Optical-electrical characteristic of green based on GaN micro-LED arrays.

A detailed theoretical derivation and calculation method of the difference coefficient between a light distribution pattern of a 30×20µ green micro-LED array and Lambert source is proposed first in this paper, to the best of our knowledge, which establishes an accurate relationship between external quantum efficiency and current efficiency (cd/A). The variation of capacitance with voltage and wavelength blueshift is illustrated by a carrier recombination mechanism. The current efficiency reaches 132.

A Preliminary Exploration of Landscape Preferences Based on Naturalness and Visual Openness for College Students With Different Moods.

The interaction between man and nature causes people to have different preferences for their surrounding environment, and pleasant landscapes can bring both physical and mental benefits to people. Previous studies have demonstrated the relationship between moods and landscape preferences, and this study sought to explore the landscape preferences of college students under different moods. A total of 1,034 students participated in the survey, recovering 1,022 valid questionnaires.

Chemically assembling chromium vanadate into an urchin-like porous rich matrix with ultrathin nanosheets for rapid Zn storage.

Aqueous zinc ion battery (AZIB) is a promising battery system developed in recent years, which has the advantages of safety, environmental protection and low price. However, it is still a puzzle to develop and improve cathode materials with satisfactory performance. In this paper, the chromium vanadate (CrVO) electrode material was reported for the first time.

Full-color micro-LED displays with cadmium-free quantum dots patterned by photolithography technology: retraction.

The referenced article [Appl. Opt.59, 11112 (2020)APOPAI0003-693510.

Full-color micro-LED displays with cadmium-free quantum dots patterned by photolithography technology.

A full-color display consisting of red and green photoluminescence cadmium-free quantum dots (QDs) as the color conversion material and excited by a 68×68 blue micro-LED flip chip array mounted on an active-matrix driving board was completed in this study. The QD photoresist (QDPR) lithography technology was reported in detail, and it has been proven to be a stable process route. The suitable thickness of 12±1µ of the QDPR and black matrix was proposed to reduce the light cross talk between different sub-pixels.