2results about How to "Easy and efficient collection" patented technology

The embodiment of the present application provides a perovskite solar cell and a perovskite solar cell module, the perovskite solar cell comprising: a light absorption layer, an up-conversion layer, a first conductive layer and a second conductive layer for collecting opposite type carriers, and a first transport layer and a second transport layer for transporting opposite type carriers, the first conductive layer being a transparent conductive layer, wherein the first transport layer is arranged between the first conductive layer and the light absorption layer, the second transport layer is arranged between the up-conversion layer and the second conductive layer, and the up-conversion layer is arranged on the side of the light absorption layer away from the first transport layer; the up-conversion layer is a halide perovskite structure member of a light-emitting dopant, and the light absorption layer is a perovskite structure member. The energy conversion efficiency of the perovskite solar cell can be effectively improved.

A test device for testing seepage size effect of broken rock mass, vertical support frame includes bottom platform, guide column, adjusting nut and counterforce beam; hydraulic oil cylinder is installed at the center of the lower end of the counterforce beam, and is connected with seepage pressure head through pressure head connecting sleeve; cylinder support seat is installed in the central area of the upper end of the bottom platform, and has hollow accommodating cavity in the inside, a plurality of through holes are arranged at the upper end of the cylinder support seat; seepage cylinder is vertically installed on the cylinder support seat; upper and lower seepage plates are arranged at the top and bottom of the inner cavity of the seepage cylinder respectively; broken rock mass sample is filled in the inside of the seepage cylinder; conical collecting hopper is fixedly installed in the hollow accommodating cavity; the inlet end of the conveying pipeline is connected with the outlet end of the conical collecting head, and the outlet end penetrates out to the outside of the cylinder support seat; measuring cup is arranged below the outlet end of the conveying pipeline; filter screen is installed at the upper end of the measuring cup. The device can be used for testing seepage test of broken rock mass with different sizes and broken rock mass water and sand seepage test.