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

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

Small (Weinheim an der Bergstrasse, Germany) (2014-07-26)

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

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.

MATERIALS

Product Number

Brand

Product Description

Supelco

2-Methoxyethanol, analytical standard

Supelco

Ethanolamine, analytical standard

Sigma-Aldrich

2-Methoxyethanol, anhydrous, 99.8%

Supelco

Aucubin, analytical standard

Sigma-Aldrich

Ethanolamine, ≥98%

Sigma-Aldrich

Ethanolamine, liquid, BioReagent, suitable for cell culture, ≥98%

Sigma-Aldrich

2-Methoxyethanol, ReagentPlus^®, ≥99.0%, contains 50 ppm BHT as stabilizer

Aucubin, primary reference standard

Supelco

2-Methoxyethanol, Pharmaceutical Secondary Standard; Certified Reference Material

Sigma-Aldrich

Ethanolamine, ≥99%

Sigma-Aldrich

Ethanolamine, purified by redistillation, ≥99.5%

Sigma-Aldrich

Ethanolamine, ACS reagent, ≥99.0%

Sigma-Aldrich

Ethanolamine, puriss. p.a., ACS reagent, ≥99.0% (GC/NT)

Sigma-Aldrich

2-Methoxyethanol, suitable for HPLC, ≥99.9%

Sigma-Aldrich

2-Methoxyethanol, contains 50 ppm BHT as stabilizer, ACS reagent, ≥99.3%

Sigma-Aldrich

Hexamethylenetetramine, meets analytical specification of Ph. Eur., BP, 99-100.5% (calc. to the dried substance)

Sigma-Aldrich

Hexamethylenetetramine, puriss. p.a., reag. Ph. Eur., ≥99.5% (calc. to the dried substance)

Sigma-Aldrich

Hexamethylenetetramine, ReagentPlus^®, 99%

Sigma-Aldrich

Hexamethylenetetramine, ACS reagent, ≥99.0%

Trolamine impurity A, European Pharmacopoeia (EP) Reference Standard