Chinese Academy of Sciences

Jilin University

Gpixel Changchun Optotech Inc.

Yang Li

Min Zhang

Peng Wang

Junqi Sun

Xiang Li

Yameng Ren

Cheng Ma

Junting Wang

Tao Jiang

Zilin Wang

A readout circuit, for at least one sensing element, includes an amplifier including an input node for receiving charges from the sensing element or elements and an output node, a first feedback loop comprising a feedback capacitor, and at least one second feedback loop comprising another feedback capacitor, between the output and input nodes of the amplifier, for defining different gains. The at least two feedback capacitors being each connectable to a reference voltage supply via respective switches, for pre-loading the feedback capacitors with a predetermined charge different from the charge obtainable from the at least one sensing element, for sampling signals at a reset level before charge transferal. The loops comprising a respective switch between their capacitors and the output node, for operatively connecting and disconnecting each loop, for obtaining reset voltages at two different gains and signal voltages at two different gains.

High dynamic range capacitor transimpedance amplifier

The invention provides an anthracene-based organic dye and a preparation method thereof. The organic dye provided by the invention has a structure of formula (I) or formula (II), wherein R, R, and Rto Rare as defined herein. The organic dye provided by the invention is obtained by modifying an anthracene with Rand Ror modifying anthracene-based groups decorated with an aryl group or a heteroaryl group with Rand R, thereby the power conversion efficiency of a dye sensitized solar cell is significantly improved when the organic dye prepared according to the present invention is applied in a dye-sensitized solar cell. Furthermore, the preparation method of the organic dye according to the present invention is quite simple together with abundant raw materials and low cost, making it possible to be commercialized.

Anthracene-based organic dyes and preparation methods thereof

A method of preparing a water-based adhesive with high binding property based on polymer composites is provided, belonging to the technical field of preparation of water-based adhesives. The present invention specifically relates to a method of forming a polymer composite by blending solutions and then preparing the water-based adhesive with high binding property. The preparation method of the present invention is simple, obtaining the composite polymer hydrogel merely by blending solutions, with the dense water-based adhesive produced by centrifugation. This water-based adhesive is formed based on multiple weak interactions among the polymers, with the forming process simple and efficient and involving no sophisticated instruments and equipment; no organic solvent needs to be added in the preparation process, odor free, non-toxic and environment-protective, and common raw materials are used that are inexpensive. This water-based adhesive can be used for bonding glass, metal, wood, plastic and other various materials, and has high binding strength, allowing the materials (except plastic) to be bonded directly without surface pretreatment or modification. It is expected that the water-based adhesive prepared by the present invention will be applied in a wide range of fields.

Method of preparing a water-based adhesive with high binding property based on polymer composites

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Changchun, China

Yang Li