Work function tuning for flexible transparent electrodes based on functionalized metallic single walled carbon nanotubes

Spadafora, Evan J.; Saint-Aubin, Karell; Celle, Caroline; Demadrille, Renaud; Grévin, Benjamin; Simonato, Jean‐Pierre

doi:10.1016/j.carbon.2012.03.010

Cited by 37 publications

(36 citation statements)

References 35 publications

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“…[34] In Figure 2(a), it is observed that nine major semiconducting species exist in the SDS suspended SWNTs. They are (6, 5), (7,5), (7,6), (8,4), (8,6), (8,7), (9, 4), (9, 5) and (10, 2) which are marked with orange borders in Figure 2(c). While nine species can also be observed in Figure 2(b) which are semiconducting enriched fractions after AGE/w-PFO.…”

Section: Resultsmentioning

confidence: 97%

“…[35] Therefore, each calibrated species abundance is obtained through dividing the experimental PL intensity (peak height above the baseline) by a theoretical intensity factor. [36] From the calculated abundance of relative species in Table1, we can find that AGE/w-PFO mainly selects for (7,6), (8,4), (8,6), (8,7), (9,4), (9,5), and (10,3).…”

Section: Resultsmentioning

confidence: 98%

“…The absorbance peaks in the 870-1600 nm, 500-870 nm and 440-670 nm range correspond to the first and second van Hove electronic transitions of semiconducting species ( 11 S E and S 22 E ) and first van Hove electronic transitions of metallic species ( M 11 E ), respectively. Metallic species such as (7, 7), (8,5), (9,9), (10, 7), (11,5), and (13,4) are detected and shown in the pristine HiP-CO SWNTs spectrum. For the semiconducting fraction extracted from the upper fraction after AGE/w-PFO, the peaks in the region of M 11 E decrease obviously which suggests the reduction of metallic species in semiconducting fraction.…”

Section: Resultsmentioning

confidence: 99%

“…While nine species can also be observed in Figure 2(b) which are semiconducting enriched fractions after AGE/w-PFO. They are (7,5), (7,6), (8,4), (8,6), (8,7), (9, 4), (9, 5), (10,2), and (10, 3) which are marked with green dots of different darkness in Figure 2(c), according to calibrated PL peak intensity. In the graphene sheet map, Figure 2(c), the suspension preferences of pristine SWNTs and semiconducting enriched SWNTs by AGE/w-PFO are summarized.…”

Section: Resultsmentioning

confidence: 99%

“…In the spectrum of pristine nanotubes, the RBM peaks of (7, 7), (8,5), and (9, 3) can be assigned to metallic nanotubes range from 230 to 270 cm −1 . A visible reduction of the RBM peaks of semiconducting spectrum can be detected which suggests the metallic content of semiconducting fraction declines.…”

Section: Wavelength/nmmentioning

confidence: 99%

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Sorting Semiconducting Single‐Walled Carbon Nanotubes by Water‐Soluble Polyfluorene Assisted Electrophoresis and Its Application in Field‐effect Transistors

Zhu

Wang

2015

Chin. J. Chem.

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We report a considerably promising method based on agarose gel electrophoresis (AGE) to separate singlewalled carbon nanotubes by adding a water-soluble polyfluorene (w-PFO) as surfactant into the agarose gel. In this effective method, the AGE/w-PFO gel network will trap more semiconducting single-walled carbon nanotubes (SWNTs) with the assistance of w-PFO, for the strong interaction between w-PFO and semiconducting species. The optical absorbance, photoluminescence emission and resonant Raman scattering characterization were used to verify the separation effect. The purity of separated semiconducting species is as high as (98±1)%. The demonstrated field effect transistors give the on/off ratio and mobility about 27000 and 10.2 cm 2 •V −1•s −1 , respectively.Keywords agarose gel electrophoresis, field effect transistors, semiconducting single-walled carbon nanotubes, water-soluble polyfluorene IntroductionSingle-walled carbon nanotubes (SWNTs) have attracted widespread attention in recent years due to the unique structure.[1] Their extraordinary mechanical, chemical and electronic properties make them potentially suitable for a wide range of applications such as the field effect transistors (FETs), chemical sensors, logic circuits and transparent electrodes and emitter of electrospray ionization mass spectrometry. [2][3][4][5][6] Particularly, the high charge-carrier mobility of semiconducting SWNTs has a promising prospect for FETs. [7] However, SWNTs are generally produced as a mixture of semiconducting SWNTs (s-SWNTs) and metallic SWNTs (m-SWNTs) which is a barrier for the application in electronic fields. Although some research has been done to directly synthesize chiral selective nanotubes, the purity and yield of s-SWNTs are not satisfied. [8,9] In order to gain pure and scalable s-SWNTs, separation of raw carbon nanotube materials is still an optimal choice until now.In the last decade, various techniques have been developed to separate semiconducting SWNTs, such as polymer wrapping, density gradient ultracentrifugation (DGU), sephacryl gel-based chromatography, agarose gel, two-phase separation, etc. [10][11][12][13][14][15][16][17][18][19][20][21] Each of these techniques is able to separate SWNTs into metallic and semiconducting species in different level of success. In spite of their promises, each method has its own limited capability to scale up or requires a complex process of removing the surfactants or polymers. For example, Tanaka et al. [22] showed that agarose gel electrophoresis (AGE) can be used to separate metallic from semiconducting nanotubes effectively using sodium dodecyl sulfate (SDS) as the dispersant. The article reported that under the effect of electrophoresis, SWNTs wrapped with SDS have different level of interaction with gel, in which m-SWNTs migrated toward the anode faster than s-SWNTs. SWNTs thereby can be separated into two parts, metallic fraction and semiconducting fraction. Mesgari et al. [23] have made an improvement of AGE method to increase the purity and yield of s-S...

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Wavelength/nmmentioning

confidence: 99%

See 3 more Smart Citations

Sorting Semiconducting Single‐Walled Carbon Nanotubes by Water‐Soluble Polyfluorene Assisted Electrophoresis and Its Application in Field‐effect Transistors

Zhu

Wang

2015

Chin. J. Chem.

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Metallic Nanowires, Promising Building Nanoblocks for Flexible Transparent Electrodes

Simonato¹

2023

Flexible Flat Panel Displays

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Transparent Heaters: A Review

Papanastasiou

Schultheiss

Muñoz‐Rojas

et al. 2020

Adv Funct Materials

Self Cite

196

191

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Transparent heaters (TH) have attracted intense attention from both scientific and industrial sectors due to the key role they play in many technologies, including smart windows, deicers, defoggers, displays, actuators, and sensors. While transparent conductive oxides have dominated the field for the past five decades, a new generation of THs based on nanomaterials has led to new paradigms in terms of applications and prospects in the past years. Here, the most recent developments and strategies to improve the properties, stability, and integration of these new THs are reviewed.

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Work function tuning for flexible transparent electrodes based on functionalized metallic single walled carbon nanotubes

Cited by 37 publications

References 35 publications

Sorting Semiconducting Single‐Walled Carbon Nanotubes by Water‐Soluble Polyfluorene Assisted Electrophoresis and Its Application in Field‐effect Transistors

Sorting Semiconducting Single‐Walled Carbon Nanotubes by Water‐Soluble Polyfluorene Assisted Electrophoresis and Its Application in Field‐effect Transistors

Metallic Nanowires, Promising Building Nanoblocks for Flexible Transparent Electrodes

Transparent Heaters: A Review

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