Organic base modulation triodes and their inverters on flexible substrates

Shiau Shin Cheng, You Che Chuang, Dhananjay Kekuda, Chun Wei Ou, Meng Chyi Wu, Chi Wei Chu

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


A vertical-type transistor, organic base modulation triode (OBMT), which is fabricated employing two back-to-back diodes on a flexible plastic substrate, was investigated. The substrates were precleaned using detergent, acetone, isopropyl alcohol, and treated with an UV-ozone cleaner for 15 min. A Au layer 30nm thick was deposited on the glass or PET substrate as the collector electrode. A thin Al layer was deposited as the base layer, and a LiF layer of 0.4nm was thermally evaporated as the carrier-injection enhancement layer. Subsequently, a 20 nm thick NPB layer was thermally evaporated to enhance the carrier energy, and a pentacene layer 140 nm thick was thermally evaporated. All organic materials and metal electrodes were deposited in a thermal-evaporation chamber at a base pressure of 10-6 Torr. The OBMT shows a high output current with an apparent saturation region at low voltages.

Original languageEnglish
Pages (from-to)1860-1864
Number of pages5
JournalAdvanced Materials
Issue number18
Publication statusPublished - 11-05-2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Organic base modulation triodes and their inverters on flexible substrates'. Together they form a unique fingerprint.

Cite this