近年來，患有慢性腎臟疾病人口比例急遽增加，以往透過傳統的抽血方式來檢驗血中尿素氮含量並判斷腎臟功能是否正常，此法雖能精準得知受測者之腎臟狀況，但卻無法立即得知結果，而呼氣氨檢測在近幾年因採非侵入式且具有快速、低成本等特性，在現今社會上也已被視為具有高度潛力的檢測方式。本研究團隊致力發展有機半導體氨氣感測器，在短時間內經由簡易的呼氣方式來得到參考值，若有異常即可立即尋求醫療協助。

然而，有機材料相當懼怕大氣中的水氧，對於感測器有著一定的影響，隨著長時間使用且多次暴露在大氣環境下都會使氨氣反應與電流明顯的衰退，導致在檢測時可能因靈敏度的下降或電流訊號的不穩造成參考值的偏移，因此本論文一大主題為針對這兩大問題點進行研究，透過不同條件的測試及材料混合的方式來改善有機半導體氣體感測器之電流及氨氣反應的穩定性。

而本論文另一大主題為在量測中加入照光，探討利用光照射氨氣感測器後氨氣反應的變化及特性，並嘗試採用不同材料作為氣體感測器之主動層，並觀察其不同的特徵變化，期望藉由照光方式來提升元件之性能。

本論文分為三大部分，第一章至三章會先介紹研究動機、有機半導體氣體感測器穩定性、相關半導體製程原理及知識以及照光後材料之特性探討，第四章將會詳細探討元件氨氣反應及電流穩定性的改善，而第五章則會討論各種材料照光後之特性變化。

In recent years, the proportion of the population suffering from chronic kidney disease has increased rapidly. In the past, traditional blood sampling was used to test the blood urea nitrogen content and determine whether the kidney function is normal. Although this method can accurately know the kidney condition of the subject,but the results cannot be known immediately. In recent years, breath ammonia detection has been regarded as a detection method with high potential due to its non-invasive, rapid and low-cost characteristics.The research team is committed to developing an organic semiconductor ammonia sensor, which can obtain a reference value through a simple exhalation method in a short period of time. If there is an abnormality, you can immediately seek medical assistance.

However, organic materials are quite afraid of water and oxygen in the atmosphere, which have a certain impact on the sensor. With long-term use and multiple exposures to the atmosphere, the ammonia response and current will be significantly degraded, resulting in possible detections due to the decrease in sensitivity or the instability of the current signal and the reference value is shifted. Therefore, a major theme of this thesis is to study these two problems,improve the stability of the ammonia response and the current of the organic semiconductor gas sensor through different conditions of testing and material mixing.

Another major theme of this thesis is adding illumination to the measurement, discussing the changes and characteristics of the ammonia response after irradiating the ammonia sensor, and trying to use different materials as the active layer of the gas sensor and observe it different feature changes, it is expected that the performance of the device will be improved by lighting.

This thesis is divided into three parts. Chapters 1 to 3 will first introduce the research motivation, the stability of organic semiconductor gas sensors, the principle and knowledge of related semiconductor processes, and the discussion of the characteristics of materials after illumination. Chapter 4 will discuss in detail the stability improvement of ammonia response and the current, and the fifth chapter will discuss the characteristic changes of various materials after light irradiation.

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