- No Data
English
- English
- 简体中文
- 繁体中文
- Français
- Русский
- Italiano
- 日本語
- 한국어
- Português
- Deutsch
- Español
- Türkçe
- Ελληνικά
- Nederlands
- Tiếng Việt
- Polski
English
A new type of electrically driven organic semiconductor laser can be used in the fields of spectroscopy, metrology, and sensing
101
2023-10-07 16:48:45
According to a report from Maims Consulting, scientists at the University of St. Andrews in the UK recently stated that they have made a "significant breakthrough" in the decades of challenges in developing compact organic semiconductor laser technology.
Firstly, an OLED with a world record light output was manufactured, and then integrated with a polymer laser structure. This new type of laser emits a green laser beam composed of short light pulses.
Structure of electrically driven organic semiconductor lasers
The paper published in the journal Nature explains how the research team at the University of St. Andrews overcomes common organic semiconductor problems such as low current density and intolerable losses caused by injecting charges into the gain medium.
The paper points out that "researchers have achieved loss reduction by developing an integrated device structure that effectively combines OLEDs with extremely high internal light generation capabilities with polymer distributed feedback lasers. Under the electrical driving of the integrated structure, the threshold of light output and driving current can be observed, with a narrow emission spectrum and the formation of a laser beam above the threshold.
The research results provide an organic electronic device that has never been proven before, and indicate that indirect electric pumping of OLEDs is a very effective method for achieving electrically driven organic semiconductor lasers. This provides a method for visible light lasers that can be applied in the fields of spectroscopy, metrology, and sensing.
The conclusion of the paper is: "Researchers have demonstrated an integrated device method that can achieve electrically driven lasers in organic semiconductors, thus solving an important challenge in organic optoelectronics. This method overcomes the main difficulties commonly encountered in direct electrical injection attempts of organic or hybrid perovskite lasers, while retaining operational advantages.
Original link：https://www.eet-china.com/mp/a256224.html
Source: MEMS, Breadboard Community - Core Language
Related Recommendations
The Key Role of Laser Pointing Stability in the Application of Lithography Systems
Lithography is one of the core processes in semiconductor manufacturing, and extreme ultraviolet lithography technology, as a new generation lithography technology, is also in a rapid development stage. The basic principle is to use photoresist (also known as photoresist) to form corrosion resistance due to photochemical reactions after being photosensitive, and to engrave the patterns on the mask...
2024-07-02Shanghai Optics and Machinery Institute has made progress in the development of picosecond reflectors based on composite materials
Recently, the High Power Laser Element Technology and Engineering Department of the Shanghai Institute of Optics and Mechanics, Chinese Academy of Sciences, has made progress in the research of picosecond reflectors based on composite materials. The relevant research results are titled "Hybrid material based mirror coatings for picosecond laser applications" and published in Optics and Laser Techn...
2024-06-12Professor Wu Dong's team at the University of Science and Technology of China created a "dancing microrobot" using femtosecond laser composite materials.
It was learned from the University of Science and Technology of China that the team of Professor Wu Dong of the Micro and Nano Engineering Laboratory of the school proposed a femtosecond laser two-in-one multi-material processing strategy, manufactured a micromechanical joint composed of temperature-sensitive hydrogel and metal nanoparticles, and then developed a multi-joint humanoid micromachine ...
2023-08-11Enhanced laser heterodyne spectroscopy contributes to the measurement of atmospheric greenhouse gases
The research team led by Professor Gao Xiaoming of the Chinese Academy of Sciences Hefei Institute of Physical Sciences has improved the measurement accuracy of atmospheric greenhouse gases by using erbium-doped fiber amplifier assisted laser heterodyne radiometer.The study was published in the Journal of Optics and was selected as an editor's selection.LHR is renowned for its high sensitivity and...
2023-10-25The creator of a computer that uses lasers to perform complex tasks at the speed of light has announced a breakthrough in high-performance computing
LightSolver's new LPU100 system is powered by 100 lasers and can solve the most challenging problems through up to 120100 combinations.This computer was created by Dr. Ruti Ben Shlomi, CEO of LightSolver and Dr. Chen Tradonsky, CTO, a physicist at the Rehowatt Weizmann Institute for Science.It is not suitable for household use because its high computing power exceeds individual needs, but it is su...
2024-03-21