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首页> 外文期刊>Advanced Functional Materials >Pyrene-Capped Conjugated Amorphous Starbursts: Synthesis, Characterization, and Stable Lasing Properties in Ambient Atmosphere
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Pyrene-Capped Conjugated Amorphous Starbursts: Synthesis, Characterization, and Stable Lasing Properties in Ambient Atmosphere

机译：包覆的共轭无定形爆炸：在大气中的合成，表征和稳定的激光性能。

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摘要

A family of trigonal starburst conjugated molecules (TrFPy, TrFPy, and TrF2Py) composed of a truxene core and pyrene cappers with various bridge lengths is synthesized and characterized. The incorporation of pyrene cappers successfully depress the crystallization tendency, resulting in enhanced glassy temperature and improved morphological stability of the thin films. The high photoluminescence yield in neat films and excellent thermal stability render these pyrene-capped starbursts promising lasing optical gain media. Low amplified spontaneous emission (ASE) thresholds (E-th(ASE)) of 180 nJ pulse(-1) and 101 nJ pulse(-1) were recorded for TrFPy and TrF2Py, respectively. One dimensional distributed feedback (1D DFB) lasers demonstrated lasing threshold of 9.3 kW/cm(2) and 7.3 kW/cm(2) for TrFPy (at 457 nm) and TrF2Py lasers (at 451 nm), respectively. The ASE performance of TrFPy and TrF2Py in an ambient condition was recorded with various annealing temperature (from 80 to 250 degrees C, 10 min). Surprisingly, TrFPy exhibited excellent ASE stability in an ambient condition, which is still detectable even after annealing at 250 degrees C for 10 min. The results suggest the pyrene-capped molecular design strategy is positive on improving the optical gain stability and meanwhile maintaining excellent lasing properties.
机译：合成并表征了由方戊烯核和具有不同桥长的cap键帽组成的三角星爆共轭分子家族（TrFPy，TrFPy和TrF2Py）。掺入pers盖帽剂成功地抑制了结晶趋势，导致玻璃化温度提高和薄膜的形态稳定性提高。整齐的薄膜中的高光致发光产率和出色的热稳定性使这些pyr盖帽的星爆有望成为激光光学增益介质。对于TrFPy和TrF2Py，分别记录了180 nJ脉冲（-1）和101 nJ脉冲（-1）的低放大自发发射（ASE）阈值（E-th（ASE））。一维分布式反馈（1D DFB）激光器的TrFPy（在457 nm）和TrF2Py激光器（在451 nm）的激光阈值分别为9.3 kW / cm（2）和7.3 kW / cm（2）。用各种退火温度（从80到250摄氏度，10分钟）记录TrFPy和TrF2Py在环境条件下的ASE性能。出乎意料的是，TrFPy在环境条件下表现出出色的ASE稳定性，即使在250摄氏度下退火10分钟后，仍然可以检测到。结果表明the分子的设计策略对于提高光学增益稳定性并同时保持优异的激光性能是积极的。

著录项

  • 来源
    《Advanced Functional Materials》 |2015年第29期|4617-4625|共9页
  • 作者

    Xu Weidong; Yi Jianpeng; Lai Wen-Yong; Zhao Li; Zhang Qi; Hu Wenbo; Zhang Xin-Wen; Jiang Yi; Liu Ling; Huang Wei;

  • 作者单位

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China|Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, KLOFE, Nanjing 211816, Jiangsu, Peoples R China|Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, IAM, Nanjing 211816, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat, KLOEID, Nanjing 210023, Jiangsu, Peoples R China|Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, KLOFE, Nanjing 211816, Jiangsu, Peoples R China|Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, IAM, Nanjing 211816, Jiangsu, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    amplified spontaneous emission; organic lasers; pyrene; starburst molecules; truxene;

    机译：放大自发发射;有机激光;py;星爆分子;甲苯;

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