本實驗研究有機五環素元件光電流、單載子與雙載子注入之混合磁電導效應，並證實光電流與雙載子注入磁電導生成來自電子電洞對產生與變換過程，而單載子磁電導生成來自載子在缺陷態傳輸。在外加電場作用下，次要載子的注入使主要載子注入產生之磁電導減弱，而使雙載子注入產生之磁電導增強。在上述觀察中，我們認為單載子與電子電洞對磁電導可以並存，但之間有消長關係，使未來進行磁電導機制的討論有更大的彈性。

The purpose of this thesis is to investigate multiple components of magneto conductance which including photocurrent, unipolar and bipolar injection that contributed to magneto conductance in pentacene-based devices. The photocurrent and bipolar injection contributed magneto conductance is from electron-hole pair formation and energy transfer processes. Also, the unipolar injection magneto conductance is from charge carriers transporting in trap states. In addition, the minority carrier injection can decrease the magneto conductance of majority carrier injection by increasing the electron-hole pair formation. According to results, it is suggested that both single carrier and electron-hole pair contributed magneto conductance could be produced in pentacene-based devices.

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