Magnetic-field effects in ambipolar transistors based on a bipolar molecular glass

Abstract

Magnetoresistance effects in ambipolar transistors based on a single amorphous organic thin-film.

Charge Puddles Driven Complex Crossover of Magnetoresistance in Non‐Topological Sulfur Doped Antimony Selenide Nanowires

“…[ 63 ] R versus T measurements in intermediate temperature regime (20–150 K) signifies Tomonaga Luttinger liquid type of behavior with power law dependence with α = 1.8, that is, less than that of the ideal value of α = 4 [ 64 ] observed for pure LL behavior. This signifies that the assembly of nanowires behaves as LL drops connected by weak links, as reported in InSb nanowires and carbon nanotube assemblies, [ 41,64 ] and this reflects in our MR measurements as ambipolar behavior, [ 54 ] with low‐field NMR making a cross‐over to PMR at higher fields similar to our nanotubes, [ 31 ] as reported in our earlier work.…”

“…From 10 to 100 K, this region is identified as the ambipolar regime. [54] The combined approach of the WFS+BP theories explains well the range of MR from 10 to 100 K, necessary fittings are shown in Figure 4b, mathematically WFS+BP is expressed as…”

“…From 10 to 100 K, this region is identified as the ambipolar regime. [ 54 ] The combined approach of the WFS+BP theories explains well the range of MR from 10 to 100 K, necessary fittings are shown in Figure 4b, mathematically WFS+BP is expressed as $$$$\begin{equation}{\mathrm{MR}}\, = {{\mathrm{t}}}_2\ \frac{{{{\mathrm{a}}}^2{{\mathrm{e}}}^2}}{{36{{\mathrm{h}}}^2}}\,{\left( {\frac{{{{\mathrm{T}}}_0}}{{\mathrm{T}}}} \right)}^{{\mathrm{3/4}}}\,{{\mathrm{H}}}^{2\ } + {{\mathrm{Y}}}_0\frac{{{{\mathrm{B}}}^2}}{{{{\mathrm{B}}}^2 + {{\mathrm{B}}}_0^2}}\end{equation}$$$$…”

Design and preparation of glassy molecular precursors by adjusting molecular structures for facile processing of high-performance polymers

“…Besides, due to the lack of efficient packing, molecular glasses show outstanding processability. 39,40 In view of these excellences, molecular glasses have been broadly applied in pharmaceuticals, 41,42 optoelectronics, 43,44 nanolithography, 45,46 etc. However, the research about amorphous precursors for polymers is still rare, 47 and little is known about how the precursors' structures determine the formation of amorphousness and how they affect the stabilities.…”