콘텐츠 본문
논문 해외 국제전문학술지(SCI급) [Particuology] Assembly of charged aerosols on non-conducting substrates via ion-assisted aerosol lithography (IAAL)
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2017-03
- 저자명 Seunghyon Kang, Wooik Jung, Dae Seong Kim, Sei Jin Park, Mansoo Choi*
- 학술지명 Particuology
- 발행처명 Elesevier
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
논문 초록 (Abstract)
The development of ion-assisted aerosol lithography (IAAL) has enabled fabrication of complex threedimensional nanoparticle (NP) structures on conducting substrates. In this work, the applicability of the IAAL technique was investigated on non-conducting substrates. The NP structure growth process on a non-conducting substrate was found to self-terminate and the structures subsequently repel incoming charged NPs and scatter them away. Electric field calculations supported the experimental findings and confirmed that the electric field distortions owing to charge build-up within the structures prevented additional NP deposition thereon. To regulate the charge build-up without compromising the number of NPs available for assembly, a corona discharger and an ion trap were implemented. By varying the number of ions available in the assembly process, an optimum level of ion injection was found that allowed for a prolonged (>120 min) assembly of NP structures on non-conducting substrates without the unwanted scattering of NPs.
