Transparent Electronics Based on Transfer Printed Aligned Carbon Nanotubes on Rigid and Flexible Substrates

Ishikawa, Fumiaki; Chang, Hsiao-Kang; Ryu, Koungmin; Chen, Po‐Chiang; Badmaev, Alexander; Arco, Lewis Gomez De; Shen, Guozhen; Zhou, Chongwu

doi:10.1021/nn800434d

Cited by 267 publications

(265 citation statements)

References 31 publications

Supporting

Mentioning

258

Contrasting

Unclassified

Order By: Relevance

“…[1][2][3] This approach is exciting as it will enable devices with unusual characteristics such as mechanically flexibility, stretchability and even transparency. [3][4][5] It is likely that these possibilities will lead to numerous applications that are impossible using traditional manufacturing techniques.…”

Section: Introductionmentioning

confidence: 99%

Avoiding Resistance Limitations in High-Performance Transparent Supercapacitor Electrodes Based on Large-Area, High-Conductivity PEDOT:PSS Films

Higgins

Coleman

2015

ACS Appl. Mater. Interfaces

145

135

View full text Add to dashboard Cite

This work describes the potential of thin, spray-deposited, large-area poly(3,4-ethylenedioxythiophene)/poly(styrene-4-sulfonate) (PEDOT:PSS) conducting polymer films for use as transparent supercapacitor electrodes. To facilitate this, we provide a detailed explanation of the factors limiting the performance of such electrodes. These films have a very low optical conductivity of σop = 24 S/cm (at 550 nm), crucial for this application, and a reasonable volumetric capacitance of C V = 41 F/cm3. Secondary doping with formic acid gives these films a DC conductivity of σDC = 936 S/cm, allowing them to perform both as a transparent conductor/current collector and transparent supercapacitor electrode. Small-area films (A ∼ 1 cm2) display measured areal capacitance as high as 1 mF/cm2, even for reasonably transparent electrodes (T ∼ 80%). However, in real devices, the absolute capacitance will be maximized by increasing the device area. As such, here, we measure the electrode performance as a function of its length and width. We find that the measured areal capacitance falls dramatically with scan rate and sample length but is independent of width. We show that this is because the measured areal capacitance is limited by the electrical resistance of the electrode. We have derived an equation for the measured areal capacitance as a function of scan rate and electrode lateral dimensions that fits the data extremely well up to scan rates of ∼1000 mV/s (corresponding to charge/discharge times > 0.6 s). These results are self-consistent with independent analysis of the electrical and impedance properties of the electrodes. These results can be used to find limiting combinations of electrode length and scan rate, beyond which electrode performance falls dramatically. We use these insights to build large-area (∼100 cm2) supercapacitors using electrodes that are 95% transparent, providing a capacitance of ∼12 mF (at 50 mV/s), significantly higher than that of any previously reported transparent supercapacitor.

show abstract

Section: Introductionmentioning

confidence: 99%

Avoiding Resistance Limitations in High-Performance Transparent Supercapacitor Electrodes Based on Large-Area, High-Conductivity PEDOT:PSS Films

Higgins

Coleman

2015

ACS Appl. Mater. Interfaces

145

135

View full text Add to dashboard Cite

show abstract

“…In particular, selective and addressable deposition of SWCNTs is important for high-performance CNT based-electronic devices such as light-emitting diode, flexible display, conductive film, and transistor [5][6][7][8][9][10]. Therefore, extensive efforts have been made towards integration of individual SWCNTs into microscale devices with particular emphasis on efficiency and scalability.…”

Section: Introductionmentioning

confidence: 99%

Large-area fluidic assembly of single-walled carbon nanotubes through dip-coating and directional evaporation

Kim

Kang

2017

Micro and Nano Syst Lett

View full text Add to dashboard Cite

We present a simple and scalable fluidic-assembly approach, in which bundles of single-walled carbon nanotubes (SWCNTs) are selectively aligned and deposited by directionally controlled dip-coating and solvent evaporation processes. The patterned surface with alternating regions of hydrophobic polydimethyl siloxane (PDMS) (height ~ 100 nm) strips and hydrophilic SiO 2 substrate was withdrawn vertically at a constant speed (~3 mm/min) from a solution bath containing SWCNTs (~0.1 mg/ml), allowing for directional evaporation and subsequent selective deposition of nanotube bundles along the edges of horizontally aligned PDMS strips. In addition, the fluidic assembly was applied to fabricate a field effect transistor (FET) with highly oriented SWCNTs, which demonstrate significantly higher current density as well as high turn-off ratio (T/O ratio ~ 100) as compared to that with randomly distributed carbon nanotube bundles (T/O ratio ~ <10).

show abstract

“…Carbon nanotubes (CNTs) have been considered one of the most promising candidates for flexible and transparent carbon‐based electronic devices due to their outstanding mechanical flexibility, stretchability, and electrical conductivity 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. A reliable fabrication and patterning technology for mass production is the key to taking full advantage of them in practical applications.…”

mentioning

confidence: 99%

High‐Throughput Fabrication of Flexible and Transparent All‐Carbon Nanotube Electronics

et al. 2018

View full text Add to dashboard Cite

This study reports a simple and effective technique for the high‐throughput fabrication of flexible all‐carbon nanotube (CNT) electronics using a photosensitive dry film instead of traditional liquid photoresists. A 10 in. sized photosensitive dry film is laminated onto a flexible substrate by a roll‐to‐roll technology, and a 5 µm pattern resolution of the resulting CNT films is achieved for the construction of flexible and transparent all‐CNT thin‐film transistors (TFTs) and integrated circuits. The fabricated TFTs exhibit a desirable electrical performance including an on–off current ratio of more than 105, a carrier mobility of 33 cm2 V−1 s−1, and a small hysteresis. The standard deviations of on‐current and mobility are, respectively, 5% and 2% of the average value, demonstrating the excellent reproducibility and uniformity of the devices, which allows constructing a large noise margin inverter circuit with a voltage gain of 30. This study indicates that a photosensitive dry film is very promising for the low‐cost, fast, reliable, and scalable fabrication of flexible and transparent CNT‐based integrated circuits, and opens up opportunities for future high‐throughput CNT‐based printed electronics.

show abstract

Transparent Electronics Based on Transfer Printed Aligned Carbon Nanotubes on Rigid and Flexible Substrates

Cited by 267 publications

References 31 publications

Avoiding Resistance Limitations in High-Performance Transparent Supercapacitor Electrodes Based on Large-Area, High-Conductivity PEDOT:PSS Films

Avoiding Resistance Limitations in High-Performance Transparent Supercapacitor Electrodes Based on Large-Area, High-Conductivity PEDOT:PSS Films

Large-area fluidic assembly of single-walled carbon nanotubes through dip-coating and directional evaporation

High‐Throughput Fabrication of Flexible and Transparent All‐Carbon Nanotube Electronics

Contact Info

Product

Resources

About