Surface interpenetration between conducting polymer and PET substrate for mechanically reinforced ITO-free flexible organic solar cells

Lee, Ue Jin; Lee, Sang-Ho; Yoon, Jong Jin; Oh, Sun Joo; Lee, Suck Hyun; Lee, Jae Kwan

doi:10.1016/j.solmat.2012.09.004

Cited by 39 publications

(18 citation statements)

References 22 publications

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“…Due to the high surface polarity and wettability of the m‐cresol solvent, the prepared solution was well attached to the glass substrate. [6d], After the annealing process, as shown in the last picture of Figure , we obtained the large‐scale Re‐PARG film (23 cm × 23 cm, 13 inch). Additionally, we were able to fabricate the smaller sized film (16 cm × 13 cm, 8 inch) easily by changing the size of the glass substrate (Figure S1, Supporting Information), demonstrating the great advantage of the solution process for producing the scalable film.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Highly Flexible, Scalable, and High‐Performance Supercapacitors Using Polyaniline/Reduced Graphene Oxide Film with Enhanced Electrical Conductivity and Crystallinity

Kim

Lee

Jang

2013

Adv Funct Materials

397

260

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With developments in technology, tremendous effort has been devoted to produce flexible, scalable, and high‐performance supercapacitor electrode materials. This report presents a novel fabrication method of highly flexible and scalable electrode material for high‐performance supercapacitors using solution‐processed polyaniline (PANI)/reduced graphene oxide (RGO) hybrid film. SEM, TEM, Raman, and XPS analyses show that the PANI/RGO film is successfully synthesized. The percentages of the PANI component in the film are controlled (88, 76, and 60%), and the maximum electrical conductivity (906 S cm−1) is observed at the PANI percentage of 76%. Notably, electrical conductivity of the PANI/RGO film (906 S cm−1) is larger than both PANI (580 S cm−1) and RGO (46.5 S cm−1) components. XRD analysis demonstrates that the strong π–π interaction between the RGO and the PANI cause more compact packing of the PANI chains by inducing more fully expanded conformation of the PANI chains in the solution, leading to increase in the electrical conductivity and crystallinity of the film. The PANI/RGO film also displays diverse advantages as a scalable and flexible electrode material (e.g., controllable size and great flexibility). During the electrochemical tests, the film exhibits high capacitance of 431 F g−1 with enhanced cycling stability.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Highly Flexible, Scalable, and High‐Performance Supercapacitors Using Polyaniline/Reduced Graphene Oxide Film with Enhanced Electrical Conductivity and Crystallinity

Kim

Lee

Jang

2013

Adv Funct Materials

397

260

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“…PEN is a transparent aromatic polyester with a similar structure as PET. Polyester resins of PET and PEN are used in various applications, such as films, fibers, bottles, and hot filling containers, and also for high‐performance applications, such as substrates in flexible electronic devices . Nowadays, there is a great interest in flexible electronics devices.…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, there is a great interest in flexible electronics devices. Also, it was proved in a large amount of research that PET and PEN are the best choices for use in these applications because of their unique mechanical properties and good manufacturability .…”

Section: Introductionmentioning

confidence: 99%

Interrelationship of thermal and mechanical properties of poly(ethylene terephthalate)/poly(ethylene 2,6-naphthalate)/graphene nanocomposites

Ghadami

Ehsani

Khonakdar

2015

J Vinyl Addit Technol

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In the present work, attempts were made to investigate the thermal and mechanical properties of melt‐processed poly(ethylene terephthalate) (PET)/poly(ethylene 2,6‐naphthalate) (PEN) blends and its nanocomposites containing graphene by using differential scanning calorimetry and tensile test experimenting. The results showed that crystallinity, which depends on a blend ratio, completely disappeared in a composition of 50/50. By introducing graphene to PET, even in low concentrations, the crystallinity of samples increased, while the nanocomposite of PEN indicated reverse behavior, and the crystallinity was reduced by adding graphene. In the case of PET‐rich (75/25) nanocomposite blends, by increasing the nano content in the blend, the crystallinity of the samples was enhanced. This behavior was attributed to the nucleating effect of graphene particles in the samples. From the results of mechanical experiments, it was found in PET‐rich blends that by increasing the PEN/PET ratio, the modulus of samples decreased, whereas in the case of PEN‐rich blends, a slight increment of modulus is seen as a result of the increment of the PEN/PET ratio. The two contradicting behaviors were attributed to the reduction of crystallinity of PET‐rich blends by enhancement of PEN/PET ratio and the rigid structure of PEN chains in PEN‐rich blends. Unlike the different modulus change of PET‐rich and PEN‐rich blends, the nanocomposites of these blends similarly indicated an increment of modulus and characteristics of rigid materials by increasing the nano content. Furthermore, the same behavior was detected in nanocomposites of each polymer (PET and PEN nanocomposites). The alteration from ductile to rigid conduction was related to the impedance in the role of graphene plates against the flexibility of polymer chains and high values of graphene modulus. J. VINYL ADDIT. TECHNOL., 23:210–218, 2017. © 2015 Society of Plastics Engineers

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“…Typically, CPs can be employed as both a hole‐transporting layer and a transparent conductive electrode to replace the rigid indium tin oxide electrode for flexible PSCs because of their high capability of hole extraction and transport . Among them, PEDOT:poly(styrenesulphonate) (PSS) is the most investigated hole‐transporting and electrode material, which is already commercialized with a series of commonly used types such as 4083, PH500, and PH1000.…”

Section: Conjugated Polymer For Flexible Energy Harvestingmentioning

confidence: 99%

Conjugated Polymers for Flexible Energy Harvesting and Storage

et al. 2018

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Since the discovery of conjugated polymers in the 1970s, they have attracted considerable interest in light of their advantages of having a tunable bandgap, high electroactivity, high flexibility, and good processability compared to inorganic conducting materials. The above combined advantages make them promising for effective energy harvesting and storage, which have been widely studied in recent decades. Herein, the key advancements in the use of conjugated polymers for flexible energy harvesting and storage are reviewed. The synthesis, structure, and properties of conjugated polymers are first summarized. Then, their applications in flexible polymer solar cells, thermoelectric generators, supercapacitors, and lithium-ion batteries are described. The remaining challenges are then discussed to highlight the future direction in the development of conjugated polymers.

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Surface interpenetration between conducting polymer and PET substrate for mechanically reinforced ITO-free flexible organic solar cells

Cited by 39 publications

References 22 publications

Fabrication of Highly Flexible, Scalable, and High‐Performance Supercapacitors Using Polyaniline/Reduced Graphene Oxide Film with Enhanced Electrical Conductivity and Crystallinity

Fabrication of Highly Flexible, Scalable, and High‐Performance Supercapacitors Using Polyaniline/Reduced Graphene Oxide Film with Enhanced Electrical Conductivity and Crystallinity

Interrelationship of thermal and mechanical properties of poly(ethylene terephthalate)/poly(ethylene 2,6-naphthalate)/graphene nanocomposites

Conjugated Polymers for Flexible Energy Harvesting and Storage

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