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F8BT∶P3HT共混薄膜的放大自发辐射
  • ISSN号：1000-7032
  • 期刊名称：《发光学报》
  • 时间：0
  • 分类：O484.4[理学—固体物理;理学—物理]
  • 作者机构：[1]北京交通大学光电子技术研究所发光与光信息技术教育部重点实验室
  • 相关基金：国家自然科学基金(61275175,61077022,61177017,61377028);国家杰出青年科学基金(61125505)资助项目
作者： 程浩[1], 侯延冰[1], 秦亮[1], 胡煜峰[1], 娄志东[1], 滕枫[1]
关键词： 放大的自发辐射, 聚合物共混波导, 阈值, 发光效率, 损耗系数
中文摘要：

研究了聚合物poly(9,9-dioctylfluorene-co-benzothiadiazole)(F8BT)和poly(3-hexylthiophene)(P3HT)共混薄膜的放大自发辐射(ASE)现象,对影响其阈值的两个因素——增益和损耗进行了详细的研究。结果显示,共混聚合物的发光效率随着P3HT所占比例的增加有所降低。当P3HT比例低于20%时,发光效率降低不多,而其损耗则随着P3HT的增加显著减小。F8BT和P3HT混合后,光损耗系数从7.8 cm-1下降到4 cm-1左右。这表明F8BT∶P3HT共混聚合物光波导的ASE阈值降低主要是由于其损耗的降低而导致的。ASE阈值的降低预示该材料体系容易实现电泵浦激光。

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期刊信息
  • 《发光学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会发光分会 中国科学院长春光学精密机械与物理研究所
  • 主编：申德振
  • 地址：长春市东南湖大路3888号
  • 邮编：130033
  • 邮箱：fgxbt@126.com
  • 电话：0431-86176862
  • 国际标准刊号：ISSN：1000-7032
  • 国内统一刊号：ISSN：22-1116/O4
  • 邮发代号:12-312
  • 获奖情况:
  • 物理学类核心期刊,2000年获中国科学院优秀期刊二等奖,中国期刊方阵“双效”期刊
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  • 被引量:7320