Skip to main content Accessibility help

Block Copolymer Templating for Formation of Quantum Dots and Lattice Mismatched Semiconductor Structures

  • Smita Jha (a1), Chi-Chun Liu (a2), Joo Hyung Park (a3), Monika K. Wiedmann (a4), T S Kuan (a5), Susan E. Babcock (a6), Luke J. Mawst (a7), Paul Nealey (a8) and Thomas F. Kuech (a9)...


Templated growth for the fabrication of semiconductor nanostructures such as quantum dots and lattice-mismatched structures has been employed in this study. Self assembly of block copolymers (BCP) has been exploited to create a regular array of nanoscale patterns on a substrate to generate the growth template. These patterned templates were used for the selective area growth of pseudomorphic quantum dots, allowing for precise control over the dot size and spatial distribution. Strain relaxation in lattice-mismatched structures grown past the pseudomorphic limit was also studied. Analysis of the grown structures suggests that this approach using block copolymer templating followed by selective growth can be used for defect reduction in lattice-mismatched materials.



Hide All
1 Mei, X. Kim, D. Ruda, H.E. and Guo, Q. X. Applied Physics Letters 81, 361 (2002).
2 Liang, J. Luo, H. Beresford, R. and Xu, J. Applied Physics Letters 85, 5974 (2004).
3 Kiravittaya, S. Rastelli, A. and Schmidt, O.G, Applied Physics Letters 87, 243112 (2005).
4 Li, R. R. Dapkus, P.D. Thompson, M.E. Jeong, W. G. Harrison, C. Chaikin, P.M, Register, R.E and Adamson, D.H. Applied Physics Letters 76, 1689 (2000).
5 In, I. La, Y.H. Park, S.M. Nealey, P.F. and Gopalan, P. Langmuir 22, 7855 (2006).
6 Park, J.H. Liu, C. C. Rathi, M.K. Mawst, L.J. Nealey, P.F. and Kuech, T.F. Journal of Nanophotonics 3, 1 (2009).
7 Jha, S. Liu, C. C. Kuan, T.S. Babcock, S.E. Nealey, P.F. Park, J.H. Mawst, L.J. and Kuech, T.F. Applied Physics Letters 95, 062104 (2009).
8 Drucker, J. Physical Review B48, 18203 (1993).
9 Alizadeh, A. Hays, D. Taylor, S.T. Keimel, C. Conway, K.R. Denault, L. Krishnan, K. Watkins, V.H. Neander, R. Brown, J.S. Stintz, A. Krishna, S. Blumin, M. Saveliev, I. Ruda, H.E. Braunstein, E. and Jones, C. Journal of Applied Physics 105, 054305 (2009).



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed