Knowledge

PL showed that the pitting appeared after diffusion, which was greatly reduced after etching and cleaning, and the proportion of pitting after oxidation increased significantly, reaching more than 95%.   Suspicions: 1. Oxidation will amplify the pitting produced in the front section; 2. Pockma...

Definition Sheet resistance Refers to the resistance of a semiconductor film or a metal film per unit area Sheet resistance is only related to film thickness and material properties     R-resistance -Ω, ρ- resistivity Ω.cm, L-length -cm, S- area -cm² Rs=ρ/d Rs-s...

This study solves the question of how the doped amorphous silicon layer in silicon heterojunction solar cells treated with hydrofluoric acid (HF) affects their performance. It was found that low concentrations (2.5-5.0%) of HF solutions had different effects on n-type and p-type amorphous silicon la...

Luminescent imaging The basic principle of luminous imaging is to excite the surface of a sample to make it glow, and then capture the luminous image with a camera. Two imaging methods are commonly used in crystalline silicon solar cells PL, Photo-luminescence, photoluminescence, excitation by incid...

Scientists have developed a technique for producing AZO and i-ZnO/AZO bilayer structures in solar cells that greatly improves cell efficiency and durability. Using a low power deposition method that avoids raising the substrate temperature, the team achieved a power conversion efficiency of 9.53% wi...

(1) Texturing Raw material silicon wafer in the cutting process will form about 10 ~ 15 μm thick damage layer on the surface, this layer because of the state of the silicon wafer matrix has been different, basically has been peeled off to the matrix, will seriously affect the performance of solar...

1. HPBC solar cell technology   HPBC-Hybrid Passivated Back Contact is a new generation of high-efficiency solar cell technology characterized by no grid on the front of the solar cell.   HPBC solar cell vs. PERC solar cell   (1) The solar cell technology combines two advanced solar...

BC type solar cells, that is, Back Contact solar cells, is a general term for various types of back-contact structural crystalline silicon solar cells, mainly including IBC, HBC (HJT+IBC), TBC (TOPCon+IBC), HPBC, etc. There is no grid line on the front surface of the solar cell, and the positive and...

Double-sided passivated emitters and backside cells (PERCs) currently have the highest share of the PV market. However, heterojunction (HJT) and tunnel oxide passivation contact (TOPCon) solar cells are expected to gain significant market share soon. Despite technological advances, concerns about th...

Researchers at the University of North Carolina at Chapel Hill and Arizona State University designed a large-area perovskite-silicon tandem solar cell with an open area of 24 square centimeters and achieved a steady-state efficiency output of 25.1%. Current-voltage curve of a perovskite micromodule...

1. XBC solar cell technology   (1) BC is not a completely new solar cell technology   Back Contact, metal electrodes are arranged on the back of the solar cell in a cross-finger shape, creating more light-absorbing area for the front and improving the overall photoelectric conversion effic...

First, copper electroplating helps reduce costs and increase efficiency in the metallization of photovoltaic solar cells 1.1 Constrained by high-cost silver paste, the metallization process of photovoltaic cells needs to be innovated urgently Photovoltaic solar cells are the most core devices for ph...