On-Site Synthesis of Halide Perovskite Nanocrystals with Sub-50 nm Positional Accuracy
Name
JastrzebskaPerfect-pjp-SM-EECS-2022-thesis.pdf
Description
Thesis PDF
Size
8.36 MB
Format
Adobe PDF
Checksum (MD5)
8aecb1e614854ee86fea3693f5af0d4a
Author(s)
Jastrzebska-Perfect, Patricia
Advisor(s)
Niroui, Farnaz
Date Issued
May 2022
Publisher
Massachusetts Institute of Technology
Abstract
Metal halide perovskites comprise a promising class of semiconductors with broad applications ranging from optoelectronics and photovoltaics to photocatalysis. To extend these applications to on-chip devices, on-site growth of perovskite nanocrystals with high positional accuracy must be achieved. In this thesis, we demonstrate a method for growing sub-50 nm halide perovskite nanocrystals with sub-50 nm positional accuracy. We first explore how local forces can be engineered to control particle positioning at the nanoscale. We then show how our parameters of control - namely template geometry and solvent contact angle - can be utilized to position nanocrystals within lithographic templates. This thesis reveals a unique strategy that overcomes the limitations of conventional lithographic processes for high-resolution growth of halide perovskites.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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