Effects of Fluorine Doping on the Electrical Performance of ZnON Thin-Film Transistors

Kim, Jong Heon; Park, Kyung; Kim, Jung Hyun; Park, Jozeph; Kim, Yong Joo; Kim, Hyun Suk

doi:10.1021/acsami.7b03385

Cited by 33 publications

(36 citation statements)

References 37 publications

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“…Kim et al. [ 216 ] introduced a capacitive strain sensor fabricated from Ag nanowires embedded in a PDMS substrate in an interdigitated pattern. The sensor achieved a GF of −2.0, no hysteresis behavior up to a strain of 15% and was used to detect finger and wrist motions.…”

Section: Emerging Sensor Technologiesmentioning

confidence: 99%

Wearable Soft Technologies for Haptic Sensing and Feedback

Yin

Hinchet

Shea

et al. 2020

Adv Funct Materials

165

137

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Virtual reality (VR) and augmented reality (AR) systems have garnered recent widespread attention due to increased accessibility, functionality, and affordability. These systems sense user inputs and typically provide haptic, audio, and visual feedback to blend interactive virtual environments with the real world for an enhanced or simulated reality experience. With applications ranging from immersive entertainment, to teleoperation, to physical therapy, further development of this technology has the potential for impact across multiple disciplines. However, VR/AR devices still face critical challenges that hinder integration into everyday life and additional applications; namely, the rigid and cumbersome form factor of current technology that is incompatible with the dynamic movements and pliable limbs of the human body. Recent advancements in the field of soft materials are uniquely suited to provide solutions to this challenge. Devices fabricated from flexible and elastic bio‐compatible materials have significantly greater compatibility with the human body and could lead to a more natural VR/AR experience. This review reports state‐of‐the‐art experimental studies in soft materials for wearable sensing and haptic feedback in VR/AR applications, explores emerging soft technologies for on‐body devices, and identifies current challenges and future opportunities toward seamless integration of the virtual and physical world.

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Section: Emerging Sensor Technologiesmentioning

confidence: 99%

Wearable Soft Technologies for Haptic Sensing and Feedback

Yin

Hinchet

Shea

et al. 2020

Adv Funct Materials

165

137

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show abstract

“…The strain in capacitive sensors induces geometrical changes between the two electrodes, which leads to a change in capacitance. These two sensors have a simple structure [ 70–75 ] and good linearity, [ 76–78 ] respectively.…”

Section: Nanowire‐based Wearable Skin Sensory Input Interfacesmentioning

confidence: 99%

Nanowire‐Based Soft Wearable Human–Machine Interfaces for Future Virtual and Augmented Reality Applications

Wang

Yap

Gong

et al. 2021

Adv Funct Materials

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A virtual world has now become a reality as augmented reality (AR) and virtual reality (VR) technology become commercially available. Similar to how humans interact with the physical world, AR and VR systems rely on human–machine interface (HMI) sensors to interact with the virtual world. Currently, this is achieved via state of‐the‐art wearable visual and auditory tools that are rigid, bulky, and burdensome, thereby causing discomfort during practical application. To this end, a skin sensory interface has the potential to serve as the next‐generation AR/VR technology because skin‐like wearable sensors have advantages in that they can be ultrathin, ultra‐soft, conformal, and imperceptible, which provides the ultimate comfort and immersive experience for users. In this progress report, nanowire‐based soft wearable HMI sensors including acoustic, strain, pressure sensors, and physiological sensors are reviewed that may be adopted as skin sensory inputs in future AR/VR systems. Further, nanowire‐based soft contact lenses, haptic force, and thermal and vibration actuators are covered as potential means of feedback for future AR/VR systems. Considering the possible effects of the virtual world on human health, skin‐like wearable artery pulses, glucose, and lactate sensors are also described, which may enable imperceptible health monitoring during future AR/VR practices.

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“…The flexible transparent electrodes are critical to achieve high transparency of the device. Ultrathin silver nanowire (AgNW) films, which exhibit high transparency as well as high flexibility, [ 26–28 ] were used as the flexible transparent electrodes in the sensors. AgNWs having an average diameter of ≈30 nm and an average length of ≈30 µm were spray‐coated on the surface of a thin polyimide (PI) film (Figure S6, Supporting Information).…”

Section: Figurementioning

confidence: 99%

Highly Transparent and Flexible Iontronic Pressure Sensors Based on an Opaque to Transparent Transition

et al. 2020

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Human–computer interfaces, smart glasses, touch screens, and some electronic skins require highly transparent and flexible pressure‐sensing elements. Flexible pressure sensors often apply a microstructured or porous active material to improve their sensitivity and response speed. However, the microstructures or small pores will result in high haze and low transparency of the device, and thus it is challenging to balance the sensitivity and transparency simultaneously in flexible pressure sensors or electronic skins. Here, for a capacitive‐type sensor that consists of a porous polyvinylidene fluoride (PVDF) film sandwiched between two transparent electrodes, the challenge is addressed by filling the pores with ionic liquid that has the same refractive index with PVDF, and the transmittance of the film dramatically boosts from 0 to 94.8% in the visible range. Apart from optical matching, the ionic liquid also significantly improves the signal intensity as well as the sensitivity due to the formation of an electric double layer at the dielectric‐electrode interfaces, and improves the toughness and stretchability of the active material benefiting from a plasticization effect. Such transparent and flexible sensors will be useful in smart windows, invisible bands, and so forth.

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Effects of Fluorine Doping on the Electrical Performance of ZnON Thin-Film Transistors

Cited by 33 publications

References 37 publications

Wearable Soft Technologies for Haptic Sensing and Feedback

Wearable Soft Technologies for Haptic Sensing and Feedback

Nanowire‐Based Soft Wearable Human–Machine Interfaces for Future Virtual and Augmented Reality Applications

Highly Transparent and Flexible Iontronic Pressure Sensors Based on an Opaque to Transparent Transition

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