Lab Affiliation(s):
Quantum Nanostructures and Nanofabrication
Karl K. Berggren
Areas of Expertise:
  • Nanofabrication and Lithography
  • Nanoelectronics
  • Materials self-assembly and growth
Expected date of graduation:
June 1, 2016

Sam Nicaise

  • PhD


  • Electrical Engineering and Computer Science

Lab Affiliation(s): 

Quantum Nanostructures and Nanofabrication


Karl K. Berggren

Top 3 Areas of Expertise: 

Nanofabrication and Lithography
Materials self-assembly and growth

Expected date of graduation: 

June 1, 2016


Thesis Title: 

Template-based Control for Bottom-up Nanostructures - Multilayer Block Copolymer Graphoepitaxy and Masked ZnO NW Growth

Thesis Abstract: 

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): 

National Science Foundation Graduate Research Fellowship, 2010
MIT Infinite Mile Award, 2015
Dupont-MIT Alliance Fellowship, 2010
Hertz Fellowship Semifinalist, 2010
Eagle Scout Award, 2005

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
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