Long-lived excited states dynamics of sky-blue emitting 9,10-bis [9-hexyl-6-((E)-styryl)-9H-carbazol-3-yl] anthracene derivatives have been investigated by means of time-correlated single photon counting and quasi-continuous wavelength photo-induced absorption (QCW-PIA) spectroscopies. The QCW-PIA is a versatile tool to investigate the long-lived photo-excited species with lifetimes ranging from microsecond to millisecond time scale. In this time regime, mobile and trapped polarons were recognized, and their long and short mean lifetimes were estimated using a modulation frequency dependence technique at 20 K.

中文翻译：

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使用准连续波长光致吸收测定薄膜蒽衍生物中的长寿命光激发物种

已通过时间相关研究了天蓝色发射 9,10-双 [9-己基-6-((E)-苯乙烯基)-9H-咔唑-3-基] 蒽衍生物的长寿命激发态动力学单光子计数和准连续波长光致吸收 (QCW-PIA) 光谱。QCW-PIA 是一种多功能工具，用于研究寿命从微秒到毫秒时间尺度的长寿命光激发物种。在这个时间范围内，可以识别移动和被困极化子，并使用 20 K 的调制频率相关技术估计它们的长短平均寿命。