화합물 반도체가 LED Color에 미치는 영향 연구

• 영문명: A Study on the Effect of LED Color for the Compound Semiconductor
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 김명식(Myoung-shik Kim)
• 간행물 정보: 『한국산업기술융합학회 학술대회 논문집』2015년 후반기 학술대회 논문집, 39~43쪽, 전체 5쪽
• 주제분류: 공학 > 산업공학
• 파일형태: PDF
• 발행일자: 2015.11.13

영문 초록

A Light-emitting diode(LED)is a two-lead semiconductor light source. It is a p-n junction diode, which emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes wituin the device, releasing energy in the form of photons. This effect is called electroluminescence, and the color of the light(corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor. An LED is often small in area(less than 1 mm²)and integrated optical components may be used to shape its radiation pattern. Early LEDs were often used as indicator lamps for electronic devices, replacing small incandescent bulbs. Rescent developments in LEDs permit them to be used in environmental and task lighting. LEDs have many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching. LEDs have allowed new text, video displays, and sensors to be developed, while their high switching rates are also useful in advanced communications technology.

키워드

Lead 소자 다리 Light-Source 광원 P-N Junction Diode PN접합 다이오드 Holes 정공 Photons 광자