http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Brad Culkin (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
정효수,Kris Keller,Brad Culkin 한국물리학회 2017 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.70 No.6
Non-vacuum process technology was used to produce Cs3Sb photocathodes on substrates, and insitu panel devices were fabricated. The performance of the devices was characterized by measuring the anode current as functions of the devices’ operation times. An excitation light source with a 475-nm wavelength was used for the photocathodes. The device has a simple diode structure, providing unique characteristics such as a large gap, vertical electron beam directionality, and resistance to surface contamination from ion bombardment and poisoning by outgassing species. Accordingly, Cs3Sb photocathodes function as flat emitters, and the emission properties of the photocathode emitters depend on the vacuum level of the devices. An improved current stability has been observed after conducting an electrical conditioning process to remove possible adsorbates on the Cs3Sb flat emitters.
-
Fabrication of Large-area, Planar, UV Lighting Devices Based on flat Cs3Sb Photocathode Emitters
Jeong Hyo-Soo,Keller Kris,Culkin Brad 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.76 No.12
Planar lighting devices are ideal for many applications. Requirements for planar lighting devices are high luminance and good luminance uniformity, together with low power consumption. In this article, a large-area, planar lighting device with high luminance, excellent luminance uniformity, and controllable luminance characteristic that was successfully demonstrated for visible light emission is discussed. The same device with sufficient UV intensity and tunable intensity for UV light emission is also discussed. The design concept involves a diode panel structure that utilizes photocathodes operated in a reflection mode with an external excitation light source. The excitation light source is in the blue-visible light range. Commercially available phosphors are used as light sources for both visible and UV emissions. The light emission characteristic of the devices is investigated by measuring the optical and the electrical parameters as functions of the applied anode voltage. The results show that the luminance is high for visible light emission and that the intensity is sufficient for UV light emission. In particular, UV emission exhibits a characteristic of cold-UV light with a near-monochromatic spectrum. The optical and the electrical properties of the large-area planar device are good enough for many industrial applications.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
