Properties of droplet formation made by cone jet using a novel capillary with an external electrode |
| |
| Affiliation: | 1. Tsukuba Research Laboratory, Hamamatsu Photonics K.K., 5-9-2 Tokodai, Tsukuba, Ibaraki, 300-2635, Japan;2. Central Research Laboratory, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita, Shizuoka, Japan;3. Department Ecological Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi, 441-8580, Japan;1. Department of Electrical and Electronic Engineering, University of Stellenbosch, Stellenbosch, 7602, South Africa;2. Department of Physics, University of Stellenbosch, Stellenbosch, 7602, South Africa;1. Department of Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST), Japan;2. Department of Environmental Engineering, HanSeo University, South Korea;3. Department of Astronomy, Earth Physics and Meteorology, Comenius University, Slovakia;4. ESI, Universidad de Sevilla, Spain;1. Sciver, Wilgenstraat 38, 2861 TP Bergambacht, The Netherlands;2. Delft University of Technology, Faculty of Applied Sciences, Julianalaan 67, 2628 BC Delft, The Netherlands;3. Wetsus, Agora 1, 8934 CJ Leeuwarden, The Netherlands |
| |
| Abstract: | A capillary with an external electrode for cone-jet mode of electrospray has been developed to spot a droplet accurately on a substrate surface. The external electrode is made by gold deposition around tip of a glass capillary. The electrospray was made by applying a positive pulsed dc voltage to the solution in the capillary. Using a positive bias voltage to the external electrode, the meniscus of the solution at the tip deformed to be more sharp, and center of the meniscus was prolonged. This deformation stabilized the trajectory of the jet from the Taylor cone at the tip. From the experimental result, accuracy of positioning of the droplet having 0.3 pL volume was improved with the standard deviation of 1.1 μm, from that of 2.5 μm for conventional capillary without the external electrode. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
