本論文改善了原先的感測器結構，此結構具有簡易製成、成本低廉且能在較低的驅動電壓下得到較高的電流值，使其更能匹配至較低規格的量測系統。主要以兩種材料作為感測材料，第一種材料可在5V驅動電壓下可達到數個µA之電流，100ppb的氨氣可達到1.9%的響應值，且在一般空氣下保存，壽命可達40天；第二種材料則在2V驅動電壓下亦可達到數個µA之電流，100ppb的氨氣可達到1.8%的響應值，在一般空氣下保存壽命可長達70天。
　　本論文亦改良量測魚肉新鮮度的感測系統，使系統更為簡便，且可明確鑑別出新鮮與在35℃放置12小時的魚肉；利用此簡易系統針對不同樣品做感測，發現本論文中使用的元件對氨氣以外的物質可能亦具有感測能力，且使用不同材料之晶片可得到相似的結果，故未來可針對選擇性做更深入的測試。

The aim of this thesis is we improved the structure about the organic semiconductor gas sensor. This structure is simple, low cost and can be in the lower applied voltage to get a higher current value. So that it can match to the lower specification of the measurement system. We use two material as sensing layer. One of them can reach several microampere on five volt. The maximum response for 100ppb ammonia gas is 1.8%, and the lifetime is 40 days. The other has several microampere on two volt. The maximum response for 100ppb ammonia gas is 1.9%, and the lifetime is 70 days.
We also improve the system about the freshness of fish. We can distinguish the freshness about the fish stored in 35℃ 12 hours with the fresh fish. We can use this simple system to sense different samples. We can sense other substance which is not ammonia, and get the similar results by using different sensor. We can do more analysis in future.

中文摘要 i
Abstract ii
致謝 iii
目錄 v
圖目錄 vii
表目錄 ix
Chapter1 緒論 1
1-1 研究動機 1
1-2 先期成果 3
Chapter2 有機材料介紹與元件操作原理 5
2-1 有機材料簡介 5
2-1.1 共軛高分子材料 5
2-1.2 材料特性 7
2-2 有機二極體的操作原理 11
2-3 金屬與半導體接面原理 12
2-4 載子傳輸理論與空間電荷限制理論 16
2-4.1 塊材限制 16
2-4.2 接面限制 17
2-5 熱離子發射理論與穿隧效應 18
Chapter3 氣體感測元件製程及量測 20
3-1 標準有機氣體感測元件製程 20
3-1.1 基板之圖樣定義製程 20
3-1.2 標準側壁(sidewall)結構製程 22
3-1.3 標準單層平面膜結構製程 27
3-1.4 標準奈米線結構製程 29
3-2 量測系統架設介紹 32
3-3 氣體感測機制 35
Chapter4 平面雙層結構元件 37
4-1 平面雙層結構元件製程 37
4-2 元件感測結果 40
4-2.1 TFB以銀奈米線作上電極之結構感測結果 40
4-2.2 TFB雙層結構感測結果 42
4-2.3 PTB7側壁結構感測結果 44
4-2.4 PTB7單層無介面處理層 46
4-2.5 PTB7雙層結構感測結果 47
4-2.6 平面膜結構移除除濕管 50
Chapter5 感測器應用 52
5-1 魚肉無氣袋感測結果 52
5-2 雞蛋感測結果 56
5-3 手部氣味量測結果 58
Chapter6 結論與未來展望 61
6-1 結論 61
6-2 未來展望 63
參考文獻 64

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