Chemical self-doping of one-dimensional organic nanomaterials for high conductivity application in chemiresistive sensing gas or vapor

A resistive sensor, chemical technology, applied in the fields of organic chemistry, organic dyes, analytical materials, etc., can solve problems such as the increase in the incidence of acute respiratory diseases

Inactive Publication Date: 2018-07-17
UNIV OF UTAH RES FOUND
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Continuous or frequent exposure to NO above air quality standa...

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  • Chemical self-doping of one-dimensional organic nanomaterials for high conductivity application in chemiresistive sensing gas or vapor
  • Chemical self-doping of one-dimensional organic nanomaterials for high conductivity application in chemiresistive sensing gas or vapor
  • Chemical self-doping of one-dimensional organic nanomaterials for high conductivity application in chemiresistive sensing gas or vapor

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[0099] The chemical self-doping of one-dimensional organic nanomaterials has high conductivity in the chemical resistance sensing target gas or vapor application

[0100] The PTCDI molecule is replaced with 1-methylpiperidine (MP) to construct a self-doped semiconductor into a nanoribbon structure through one-dimensional (1D) self-assembly of the molecule. The methylpiperidine moiety on one molecule acting as a strong electron donor (D) interacts with the PTCDI core on the adjacent molecule (acting as electron acceptor A) to generate an anionic radical of PTCDI. The resulting radicals are used as n-type dopants located in the crystal lattice of the PTCDI semiconductor. Similar self-doping induced by side groups can also be used in other conductive polymer materials such as polyaniline. The nanoribbon structure is dominated by the π-π stacking between PTCDI planes, which provides an effective way for long-distance charge transfer. Therefore, self-doped electrons migrate along ...

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Abstract

A chemiresistive vapor sensor compound for detecting target vapors can comprise a perylene-tetracarboxylic diimide (PTCDI) core according to structure (I), where R can be a morphology control group or-A'-D', A and A' can be independently a linking group, D and D' can be independently a strong electron donor which transfers electrons to the PTCDI core sufficient to form an anionic PTCDI radical ofthe PTCDI core, and Rl to R8 can be independently a side group. A chemiresi stive vapor sensor (100) for detection of a target compound can comprise an assembly of nanofibers (105) formed of the chemiresi stive sensor compound and a pair of electrodes (150A, 150B) operatively oriented about the assembly of nanofibers (105) to allow electrical current to pass from a first electrode in the pair ofelectrodes (150A, 150B) through the assembly of nanofibers (105) and to a second electrode in the pair of electrodes.

Description

[0001] Related patent applications [0002] This application claims the rights of U.S. Provisional Application 62 / 373,750 filed on August 11, 2016 and U.S. Provisional Application 62 / 386,489 filed on December 2, 2015, each of which is incorporated herein by reference. [0003] Government interest [0004] The present invention was completed with government support of 2009-ST-108-LR0005 granted by the US Department of Homeland Security and grant CHE0931466 and grant CBET1502433 granted by the National Science Foundation. The government has certain rights in this invention. Technical field [0005] The present invention relates to the field of vapor or gas detection using compounds based on perylene-tetracarboxylic diimide. Therefore, the present invention relates to the fields of organic chemistry, chemical engineering and nanotechnology. Background technique [0006] Peroxide explosives including TATP, DADP, and HMTD represent one of the most elusive explosives, which can be easily ...

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Application Information

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IPC IPC(8): C07D471/06C09B69/10C09B5/62
CPCG01N27/127C09B5/62G01N33/0037C07D471/06G01N33/0057Y02A50/20G01N27/04
Inventor L·臧N·吴P·斯拉图姆
Owner UNIV OF UTAH RES FOUND
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