- Electrical Engineering and Computer Science
Top 3 Areas of Expertise:
Expected date of graduation:
Bottom-up growth and assembly of nanostructures provides a versatile and rapid patterning method, without the requirement of designing or engineering every feature. The control over this method is limited by standard material science practices, and template-directed fabrication is required for higher-levels of control. This thesis investigates the design and understanding of engineered templates for control over bottom-up nanostructured materials. Specifically, multiple layers of block copolymer cylindrical microdomains are controlled by underlying physical patterns. Also, the placement and morphology of hydrothermally grown ZnO nanowires is understood and controlled for more efficient heterojunction nanostructure solar cells.
Top 5 Awards and honors (name of award, date received):
5 Recent Papers:
A. Tavakkoli K. G., S. M. Nicaise, K. R. Gadelrab, A. Alexander-Katz, C. A. Ross, K. K. Berggren, (2016) “Multilayer block copolymer meshes by orthogonal self-assembly,” Nature Communications (7).
J.J. Cheng, S.M. Nicaise, A. Kiani, K.K. Berggren, S. Gradecak, (2016) “Dimensional tailoring of hydrothermally-grown zinc oxide nanowire arrays,” Nano Letters 16(1), 753-759
S.M. Nicaise, J.J. Cheng, A. Kiani, S. Gradecak, K.K. Berggren, (2014), "Control of zinc oxide nanowire array properties with electron beam lithography templating for PV applications," Nanotechnology, 075303
Amir Tavakkoli K. G., Samuel M. Nicaise, Adam F. Hannon, Kevin W. Gotrik, Alfredo Alexander-Katz, Caroline A. Ross, Karl K. Berggren, (2014), "Sacrificial-Post Templating Method for Block Copolymer Self-Assembly," Small, 418
Donald Winston , Vitor R Manfrinato , Samuel M Nicaise , Lin Lee Cheong , Huigao Duan , David Ferranti , Jeff Marshman , Shawn McVey , Lewis A Stern , John A Notte , and Karl Berggren, (2011), “Neon Ion Beam Lithography (NIBL),” Nano Letters, 4343-4347