摘要
電潤濕現象是利用外加電位差來減少固體與液體的介面能量，改變液滴於固體表面的潤濕特性，藉此來增進固體表面與液體間的潤濕行為。而各種不同的參數對液滴在電潤濕上的移動現象有極大的影響，本論文將改變三種參數（如施加電壓、電極大小及液滴劑量），以共平面式電潤濕實驗及流道式電潤濕實驗配置探討液滴在各種不同參數上造成液滴移動現象，並觀察共平面式與流道式電潤濕實驗的相互關係。 研究結果發現，當電壓越大時，造成液滴的接觸角改變量越大，使液滴移動速率越快，當液滴劑量越少時，其液滴的接觸角也越大，使液滴移動速率越快，而當電極間距越小，越容易使液滴接觸至下個電極造成移動。而流道式的試片，因為受到流道的影響始液滴的接觸角較小，導致液滴不易於移動。
並列摘要
Electrowetting on dielectric (EWOD) allows the controlled change of the contact angle of a liquid droplet by applying a voltage between liquid droplet and an electrode. By applying a voltage between the droplet and the electrode, an electric field is generated which leads to an additional surface energy term in the system, and thereby effectively reducing the interfacial energy between the liquid and the substrate. In this thesis, a droplet-based motion system which has the advantages of simple fabrications. The approach is based on a structured dielectric layer providing defined pinning barriers for the droplet while preserving the positioning accuracy of the liquid droplet. By use of voltage pulses, the droplet is shifted from one defined position to the next.
參考文獻
延伸閱讀
- 吳定恭（2007）。實驗探討水滴電潤濕反應現象〔碩士論文，國立虎尾科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0028-1501201314421164
- 陳定隆（2014）。液滴於具結構親溶液表面之蒸發現象及濕潤行為〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2014.00911
- 沈明慧（2021）。電場下液滴在介電層上運動的機制〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU202100545
- Chuang, Y. C. (2013). 液滴在具結構疏水表面上的揮發與濕潤現象 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2013.02657
- 陳信建（2010）。Enhance droplet mixing by resonance phenomenon〔碩士論文，國立清華大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0016-1901201111405407