Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low-power/high-gain flexible complementary circuits based on printed
  organic electrochemical transistors   The ability to accurately extract low-amplitude voltage signals is crucial in
several fields, ranging from single-use diagnostics and medical technology to
robotics and the Internet of Things. The organic electrochemical transistor,
which features large transconductance values at low operation voltages, is
ideal for monitoring small signals. Its large transconductance translates small
gate voltage variations into significant changes in the drain current. However,
a current-to-voltage conversion is further needed to allow proper data
acquisition and signal processing. Low power consumption, high amplification,
and manufacturability on flexible and low-cost carriers are also crucial and
highly anticipated for targeted applications. Here, we report low-power and
high-gain flexible circuits based on printed complementary organic
electrochemical transistors (OECTs). We leverage the low threshold voltage of
both p-type and n-type enhancement-mode OECTs to develop complementary voltage
amplifiers that can sense voltages as low as 100 $\mu$V, with gains of 30.4 dB
and at a power consumption < 2.7 $\mu$W (single-stage amplifier). At the
optimal operating conditions, the voltage gain normalized to power consumption
reaches 169 dB/$\mu$W, which is > 50 times larger than state-of-the-art
OECT-based amplifiers. In a two-stage configuration, the complementary voltage
amplifiers reach a DC voltage gain of 193 V/V, which is the highest among
emerging CMOS-like technologies operating at supply voltages below 1 volt. Our
findings demonstrate that flexible complementary circuits based on printed
OECTs define a power-efficient platform for sensing and amplifying
low-amplitude voltage signals in several emerging beyond-silicon applications.

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The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
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The categories of this paper are: quant-ph
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The categories of this paper are: eess
5
The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th