Direct on chip cadmium sulfide thin film transistors synthesized via modified chemical surface deposition

Juan C. Ramos, Israel Mejia, Carlos A. Martinez, M. A. Quevedo-Lopez

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A simple and inexpensive solution-based method to grow functional and continuous nano-crystalline CdS thin films is demonstrated. The resulting CdS films are used to fabricate n-type thin film transistors (TFTs) with field effect mobility as high as ∼0.55 cm2 V-1 s -1, a threshold voltage (VT) of ∼8.4 V, and an on/off current ratio of 106. This method utilizes a solid-state reaction at low temperature that eliminates the need for nanoparticle synthesis to fabricate the semiconducting layer in the TFTs. The method also promotes efficient usage of the chemical precursors, which further reduces the cost of the process. This is a promising method that could be easily implemented in a manufacturable process such as roll-to-roll. © 2013 The Royal Society of Chemistry.
Original languageAmerican English
Pages (from-to)6653-6660
Number of pages8
JournalJournal of Materials Chemistry C
DOIs
StatePublished - 28 Oct 2013
Externally publishedYes

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