本研究主要探討以五環素薄膜電晶體作為主要醇類感測器之應用及其機制。利用電晶體以負載型式相連，在感測情況下負載會與濃度之趨勢線成0.98的相關係數，表示具有高度線性相依，且靈敏度會隨通道長度提高而提升。
將感測前後之電晶體進行相互比較與討論。電晶體在感測後之載子移動率會有明顯的下降。在感測後之載子移動率從5.64 cm2s-1V-1，在九公升的容器中注入三毫升感測物的情況下，下降到0.77 cm2s-1V-1。
在驗證部分，利用偏極化拉曼光譜儀與紫外光/可見光光譜儀來進行分析後，發現有機薄膜電晶體在感測後之載子傳輸，不僅受到分子耦合作用力下降影響，亦須考量重組能在感測之後所造成影響；而隨著分子耦合作用力下降與重組能的上升，所造成之載子跳躍率變化，與實驗中電晶體載子移動率的變化有高達0.9887的相關係數，說明了載子跳躍率與電晶體載子移動率的直接關係。且此實驗提供一個全新的模型，當有機半導體以載子跳躍傳輸且受到晶粒邊界的影響，可利用此模型計算出載子跳躍率來預測電晶體載子移動率。
最後本實驗並討論不同蒸氣壓下的醇類感測，如1-pentanol，證明本電晶體能應用於主要醇類感測。

Applications and sensing mechanism of pentacene-based thin film transistors for primary alcohol analytes are fully discussed in this thesis. First, the resistances of sensors using load-connected transistors have high linearity with concentration of analytes, which have high correlation coefficient up to 0.98. Furthermore, the sensitivity increases with longer channel length for more grain boundaries in it.
The mobility of transistors also has obvious decrease with different concentration of analytes. After injecting 3 ml propanol in the chamber of 9 liter, mobility decreases from 5.64 to 0.77 cm2s-1V-1. To clearly quantify the hopping rate affected by analytes stacked in grain boundaries, the intermolecular coupling (transfer integral) effect is verified through theoretical calculation of Davydov Splitting from Raman spectra and experimental results of ultraviolet/visible light (UV/VIS) spectra measurement.
The hopping rate can be calculated from those measurement results by using Marcus-Hush equation. The model of Marcus-Hush equation provided well explanation in the mobility variation of transistors, and high correlation coefficient of 0.9887 was also calculated, indicating that this model can be applied in predicting the mobility trend while carriers in active layer via hopping and are influenced by grain boundaries.
Finally, pentacene-based thin film transistors are also measured with different vaporizations of analytes, such as 1-pentanol, exhibiting suitable detectors for primary alcohol analytes.

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