Trina Solar Co., Ltd.

Yunyun Hu

Daming Chen

Yifeng Chen

Wei Liu

Guangtao Yang

Xueling Zhang

Zhuohan Zhang

Guanchao Xu

Kuiyi Wu

Wenxian Ji

Zhiyuan Liu

Rui Yang

The present disclosure provides an interdigitated back contact cell and a manufacturing method thereof. The interdigitated back contact cell includes: a substrate including a front side and a back side, the front side being arranged opposite to the back side; where, along a first direction, first functional regions and second functional regions are alternately arranged on the back side of the substrate; an isolation region is arranged between every adjacent first functional region and second functional region; and the first emitter is spatially isolated from one adjacent second emitter by a corresponding isolation region; and the first diffusion layer is in contact with at least one adjacent second diffusion layer in a corresponding region of a corresponding isolation region. The interdigitated back contact cell provided by the present disclosure has a lower reverse breakdown voltage, a high component reliability, and a high cell efficiency.

Interdigitated back contact cell and manufacturing method thereof

The present application relates to a solar cell, a method for manufacturing the same, a photovoltaic module and a photovoltaic system. The solar cell includes: a substrate (), including a first surface (S) and a second surface (S) being opposite to each other, wherein the first surface (S) has a first region (A) and a second region (B) adjacent to each other in a first direction; a passivating contact layer (), located in the first region (A) of the first surface (S); a polysilicon layer () located on at least a part of a surface of the passivating contact layer () away from the substrate (); the passivating contact layer () including a first tunneling layer () and a first doped layer (), the first tunneling layer () and the first doped layer () being sequentially stacked on the first region (A) of the first surface (S) of the substrate () in a direction away from the second surface (S); and a first passivation layer (), located on a surface of the polysilicon layer () away from the passivating contact layer () and on the second region (B) of the first surface (S).

Solar cell, method for manufacturing the same, photovoltaic module and photovoltaic system

The present disclosure provides a hybrid heterojunction solar cell, a cell component, and a preparation method, the hybrid heterojunction solar cell comprises a semiconductor substrate having a substrate front surface and a substrate back surface opposite to each other, wherein the substrate front surface is close to a light-facing side of the cell and the substrate back surface is close to a backlight side of the cell; at least two composite layers located on one side of the substrate front surface, each composite layer includes a multi-layer structure of a tunneling layer and a doped polysilicon layer sequentially arranged in a direction gradually away from the substrate front surface. The hybrid heterojunction solar cell, cell component and a preparation method provided by this disclosure can achieve a stable passivation effect on the cell surface, reduce light absorption in the non-metallic areas of the cell, and achieve better process control at the same time.

Hybrid heterojunction solar cell, cell component and preparation method

The present disclosure provides a solar cell including a substrate, a first emitter, a second emitter, an insulating spacing structure, a first electrode, and a second electrode. The substrate includes a front surface and a back surface opposite to each other. The first emitter and the second emitter are disposed on the back surface of the substrate. The first electrode is disposed on a side of the first emitter away from the substrate, and the first electrode is electrically connected to the first emitter. The second electrode is disposed on a side of the second emitter away from the substrate, and the second electrode is electrically connected to the second emitter. The insulating spacing structure is disposed between the first emitter and the second emitter, and the first emitter and the second emitter are spaced from each other by the insulating spacing structure.

Solar cell and method for preparing the same

Growing community of inventors

Changzhou, China

Yunyun Hu