Large‐area flexible transparent conductive films (TCFs) are highly desired for future electronic devices. Nanocarbon TCFs are one of the most promising candidates, but some of their properties are ...mutually restricted. Here, a novel carbon nanotube network reorganization (CNNR) strategy, that is, the facet‐driven CNNR (FD‐CNNR) technique, is presented to overcome this intractable contradiction. The FD‐CNNR technique introduces an interaction between single‐walled carbon nanotube (SWNT) and Cu─‐O. Based on the unique FD‐CNNR mechanism, large‐area flexible reorganized carbon nanofilms (RNC‐TCFs) are designed and fabricated with A3‐size and even meter‐length, including reorganized SWNT (RSWNT) films and graphene and RSWNT (G‐RSWNT) hybrid films. Synergistic improvement in strength, transmittance, and conductivity of flexible RNC‐TCFs is achieved. The G‐RSWNT TCF shows sheet resistance as low as 69 Ω sq−1 at 86% transmittance, FOM value of 35, and Young's modulus of ≈45 MPa. The high strength enables RNC‐TCFs to be freestanding on water and easily transferred to any target substrate without contamination. A4‐size flexible smart window is fabricated, which manifests controllable dimming and fog removal. The FD‐CNNR technique can be extended to large‐area or even large‐scale fabrication of TCFs and can provide new insights into the design of TCFs and other functional films.
A novel facet‐driven carbon nanotube network reorganization method is developed to prepare large‐area flexible freestanding transparent and conductive carbon nanofilms with synergistic enhancement of multiple properties, such as mechanical strength, transmittance and conductivity, and the area up to A3 size and even meter‐length. Based on the film, a new smart window is fabricated.
Highly stretchable, integrated, single‐walled carbon nanotube (SWCNT) film supercapacitors are prepared by combining directly grown SWCNT films with continuous reticulate architecture with ...polydimethylsiloxane with enhanced prestrain. The performance of the prepared stretchable supercapacitors remains nearly unchanged even during the stretching process under 120% strain.
High‐purity semiconducting single‐walled carbon nanotubes (s‐SWCNTs) are of paramount significance for the construction of next‐generation electronics. Until now, a number of elaborate sorting and ...purification techniques for s‐SWCNTs have been developed, among which solution‐based sorting methods show unique merits in the scale production, high purity, and large‐area film formation. Here, the recent progress in the solution processing of s‐SWCNTs and their application in electronic devices is systematically reviewed. First, the solution‐based sorting and purification of s‐SWCNTs are described, and particular attention is paid to the recent advance in the conjugated polymer‐based sorting strategy. Subsequently, the solution‐based deposition and morphology control of a s‐SWCNT thin film on a surface are introduced, which focus on the strategies for network formation and alignment of SWCNTs. Then, the recent advances in electronic devices based on s‐SWCNTs are reviewed with emphasis on nanoscale s‐SWCNTs' high‐performance integrated circuits and s‐SWCNT‐based thin‐film transistors (TFT) array and circuits. Lastly, the existing challenges and development trends for the s‐SWCNTs and electronic devices are briefly discussed. The aim is to provide some useful information and inspiration for the sorting and purification of s‐SWCNTs, as well as the construction of electronic devices with s‐SWCNTs.
High‐purity semiconducting single‐walled carbon nanotubes (s‐SWCNTs) are crucial for electronic applications. Recent significant progress in the solution sorting/processing of s‐SWCNTs and their application in electronic devices is systematically summarized, giving deep insight into the principles and trends for solution sorting/processing of s‐SWCNTs based on the demands of electronic applications.
Photothermal ablation of primary tumors with single‐walled carbon nanotubes is demonstrated to be able to trigger significant adaptive immune responses, which are not observed if tumors are removed ...by surgical resection. Such a treatment in combination with anti‐CTLA‐4 antibody therapy is able to prevent the development of tumor metastasis, which is a major cause of cancer death.
The development of solar energy conversion materials is critical to the growth of a sustainable energy infrastructure in the coming years. A novel hybrid material based on single‐walled carbon ...nanotubes (SWNTs) and form‐stable polymer phase change materials (PCMs) is reported. The obtained materials have UV‐vis sunlight harvesting, light‐thermal conversion, thermal energy storage, and form‐stable effects. Judicious application of this efficient photothermal conversion to SWNTs has opened up a rich field of energy materials based on novel SWNT/PCM composits with enhanced performance in energy conversion and storage.
Novel single‐walled carbon nanotube/phase change material (SWNT/PCM) composites have UV‐vis sunlight harvesting, light‐thermal conversion, thermal energy storage, and form‐stable effects. Upon UV‐vis light irradiation, the light‐to‐heat conversion and thermal storage efficiency (η) of the obtained SWNT/PCM composites is over 0.84 using the photothermal calculation method.
The development of cancer combination therapies, many of which rely on nanoscale theranostic agents, has received increasing attention in recent years. In this work, polyethylene glycol (PEG) ...modified mesoporous silica (MS) coated single‐walled carbon nanotubes (SWNTs) are fabricated and utilized as a multifunctional platform for imaging guided combination therapy of cancer. A model chemotherapy drug, doxorubicin (DOX), could be loaded into the mesoporous structure of the obtained SWNT@MS‐PEG nano‐carriers with high efficiency. Upon stimulation under near‐infrared (NIR) light, photothermally triggered drug release from DOX loaded SWNT@MS‐PEG is observed inside cells, resulting in a synergistic cancer cell killing effect. As revealed by both photoacoustic (PA) and magnetic resonance (MR) imaging, we further uncover efficient tumor accumulation of SWNT@MS‐PEG/DOX after intravenous injection into mice. In vivo combination therapy using this agent is further demonstrated in a mouse tumor model, achieving a remarkable synergistic anti‐tumor effect superior to that obtained by mono‐therapy. Our work presents a new type of theranostic nano‐platform, which could load therapeutic molecules with high efficiency, be responsive to external NIR stimulation, and at the same time serve as a diagnostic imaging agent.
Mesoporous silica coated single‐wall carbon nanotubes with polyethylene glycol functionalization and anti‐cancer drug loading are developed as a multifunctional theranostic platform. Upon systemic administration of such nano‐agent, combined photothermal and chemotherapy, which is under the guidance of multimodal magnetic resonance and photoacoustic imaging, is conducted on an animal tumor model, achieving a great synergistic therapeutic effect.
Multi‐modal imaging guided photothermal therapy with single‐walled carbon nanotubes affords effective destruction of primary tumors together with cancer cells in sentinel lymph nodes. This results in ...remarkably prolonged mouse survival compared to mice treated by elimination of only the primary tumor by either surgery or conventional photothermal therapy.
A nanoscale hybrid filler comprising single‐walled carbon nanotubes and graphite nanoplatelets provides a synergistic effect in the enhancement of thermal conductivity of epoxy composites, which is ...ascribed to the formation of a more efficient percolating network with significantly reduced thermal interface resistance.
A sulfur‐linked carbonyl‐based poly(2,5‐dihydroxyl‐1,4‐benzoquinonyl sulfide) (PDHBQS) compound is synthesized and used as cathode material for lithium‐ion batteries (LIBs). Flexible binder‐free ...composite cathode with single‐wall carbon nanotubes (PDHBQS–SWCNTs) is then fabricated through vacuum filtration method with SWCNTs. Electrochemical measurements show that PDHBQS–SWCNTs cathode can deliver a discharge capacity of 182 mA h g−1 (0.9 mA h cm−2) at a current rate of 50 mA g−1 and a potential window of 1.5 V–3.5 V. The cathode delivers a capacity of 75 mA h g−1 (0.47 mA h cm−2) at 5000 mA g−1, which confirms its good rate performance at high current density. PDHBQS–SWCNTs flexible cathode retains 89% of its initial capacity at 250 mA g−1 after 500 charge–discharge cycles. Furthermore, large‐area (28 cm2) flexible batteries based on PDHBQS–SWCNTs cathode and lithium foils anode are also assembled. The flexible battery shows good electrochemical activities with continuous bending, which retains 88% of its initial discharge capacity after 2000 bending cycles. The significant capacity, high rate performance, superior cyclic performance, and good flexibility make this material a promising candidate for a future application of flexible LIBs.
A carbonyl compound (oligomeric poly(2, 5‐dihydroxyl‐1,4‐benzoquinonyl sulfide)‐based flexible cathode with superior rate performance and cyclic stability is reported. The carbonyl compound is served as active material, and single‐wall carbon nanotube, can act as a current collector and binder. Since all the materials used are inherently flexible, this flexible electrode is ready for a potential application in flexible lithium‐ion batteries.
Emerging solar cells, namely, organic solar cells and perovskite solar cells, are the thin‐film photovoltaics that have light to electricity conversion efficiencies close to that of silicon solar ...cells while possessing advantages in having additional functionalities, facile‐processability, and low fabrication cost. To maximize these advantages, the electrode components must be replaced by materials that are more flexible and cost‐effective. Researchers around the globe have been looking for the new electrodes that meet these requirements. Among many candidates, single‐walled carbon nanotubes have demonstrated their feasibility as the new alternative to conventional electrodes, such as indium tin oxide and metals. This review discusses various growth methods of single‐walled carbon nanotubes and their electrode applications in thin‐film photovoltaics.
Single‐walled carbon nanotube electrodes in organic solar cells and perovskite solar cells are reviewed from a synthesis and applications point of views. The emerging thin‐film solar cells have the potential to become next‐generation flexible and portable energy devices. Replacement of conventional electrodes by single‐walled carbon nanotubes is crucial in achieving such devices.
