Fluorinated polyphenylenevinylene (PPV) block co-polymers for nanophotonics

Sam-Shajing Sun; Thuong Nguyen; Jaleesa Brooks

doi:10.1117/12.2023348

24 September 2013 Fluorinated polyphenylenevinylene (PPV) block co-polymers for nanophotonics

Sam-Shajing Sun, Thuong Nguyen, Jaleesa Brooks

Proceedings Volume 8876, Nanophotonics and Macrophotonics for Space Environments VII; 88760U (2013) https://doi.org/10.1117/12.2023348
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Polymer based optoelectronic materials and thin film devices exhibit great potential in future space applications due to their flexibility, light weight, large light absorption coefficient, and promising radiation tolerance in space environment as compared to their inorganic semiconductor counterparts. Since carbon-fluorine (C-F) chemical bonds are much stronger than the carbon-hydrogen (C-H) bonds, fluorinated polymer films offer great potential for space applications due their expected resistance to oxidation, thermal stability, excellent wear properties, and low coefficients of friction. Their use in a space environment is extremely attractive since they are expected to retain their lubricating characteristics in vacuum, unlike many solid lubricants. Current existing polymer photovoltaic materials and devices suffer low photoelectric power conversion efficiencies due to a number factors including poor morphologies at nano scale that hinder the charge separation and transport. This paper reports our recent work on a fluorinated DBfA type block copolymer system where the donor (D) block contains a donor substituted and hydrocarbon based polyphenylenevinylene (PPV), acceptor (fA) block contains a fluorinated and a sulfone acceptor substituted polyphenylenevinylene (f-PPV), and B is a non-conjugated and flexible bridge unit. Preliminary studies reveal DBfA exhibits better nano phase morphologies and over 100 times more efficient optoelectronic conversion efficiencies as compared to D/fA blend.

Citation Download Citation

Sam-Shajing Sun, Thuong Nguyen, and Jaleesa Brooks "Fluorinated polyphenylenevinylene (PPV) block co-polymers for nanophotonics", Proc. SPIE 8876, Nanophotonics and Macrophotonics for Space Environments VII, 88760U (24 September 2013); https://doi.org/10.1117/12.2023348

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KEYWORDS

Polymers

Absorption

Bridges

Optoelectronics

Polymer thin films

Solar cells

Electrodes

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