Charged Polaron Polaritons in an Organic Semiconductor Microcavity
Charged Polaron Polaritons in an Organic Semiconductor Microcavity
复制标题
DOI：
10.1103/physrevlett.120.017402
复制
发表时间：
2018-01-03
影响因子：
8.6
通讯作者：
Giebink, Noel C.
中科院分区：
文献类型：
--
作者：
Cheng, Chiao-Yu;Dhanker, Rijul;Giebink, Noel C.
报道了室温下掺杂有机半导体微腔中光与极化子光激发的强耦合。MoO_3和空穴传输材料4，4 '-环己叉基双[N，N-双（4-甲基苯基）苯胺]的共沉积引入了大的空穴密度，其具有中心在1.8eV的窄线宽光学跃迁和超过104 cm（-1）的吸收系数。耦合这种过渡到法布里-珀罗腔模式产生上，下极化子极化激元分支，清楚地解决了角度依赖的反射率与真空拉比分裂。h Ω（R）> 0.3eV。这一结果建立了一个路径，以电控制极化激元在有机半导体，并可能导致增加极化激元-极化激元库仑相互作用，降低阈值的非线性现象，如极化激元凝聚和激光。
We report strong coupling between light and polaron optical excitations in a doped organic semiconductor microcavity at room temperature. Codepositing MoO3 and the hole transport material 4, 4'-cyclohexylidenebis[N, N-bis(4-methylphenyl) benzenamine] introduces a large hole density with a narrow linewidth optical transition centered at 1.8 eV and an absorption coefficient exceeding 104 cm(-1). Coupling this transition to a Fabry-Perot cavity mode yields upper and lower polaron polariton branches that are clearly resolved in angle-dependent reflectivity with a vacuum Rabi splitting. h Omega(R) > 0.3 eV. This result establishes a path to electrically control polaritons in organic semiconductors and may lead to increased polariton-polariton Coulombic interactions that lower the threshold for nonlinear phenomena such as polariton condensation and lasing.