  Dual-gate electrostatic modulation gives an attractive approach for
transistors performance improvement, threshold voltage (Vth) and operation mode
modulation, which is favorable for chemical sensor and logic applications.
Here, a self-aligned junctionless semiconducting oxide channels are dual-gate
electrostatic modulated by solution-processed chitosan-based proton conductors
on paper substrates. The low-voltage junctionless paper transistors can be
effectively tuned from depletion mode to enhancement mode by the second
in-plane gate. OR logic gate was experimentally demonstrated on such
dual-in-plane gate junctionless transistors. Such dual-gate organic/inorganic
hybrid paper transistors are promising for portable paper electronics.

Materials Science