Our team has successfully prepared a miniature capacitive balance with ultra-high sensitivity (as low as nanograms/piconewtons) using single crystal gold flakes, which can be applied to accurately measure the mass of micro - or nano scale objects and various weak forces. The related achievements were published in the journal Small Methods under the title of "Gold Flake Enabled Miniature Capacity Picolances".

Our team has developed a new method for synthesizing single crystal gold flakes based on polycrystalline gold film recrystallization. This method is simple and efficient, with the advantages of high yield and low pollution. The synthesized gold flakes are flexible and transferable, meeting the needs of different applications. Meanwhile, thanks to the single crystal structure and ultra flat surface, the quality of the surface lattice resonance mode of the nano pillar array prepared using single crystal gold flakes is significantly improved compared to polycrystalline structures. The related achievements were published in the journal ACS Applied Materials&Interfaces under the title of "Retraction Enabled Fabric of Single Crystal Gold Flakes for Plasma Applications".

Professor Zhang Lei's team from Zhejiang University collaborated with our team to successfully prepare an ultra sensitive micro force sensor with a nano Newton level working range and a picoNewton level resolution using the single crystal gold flake provided by our company. The related achievements were published in the ACS Photonics magazine under the title "Optical Nanofiber Enabled Self Detection Picobalance". Congratulations!

Our team has successfully prepared an optical fiber end face non intrinsic Fabry Perot interferometer based on ultra-thin single crystal gold flakes, achieving sound pressure sensing with device miniaturization and high sensitivity characteristics. The related achievements were published in the journal Optics Express under the title "High sensitivity fiber tip acoustic sensor with ultrathin gold diaphragm".

Our team has pioneered an atomic level precision chemical etching method for the preparation of large-sized two-dimensional single crystal gold films, achieving the preparation of large-sized (>100 μ m) single crystal gold flakes with thicknesses as low as the single nanometer level. These flakes have atomic level flat surfaces and can be flexibly transferred and integrated. On this basis, the optical nonlinear effect of quantum confinement enhancement in two-dimensional single crystal gold flakes was revealed, and an ultra-thin plasmonic nanostructure with loss approaching the theoretical limit was achieved by combining nano patterning technology. Nanoscale thickness two-dimensional single crystal gold flakes not only provide an excellent platform for extreme nanophotonics research, but also have important application prospects in fields such as physics, electronics, mechanics, and chemistry. The related achievements were published in the journal Nature Communications under the title "Large area single crystal gold of single nanometer thickness for nanophotonics" and were selected as a featured article.

Professor Zhang Lei's team from Zhejiang University collaborated with our team to successfully prepare a fiber end face Fabry Perot interferometer based on single crystal gold flake provided by our company. The interferometer has high Q value, high sensitivity, and can be used for temperature and pressure sensing. The related achievements were published in the journal ACS Applied Materials&Interfaces under the title "Atomically Smooth Gold Microflade Enabled Fiber Tip Fabry Perot Interferometer for Temperature and Pressure Sensing". Congratulations!

Our team systematically studied the significant effects of using atomic level flat single crystal gold flakes and high-quality gold particles to enhance the quality factor of plasmon resonance and optical response consistency in plasmonic nanocavities. The related achievements were published in the journal Advanced Optical Materials under the title "Effect of Mirror Quality on Optical Response of Nanoparticle on Error Plasma Nanocavities".

Our team utilized atomic level flat single crystal gold flakes as mirrors and combined them with single crystal gold nanorods to prepare single crystal plasmonic nanocavities, demonstrating the rich optical modes of this type of nanocavity and the improvement of resonance scattering intensity and quality factor endowed by single crystal gold flakes. The related achievements were published in the journal Nano Letters under the title "Atomically Smooth Single Crystal Platform for Low Loss Plasmonic Nanocavities".

Our company was registered and established on August 4, 2023. Relying on Jiaxing Research Institute of Zhejiang University and School of College of Optoical Science and Engineering of Zhejiang University, we are committed to the research and production of high-quality nanometallic material preparation technology, providing basic material services for cutting-edge scientific research and applications such as nanophotonics, nanoelectronics, and mechanics.

Our main products include two-dimensional flakes, gold nanocube, gold nanospheres, gold nanorods, etc.