Ultrastable, Deformable, and Stretchable Luminescent Organic–Inorganic Perovskite Nanocrystal–Polymer Composites for 3D Printing and White Light-Emitting Diodes

Tai, Ching Lan; Hong, Wei; Kuo, Yi Tong; Chang, Chi-Yao; Niu, Mu Chun; Mahesh, K.P.O.; Hsu, Cheng‐Hsing; Horng, Sheng Fu; Chao, Yu Chiang

doi:10.1021/acsami.9b06248

Cited by 37 publications

(24 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We demonstrated for the rst time that by blending Cs 3 Cu 2 I 5 NCs with a PMMA polymer composite, a free-standing lm could be obtained without a substrate and this lm could be used for down-conversion ltering applications. The use of chemically stable polymers (PMMA and polystyrene) creates a framework for embedding conventional lead halide perovskite NCs; therefore, the lm has improved stability against heat, light, and water owing to the hydrophobic protective property of polymers [40][41][42] . To prepare the free-standing Cs 3 Cu 2 I 5 NCs blended with the PMMA lm, a puri ed Cs 3 Cu 2 I 5 NC colloidal solution (10 mg mL -1 in toluene) was mixed with a PMMA solution (25 wt% in chloroform) in a 1:3 volume ratio, and then, the mixture was kneaded for 2 min.…”

Section: Resultsmentioning

confidence: 99%

Gel Permeation Chromatography Process For Highly Oriented Cs3Cu2I5 Nanocrystal Film

Cheng

Suzuki

Shinotsuka

et al. 2021

Preprint

View full text Add to dashboard Cite

The emergence of green materials has attracted considerable attention in the field of optoelectronics. Copper-based lead-free halide perovskite (with a near-unity quantum yield) obtained from Cs3Cu2I5 nanocrystals (NCs) can exhibit blue emission with a wavelength of 440 nm and provide outstanding stability for various applications. However, in practical applications, colloidal dispersion purity and film quality are inadequate toward a high-performance device. In this study, antisolvent-free gel permeation chromatography is used to purify Cs3Cu2I5 NCs. The purified Cs3Cu2I5 NCs exhibit a high photoluminescent quantum yield and provide a highly oriented single-crystal film. Density functional theory calculation results indicate that the iodide-rich phase in the NCs makes them highly stable. In addition, it has been demonstrated for the first time that the mixture of polymethyl methacrylate (PMMA) and Cs3Cu2I5 NCs has waterproofing capabilities. The composite film consisting of Cs3Cu2I5 NCs and PMMA can survive in water for several days. This result opens up more possibilities for the application of these green material.

show abstract

Section: Resultsmentioning

confidence: 99%

Gel Permeation Chromatography Process For Highly Oriented Cs3Cu2I5 Nanocrystal Film

Cheng

Suzuki

Shinotsuka

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…For the on‐skin usage, light‐emitting devices are expected to be thin, flexible, and exhibit comparable performance (e.g., high luminance efficiency and color purity) to that of a rigid display. [ 138 ] Due to the expeditious development in nanomaterials and assembling technologies, flexible/stretchable electrode materials (e.g., CNTs, [ 139 ] graphene, [ 140 ] metal NWs, [ 141 ] and hybrids [ 141 ] ), emissive materials (e.g., organic polymers, [ 142 ] QDs, [ 143 ] and hybrids [ 144 ] ), and stretchable structures (e.g., island design, [ 145 ] “wavy” structure, [ 146 ] and composite [ 147 ] ) have been developed for fabricating high‐performance soft displays. In the following, we will introduce representative examples of current on‐skin smart displays with various sensing functions.…”

Section: Outputmentioning

confidence: 99%

Skin Electronics: Next‐Generation Device Platform for Virtual and Augmented Reality

Kim

Wang

et al. 2021

Adv Funct Materials

126

View full text Add to dashboard Cite

Virtual reality (VR) and augmented reality (AR) are overcoming the physical limits of real‐life using advances in devices and software. In particular, the recent restrictions in transportation from the coronavirus disease 2019 (COVID‐19) pandemic are making people more interested in these virtual experiences. However, to minimize the differences between artificial and natural perception, more human‐interactive and human‐like devices are necessary. The skin is the largest organ of the human body and interacts with the environment as the site of interfacing and sensing. Recent progress in skin electronics has enabled the use of the skin as the mounting object of functional devices and the signal pathway bridging humans and computers, with opening its potential in future VR and AR applications. In this review, the current skin electronics are summarized as one of the most promising device solutions for future VR/AR devices, especially focusing on the recent materials and structures. After defining and explaining VR/AR systems and the components, the advantages of skin electronics for VR/AR applications are emphasized. Next, the detailed functionalities of skin electronic devices, including the input, output, energy devices, and integrated systems, are reviewed for future VR/AR applications.

show abstract

“…Tai et al investigated several thermoplastic polymers as protective coatings for perovskite materials and incorporated the effort into light-emitting diode (LED) devices with various emission wavelengths. It was further noted that there was fluorescent behavior of some of the printed structures resulting from this effort [17]. Others have focused on photo-luminescent materials as structural materials [18].…”

Section: Introductionmentioning

confidence: 96%

“…Many of the FDM-oriented approaches have focused on uses like photoelectric sensing [16] or light production [17][18][19]. Zhao et al advanced the general formation of perovskite crystals from disordered to ordered via electric field, producing a more orderly crystal deposition for use in a photosensor with high sensitivity, high stability, and good response [16].…”

Section: Introductionmentioning

confidence: 99%

Investigations of Fused Deposition Modeling for Perovskite Active Solar Cells

Weiss¹,

Sonsalla²

2022

Polymers

View full text Add to dashboard Cite

The advent of Fused Deposition Modeling (FDM; or 3D printing) has significantly changed the way many products are designed and built. It has even opened opportunities to fabricate new products on-site and on-demand. In addition, parallel efforts that introduce new materials into the FDM process have seen great advances as well. New additives have been demonstrably utilized to achieve thermal, electrical, and structural property improvements. This combination of fabrication flexibility and material additives make FDM an ideal candidate for investigation of perovskite materials in new solar cell efforts. In this work, we fabricate and characterize a perovskite-based solar cell polymer designed for the FDM fabrication processes. Perovskite solar cells have garnered major research interest since their discovery in 2009. Perovskites, specifically methylammonium lead iodide, offer beneficial properties to solar cell fabrication such as long minority charge carrier distance, high light absorption, and simple fabrication methods. Despite the great potential of these materials, however, stability remains an issue in solar cell utilization as the material degrades under ultraviolet light, exposure to oxygen and water, as well as increased temperatures. To mitigate degradation, different fabrication methods have been utilized. Additionally, multiple groups have utilized encapsulation methods post-fabrication and in situ solution processed integration of polymer materials into the solar cell to prevent degradation. In this paper, we leverage the unique ability of FDM to encapsulate perovskite materials and yield a MAPbI3-PCL solar material as the active layer for solar cell use. In this manner, increased ability to resist UV light degradation and material stability from other environmental factors can be achieved. This study provides characterization of the material via multiple techniques like SEM (Scanning Electron Microscopy) and XRD (X-ray Diffraction) as well as absorbance, transmittance, and photocurrent response. Investigations of processing on perovskite degradation as well as initial solar simulated response are recorded. Unique aspects of the resulting material and process are noted including improved performance with increased operating temperature. Increased electron–hole pair generation is observed for 200 μm FDM-printed PCL film, achieving a 45% reduction in resistance under peak incident flux of 590 W/m2 with the addition of MAPbl3. This work establishes insight into the use of FDM for full solar cell fabrication and points to the next steps of research and development in this growing field.

show abstract

Ultrastable, Deformable, and Stretchable Luminescent Organic–Inorganic Perovskite Nanocrystal–Polymer Composites for 3D Printing and White Light-Emitting Diodes

Cited by 37 publications

References 70 publications

Gel Permeation Chromatography Process For Highly Oriented Cs3Cu2I5 Nanocrystal Film

Gel Permeation Chromatography Process For Highly Oriented Cs3Cu2I5 Nanocrystal Film

Skin Electronics: Next‐Generation Device Platform for Virtual and Augmented Reality

Investigations of Fused Deposition Modeling for Perovskite Active Solar Cells

Contact Info

Product

Resources

About