Microdisk lasers and field effect transistors of thiophene/phenylene co-oligomers by using high temperature deposition method
Microdisk lasers and field effect transistors of thiophene/phenylene co-oligomers by using high temperature deposition method
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DOI：
10.1016/j.orgel.2010.04.026
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发表时间：
2010-07-01
影响因子：
3.2
通讯作者：
Hotta, S.
中科院分区：
文献类型：
--
作者：
Sasaki, F.;Mori, M.;Hotta, S.
在Si/SiO（2）衬底上制备了有机半导体材料噻吩/苯撑共聚低聚物（TPCO）的微盘激光器。采用高温沉积方法提高了有机薄膜的质量，获得了无晶界、无裂纹的微腔。结果成功地制备出了直径为1 μ m的微盘。与体膜部分相比，激光阈值降低到退火体膜部分的2%。减少的一部分来自于晶体膜质量的提高，另一部分来自于小的磁盘尺寸。据我们所知，这是有史以来报道的由有机晶体制成的最小的微盘腔。采用高温沉积法制备的TPCO晶体薄膜也显示出良好的p沟道场效应晶体管工作性能。(c)2010 Elsevier B. V.保留所有权利。
Microdisk lasers of the organic semiconductor material thiophene/phenylene co-oligomer (TPCO) have been fabricated on Si/SiO(2) substrates. Quality of the organic films is improved by using the high temperature deposition method, and microcavities without grain boundaries and cracks are obtained. As a result, microdisks with 1 mu m diameter are fabricated successfully. Comparing with the bulk film part, the lasing threshold is reduced to 2% of the annealed bulk film parts. A part of the reduction comes from the improved quality of crystal films and another part of the reduction from the small disk size. To our knowledge, this is the smallest microdisk cavity made from organic crystals ever reported. The TPCO crystal films fabricated by using the high temperature deposition method also show the good performance of p-channel field effect transistor operation. (c) 2010 Elsevier B.V. All rights reserved.