Hong Kong Polytechnic University

About: Hong Kong Polytechnic University is a education organization based out in Hong Kong, China. It is known for research contribution in the topics: Tourism & Population. The organization has 29633 authors who have published 72136 publications receiving 1956312 citations. The organization is also known as: HKPU & PolyU.

Waterproof, Ultrahigh Areal-Capacitance, Wearable Supercapacitor Fabrics.

Abstract: High-performance supercapacitors (SCs) are promising energy storage devices to meet the pressing demand for future wearable applications. Because the surface area of a human body is limited to 2 m2 , the key challenge in this field is how to realize a high areal capacitance for SCs, while achieving rapid charging, good capacitive retention, flexibility, and waterproofing. To address this challenge, low-cost materials are used including multiwall carbon nanotube (MWCNT), reduced graphene oxide (RGO), and metallic textiles to fabricate composite fabric electrodes, in which MWCNT and RGO are alternatively vacuum-filtrated directly onto Ni-coated cotton fabrics. The composite fabric electrodes display typical electrical double layer capacitor behavior, and reach an ultrahigh areal capacitance up to 6.2 F cm-2 at a high areal current density of 20 mA cm-2 . All-solid-state fabric-type SC devices made with the composite fabric electrodes and water-repellent treatment can reach record-breaking performance of 2.7 F cm-2 at 20 mA cm-2 at the first charge-discharge cycle, 3.2 F cm-2 after 10 000 charge-discharge cycles, zero capacitive decay after 10 000 bending tests, and 10 h continuous underwater operation. The SC devices are easy to assemble into tandem structures and integrate into garments by simple sewing.

The Impact of Customer-to-Customer Interaction on Cruise Experience and Vacation Satisfaction

Abstract: While the role of customer-to-customer (C2C) interaction in shaping service experience has been recognized in the services marketing literature, empirical examination of this issue is limited Similarly, investigation of tourists’ social contacts has mainly focused on the tourist—local community and tourist—service personnel dyads, while much less is known about tourist-to-tourist interactions To fill this knowledge gap, this study has examined interaction between tourists on cruise vacations and its impact on the cruise experience and vacation satisfaction An online survey is conducted with an American online panel (n = 613) The findings reveal that the quality of C2C interaction has positive direct impacts on the cruise experience as well as indirect effects on vacation satisfaction, mediated by cruise experience Moreover, the quality of C2C interaction has suppressor effects on the quantity of C2C interaction The results call for the incorporation of C2C interaction as one component of the relatio

Fast, Self-Driven, Air-Stable, and Broadband Photodetector Based on Vertically Aligned PtSe2/GaAs Heterojunction

Abstract: This work shows the large‐area growth of high‐quality vertically aligned PtSe 2 , and its application to photodetectors based on PtSe 2 ‐GaAs heterojunctions which exhibit a broadband sensitivity to illumination ranging from deep ultraviolet to near‐infrared light, with a peak sensitivity in the region from 650 to 810 nm. The high‐performance broadband photodetector will develop the next‐generation 2D Group‐10 materials based optoelectronic devices.