Small 2014-11-12

Scalable high-fidelity growth of semiconductor nanorod arrays with controlled geometry for photovoltaic devices using block copolymers.

Candice I Pelligra, Su Huang, Jonathan P Singer, Anthony T Mayo, Richard R Mu, Chinedum O Osuji

Index: Small 10(21) , 4304-9, (2014)

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Abstract

Controlled density semiconducting oxide arrays are highly desirable for matching nanometer length scales specific to emerging applications. This work demonstrates a facile one-step method for templating hydrothermal growth which provides arrays with high-fidelity tuning of nanorod spacing and diameter. This solution-based method leverages the selective swelling of block copolymer micelle templates, which can be rationally designed by tuning molecular weight and volume fraction. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.