Carbohydrate-Assisted Combustion Synthesis to Realize High-Performance Oxide Transistors

Binghao Wang, Li Zeng, Wei Huang, Ferdinand S. Melkonyan, William C. Sheets, Lifeng Chi, Michael J. Bedzyk*, Tobin J. Marks, Antonio Facchetti

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


Owing to high carrier mobilities, good environmental/thermal stability, excellent optical transparency, and compatibility with solution processing, thin-film transistors (TFTs) based on amorphous metal oxide semiconductors (AOSs) are promising alternatives to those based on amorphous silicon (a-Si:H) and low-temperature (<600 °C) poly-silicon (LTPS). However, solution-processed display-relevant indium-gallium-tin-oxide (IGZO) TFTs suffer from low carrier mobilities and/or inferior bias-stress stability versus their sputtered counterparts. Here we report that three types of environmentally benign carbohydrates (sorbitol, sucrose, and glucose) serve as especially efficient fuels for IGZO film combustion synthesis to yield high-performance TFTs. The results indicate that these carbohydrates assist the combustion process by lowering the ignition threshold temperature and, for optimal stoichiometries, enhancing the reaction enthalpy. IGZO TFT mobilities are increased to >8 cm2 V-1 s-1 on SiO2/Si gate dielectrics with significantly improved bias-stress stability. The first correlations between precursor combustion enthalpy and a-MO densification/charge transport are established.

Original languageEnglish (US)
Pages (from-to)7067-7074
Number of pages8
JournalJournal of the American Chemical Society
Issue number22
StatePublished - Jun 8 2016

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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