摘要
针对传统光电成像传感器对紫外响应的敏感度不高,通过研究有机金属配价物的发光机理与光致发光特性,用真空蒸镀的方法制备出有机金属配价物三(8-羟基喹啉)铝(Alq3)薄膜。用紫外光激发Alq3薄膜发现有较强的黄绿光产生,中心波长位于510nm左右,并且激发光谱较宽(250nm~425nm)。该薄膜在可见光波段有很好的透过性,这使得可见光可以透射薄膜,基本无损失地到达传感器光敏感窗,从而增强了光电成像传感器的紫外响应。
Traditional Optoelectric imaging sensors have lower response in ultraviolet region particularly.This paper has investigated the luminescence mechanism and photoluminescence properties of organometallic compound tris-(8-hydroxyquinoline) aluminum thin films,which are deposited on quartz substrates by means of vacuum evaporation.It is showed that these coatings are emitted a green glow centered at ~ 510 nm,together with a wide excitation spectrum field from 250 nm to 425 nm.The films have such a nice permeability in visual field that ‘the ultraviolet radiation’ transmits the film to the silicon window of sensor with little loss,enhancing the ultraviolet responsibility of image sensors.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2010年第6期86-88,92,共4页
Polymer Materials Science & Engineering
基金
上海市科学技术委员会资助项目(08ZR1415400上海市自然科学基金 08DZ2272800上海市现代光学系统重点实验室建设项目 09QA1404200上海市科技启明星)
国家自然科学基金资助项目(60908021)
上海市研究生创新基金项目(JWCXSL0902)