title: Long-term sustainable aluminum precursor solution for highly conductive thin films on rigid and flexible substrates.
abstract: To fabricate the highly conductive Al film via a solution process, AlH3 etherates have been a unique Al source despite their chemical instability in solvents and thus lack of long-term sustainability. Herein, we suggest an innovative solution process to overcome the aforementioned drawbacks in AlH3 etherates; AlH3 aminates powder, which can be stored in low temperature surroundings and redissolved in solvents whenever it is needed. Since refrigeration of AlH3 aminates, AlH3{N(CH3)3}, was very effective to prevent its chemical degradation, Al film with excellence and uniformity in electrical and mechanical properties was successfully fabricated even by the 180-day stored AlH3{N(CH3)3} dissolved in solvents. Moreover, the applicability of long-term stored AlH3{N(CH3)3} to electronic devices was experimentally demonstrated by the successful operation of LED lamps connected to the Al pattern films on glass, PET, and paper substrates.
authors.affiliation: Powder & Ceramics Division and ‡Advanced Characterization and Analysis Group, Korea Institute of Materials Science (KIMS) , Changwon 642-831, Korea.
authors.forename: Hye Moon
authors.initials: HM
authors.lastname: Lee
authors.forename: Jung Yoon
authors.initials: JY
authors.lastname: Seo
authors.forename: Areum
authors.initials: A
authors.lastname: Jung
authors.forename: Si-Young
authors.initials: SY
authors.lastname: Choi
authors.forename: Seung Hwan
authors.initials: SH
authors.lastname: Ko
authors.forename: Jeongdai
authors.initials: J
authors.lastname: Jo
authors.forename: Seung Bin
authors.initials: SB
authors.lastname: Park
authors.forename: Duckshin
authors.initials: D
authors.lastname: Park
keywords: aluminum; conductive film; electrodes; precursor; solution process