量子点钝化钙钛矿太阳能电池

量子点钝化钙钛矿太阳能电池英文回答：

Colloidal quantum dots (QDs) are a promising new material for photovoltaic applications due to their unique optoelectronic properties. QDs have a tunable bandgap, which can be tailored to absorb light across a wide range of the solar spectrum. They also have a high absorption coefficient, which means that they can efficiently convert light into electrical energy.

Perovskite solar cells are another new type of photovoltaic device that has shown great promise. Perovskite materials have a high absorption coefficient and a long carrier diffusion length, which makes them ideal for use in solar cells. However, perovskite materials are also unstable and degrade quickly in the presence of moisture and oxygen.

Combining QDs and perovskites in a single solar cell

could potentially lead to a device with high efficiency and stability. The QDs would provide the light absorption and charge separation, while the perovskite would provide the charge transport and stability.

One of the challenges in fabricating QD-perovskite

solar cells is the need to passivate the surface of the QDs. The surface of QDs is often covered with defects that can

act as recombination centers for charge carriers. This recombination can reduce the efficiency of the solar cell.

There are a number of different ways to passivate the surface of QDs. One common method is to use a ligand exchange reaction to replace the native ligands on the surface of the QDs with longer-chain ligands. These longer-chain ligands can help to passivate the surface of the QDs and reduce recombination.

Another method for passivating the surface of QDs is to use a capping layer. A capping layer is a thin layer of material that is deposited on the surface of the QDs. Capping layers can help to passivate the surface of the QDs

and prevent them from interacting with the environment.

By passivating the surface of QDs, it is possible to improve the efficiency and stability of QD-perovskite solar cells. This could lead to the development of a new generation of solar cells that are more efficient and more stable than current technologies.

中文回答：

胶体量子点（QDs）凭借其独特的光电特性，成为光伏应用领域

一种极具前景的新型材料。量子点的带隙可调，可定制为吸收太阳

光谱中的宽范围光。它们还具有很高的吸收系数，这意味着它们可

以将光有效地转换成电能。

钙钛矿太阳能电池是另一种显示出巨大前景的新型光伏器件。

钙钛矿材料具有高吸收系数和长的载流子扩散长度，使其成为太阳

能电池的理想选择。然而，钙钛矿材料也不稳定，并且在潮湿和氧

气的存在下会迅速降解。

在单个太阳能电池中将量子点和钙钛矿结合起来，有可能导致

一种具有高效率和稳定性的器件。量子点将提供光吸收和电荷分离，

而钙钛矿将提供电荷传输和稳定性。

在制造 QD-钙钛矿太阳能电池中面临的挑战之一是对量子点的表面进行钝化。量子点的表面通常覆盖有缺陷，这些缺陷可以作为电荷载流子的复合中心。这种复合会降低太阳能电池的效率。

有多种方法可以钝化量子点的表面。一种常见的方法是使用配体交换反应，用更长的链配体取代量子点表面上的天然配体。这些长链配体有助于钝化量子点的表面并减少复合。

钝化量子点表面的另一种方法是使用覆盖层。覆盖层是由沉积在量子点表面的薄材料层。覆盖层有助于钝化量子点的表面，并防止它们与环境相互作用。

通过钝化量子点的表面，可以提高 QD-钙钛矿太阳能电池的效率和稳定性。这可能导致开发出比当前技术更高效、更稳定的新一代太阳能电池。