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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

Aucubin, analytical standard

Sigma-Aldrich

Ethanolamine, ACS reagent, ≥99.0%

Supelco

2-Methoxyethanol, analytical standard

Sigma-Aldrich

2-Methoxyethanol, anhydrous, 99.8%

Supelco

Ethanolamine, analytical standard

Sigma-Aldrich

2-Methoxyethanol, SAJ first grade, ≥99.0%

Sigma-Aldrich

Ethanolamine, JIS special grade, ≥99.0%

Sigma-Aldrich

Ethanolamine, SAJ first grade, ≥99.0%

Sigma-Aldrich

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

Sigma-Aldrich

Ethanolamine, purified by redistillation, ≥99.5%

Sigma-Aldrich

2-Methoxyethanol, JIS special grade, ≥99.0%

Sigma-Aldrich

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

Sigma-Aldrich

Ethanolamine, ≥98%

Sigma-Aldrich

Ethanolamine, ≥99%

Aucubin, primary reference standard

Sigma-Aldrich

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

Sigma-Aldrich

2-Methoxyethanol, suitable for HPLC, ≥99.9%

Sigma-Aldrich

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

Supelco

2-Methoxyethanol, Pharmaceutical Secondary Standard; Certified Reference Material

Sigma-Aldrich

Hexamethylenetetramine, SAJ first grade, ≥98.5%

Sigma-Aldrich

Hexamethylenetetramine, JIS special grade, ≥99.0%

Sigma-Aldrich

Hexamethylenetetramine, ReagentPlus^®, 99%

Sigma-Aldrich

Hexamethylenetetramine, ACS reagent, ≥99.0%

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)

Trolamine impurity A, European Pharmacopoeia (EP) Reference Standard