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[IEEE 2018 19th International Conference on Electronic Packaging Technology (ICEPT) - Shanghai, China (2018.8.8-2018.8.11)] 2018 19th International Conference on Electronic Packaging Technology (ICEPT) - A stretchable translucent conductive film based on polymer microspheres lithography technology
摘要： Transparent and translucent conductor has played an important role in various of photoelectric device electrodes, including photovoltaics (PVs), light-emitting diodes (LEDs), liquid-crystal displays (LCDs), touch-screen panels (TSPs), and radiofrequency identification (RFID) and so on [1, 2]. Some conductive oxides are transparent but do not stretchable. We have confirmed a method based on polystyrene (PS) microspheres to obtain a stretchable transparent conductive film. The homogeneous mono-layer PS microstructure arrays were self-assembled on surface of modified polydimethylsiloxane (PDMS) film, and then the size and spacing distance of the microspheres were adjusted by plasma etching technology to obtain non-closed PS arrays, and the magnetron sputtering technology was used to deposit a layer of conductive metal on the etched microsphere arrays. The stretchable translucent conductive films show relatively high transmittance (53% at 550 nm), and good electrical stability under stretching conditions. They also posses better conformability and conformal on complex curve surfaces than conventional bendable transparent conductive films, and present excellent potential application in flexible electronic and biomedicine fields.
关键词： Stretchable,Polymer microsphere lithography,Self-assembly,Flexible optoelectronics,translucent conductors
更新于2025-09-23 15:21:01
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High‐Performance Flexible Broadband Photodetectors Based on 2D Hafnium Selenosulfide Nanosheets
摘要： 2D transition-metal dichalcogenides have attracted significant interest in recent years due to their multiple degrees of freedom, allowing for tuning their physical properties via band engineering and dimensionality adjustment. The study of ternary 2D hafnium selenosulfide HfSSe (HSS) high-quality single crystals grown with the chemical vapor transport (CVT) technique is reported. An as-grown HSS single crystal exhibits excellent phototransistor performance from the visible to the near-infrared with outstanding stability. A giant photoresponsivity (≈6.4 × 104 A W?1 at 488 nm) and high specific detectivity (≈1014 Jones) are exhibited by a device fabricated by exfoliating single-crystal HSS of nano-thickness on a rigid Si/SiO2 substrate. The application of HSS single crystal is extended to yield a sensible flexible photodetector of photoresponsivity up to ≈1.3 A W?1 at 980 nm. The photoresponsivity of CVT-grown HSS single crystal is significantly larger than those fabricated with other existing Hf-based chalcogenides. The results suggest that the layered multi-elemental 2D chalcogenide single crystals hold great promise for future wearable electronics and integrated optoelectronic circuits.
关键词： crystal growth,photoresponsivity,transition metal dichalcogenides,flexible optoelectronics,specific detectivity
更新于2025-09-19 17:13:59
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Towards High Throughput Texturing of Polymer Foils for Enhanced Light Trapping in Flexible Perovskite Solar Cells using Roll‐to‐roll Hot Embossing
摘要： In this work, a high throughput method is presented to texture polymer foils by roll-to-roll hot embossing with the objective of increasing the substrate haze factor. Triple cation perovskite solar cells were deposited onto these structured substrate showing an efficiency increase up to 15 % (relative) compared to the reference flat device, due to an enhanced light absorption.
关键词： flexible optoelectronics,perovskite solar cells,roll-to-roll hot embossing,direct laser interference patterning,light trapping
更新于2025-09-12 10:27:22
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Organic and hybrid organic-inorganic flexible optoelectronics: Recent advances and perspectives
摘要： Extensive research in flexible optoelectronics, based on organic and organic-inorganic materials, has proven a leading topic because of their superior advantages in solution process-ability, large-area and cost-efficient fabrication. What matters most in the fabrication quality of optoelectronic devices are the materials, optimization of device structures, and manufacturing processe. The materials exhibit great merits, such as power conversion efficiencies (PCEs) for photovoltaic technology or charge mobilities for field effect transistors. Herein, we summarized the recent literature pertaining to materials in the application area of large-scale roll-to-roll (R2R) processable, 3D printed flexible electronics and optoelectronics.
关键词： Large area,Flexible optoelectronics,3D printed,Solution process-ability,Roll-to-roll
更新于2025-09-11 14:15:04