices.

• The patent application describes a cadmium-free quantum dot.
• The quantum dot includes a semiconductor nanocrystal core made of indium and phosphorous.
• The quantum dot also includes a first semiconductor nanocrystal shell made of zinc and selenium.
• Additionally, the quantum dot includes a second semiconductor nanocrystal shell made of zinc and sulfur.
• The patent application also covers the composition and composite including the cadmium-free quantum dot.
• The technology has potential applications in electronic devices.

Potential Applications

The cadmium-free quantum dot technology described in the patent application has the potential to be used in various electronic devices, including:

• Display screens: The quantum dots can be used to enhance the color accuracy and brightness of displays, such as LCD and OLED screens.
• Lighting: Quantum dots can be incorporated into LED lighting systems to improve color rendering and efficiency.
• Solar cells: The unique properties of quantum dots can be utilized to enhance the efficiency of solar cells by capturing a broader range of light wavelengths.
• Biological imaging: Quantum dots can be used as fluorescent markers in biological imaging applications, allowing for more precise and sensitive detection.

Problems Solved

The technology described in the patent application addresses several problems associated with traditional quantum dots that contain cadmium, including:

• Environmental concerns: Cadmium is a toxic heavy metal, and its use in quantum dots raises environmental and health concerns. The cadmium-free quantum dots eliminate these concerns.
• Regulatory restrictions: Many countries have regulations in place that restrict or ban the use of cadmium in electronic devices. The cadmium-free quantum dots provide a solution that complies with these regulations.
• Performance limitations: Cadmium-based quantum dots may suffer from issues such as degradation over time and limited color range. The cadmium-free quantum dots offer improved performance and stability.

Benefits

The cadmium-free quantum dot technology offers several benefits, including:

• Environmental friendliness: By eliminating cadmium, the quantum dots reduce the environmental impact associated with their production, use, and disposal.
• Regulatory compliance: The technology allows manufacturers to comply with regulations restricting the use of cadmium in electronic devices.
• Improved performance: The cadmium-free quantum dots provide enhanced color accuracy, brightness, and stability compared to traditional cadmium-based quantum dots.
• Expanded applications: The technology opens up new possibilities for using quantum dots in various electronic devices, including displays, lighting, solar cells, and biological imaging.

Original Abstract Submitted

A cadmium free quantum dot not including cadmium and including: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, a composition and composite including the same, and an electronic device.