室溫單層分佈 CsPbBr3 量子點塔米電漿激子極化子之特性研究

Abstract

本實驗運用熱注入法所合成的鈣鈦礦量子點來作為增益介質，再與經過設計 的塔米電漿結構做結合，主要目的是為了達到形成塔米電漿子垂直型共振腔雷射 (VCSEL)。透過 355 nm, 50 ps 重複率 1k 的脈衝雷射作為激發光源來激發鈣鈦礦 量子點，藉由將單層之鈣鈦礦量子點嵌入塔米電漿共振腔所產生低反射的特徵模 態，也藉由塔米電漿共振腔產生的局域性強電場來增強鈣鈦礦量子點發光效率。 又使當鈣鈦礦量子點所激發出的光子與材料中的激子因特徵模態的限制從而產 生強耦合機制而展現了同時都身為玻色子所具有的凝聚現象時，產生與雷射相同 特性的低閥值高 Q 值(Quality factor)的同調光。

In this experiment, the perovskite quantum dots synthesized by the thermal injection method are used as the gain medium, and then combined with the designed Tami plasma structure. The main purpose is to form a Tami plasma vertical resonant cavity laser (VCSEL). The perovskite quantum dots are excited by 355 nm, 50 ps repetition rate 1k pulse laser as the excitation light source. By embedding single- layer perovskite quantum dots into the Tami plasma resonance cavity, the characteristic mode of low reflection is produced. The luminous efficiency of perovskite quantum dots is also enhanced by the strong local electric field generated by the Tami plasma resonance cavity. And when the photons excited by the perovskite quantum dots and the excitons in the material exhibit a strong coupling mechanism due to the limitation of the characteristic mode, and exhibit the condensation phenomenon that both are bosons at the same time, there will be a collision with thunder. Simultaneous dimming with low threshold and high Q value (Quality factor) with the same characteristics.