Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Flexible complementary logic circuit built from two identical organic
  electrochemical transistors   The organic electrochemical transistor (OECT) with a conjugated polymer as
the active material is the elementary unit of organic bioelectronic devices.
Increased functionalities, such as low power consumption, can be achieved by
building complementary circuits featuring two or more OECTs. Complementary
circuits commonly combine both p- and n-type transistors to reduce power draw.
While p-type OECTs are readily available, n-type OECTs are less common mainly
due to poor stability of the n-type active channel material in aqueous
electrolyte. Additionally, an OECT based complementary circuit requires well
matched transport properties in the p- and n-type materials. Here, a
complementary circuit is made using a pair of OECTs having polyaniline (PANI)
as the channel material in both transistors. PANI is chosen due to its unique
behaviour exhibiting a peak in current versus gate voltage when used as an
active channel in an OECT. The PANI based circuit is shown to have excellent
performance with gain of ~ 7 and could be transferred on a flexible
biocompatible chitosan substrate with demonstrated operation in aqueous
electrolyte. This study extends the capabilities of conjugated polymer based
OECTs.

24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math