Properties of self-assembled ZnO nanoparticles in poly(styrene-acrylic acid) diblock copolymers — [PS]m/[PAA]n — on large area Si wafers

Agisilaos A. Iliadis; Hasina Afroz Ali; Unchul Lee

doi:10.1117/12.582681

25 March 2005 Properties of self-assembled ZnO nanoparticles in poly(styrene-acrylic acid) diblock copolymers - [PS]_m/[PAA]_n - on large area Si wafers

Agisilaos A. Iliadis, Hasina Afroz Ali, Unchul Lee

Author Affiliations +

Proceedings Volume 5732, Quantum Sensing and Nanophotonic Devices II; (2005) https://doi.org/10.1117/12.582681
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

The development of ZnO nanoparticles in poly(styrene-acrylic acid), [PS]_m/[PAA]_n, diblock copolymer on large area Si wafers is reviewed and the study of ZnO nanoparticle properties in PS-PAA copolymer system with different parameters, m/n of 159/63 and 106/17, is reported. These diblock copolymers are expected to exhibit spherical nanosized domains of the acrylic acid blocks due to microphase separation in solid phase but with domain size and density dependent on their respective molecular block lengths. Self-assembly of ZnO nanoparticles within these domains enabled control of nanoparticle size and density. The self-assembly process involved the doping of copolymer with ZnCl₂ precursor followed by delivery of nanocomposite films onto wafers by a spincasting process and subsequent conversion of ZnCl₂ to ZnO. The chemical analysis of these nanocomposite films and nanoparticles were performed using X-ray Photoelectron spectroscopy (XPS) which verified the conversion to ZnO. Imaging of the nanocomposite films with atomic force microscopy (AFM) showed that particles in [PS]₁₅₉/[PAA]₆₃ and [PS]₁₀₆/[PAA]₁₇ have a size distribution of 250-350 nm and 10-60 nm, respectively. Effect of precursor overdoping on size distribution of the nanoparticles is also discussed.

Citation Download Citation

Agisilaos A. Iliadis, Hasina Afroz Ali, and Unchul Lee "Properties of self-assembled ZnO nanoparticles in poly(styrene-acrylic acid) diblock copolymers - [PS]_m/[PAA]_n - on large area Si wafers", Proc. SPIE 5732, Quantum Sensing and Nanophotonic Devices II, (25 March 2005); https://doi.org/10.1117/12.582681

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available