本篇論文的研究在於探討量子點碲化鎘與第二型量子點碲化鎘/硒化鎘/硫化鋅所組成之複合物,在摻入奈米金柱且激發奈米金柱的表面電漿子之後,對於此兩種量子點間的能量傳遞與其發光機制的影響。藉由使用光激螢光光譜、時間解析螢光光譜及吸收光譜,我們研究碲化鎘藉由螢光共振能量傳遞的機制將載子傳遞至碲化鎘/硒化鎘/硫化鋅量子點並於此複合放光。在摻入奈米金柱與第二道激發光源之後,表面電漿子得以被激發,因而創造出一個更佳的共振環境,使得碲化鎘/硒化鎘/硫化鋅量子點發光的現象更加增強。藉此研究,我們希望這樣的成果有助於在光電元件方面的應用與製作。
In this thesis, we have demonstrated the fluorescence resonance energy transfer (FRET) between CdTe QDs and type II CdTe/CdSe/ZnS QDs. The results obtained by photoluminescence (PL), time-resolved photoluminescence (TRPL), and absorption measurements indicate that the energy of electron-hole pairs in CdTe QDs can be transferred to CdTe/CdSe/ZnS QDs via FRET. In addition, it is also found that the efficiency of FRET can be enhanced by surface plasmons. Based on the results, it should be very useful for many applications, such as in biosensors and other optoelectronics devices.