Fabrication method of Ag/ZnO core-shell structure nanorod array electrode material

A nanorod array and core-shell structure technology, applied in the field of solar cells, can solve the problems of low charge collection efficiency of solar cells, and achieve the effects of low production cost, simple operation, and easy process control

Active Publication Date: 2018-11-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, in order to solve the problem of low charge collection efficiency of new generation solar cells, propose a preparation method of Ag / ZnO core-shell structure nanorod array electrode material

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Embodiment Construction

[0017] The implementation of the method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] A method for preparing an Ag / ZnO core-shell structure nanorod array electrode material, the specific steps comprising:

[0019] Step 1. Clean the ITO glass substrate (14mm x 14mm) ultrasonically with detergent, acetone, isopropanol, and ethanol for 10 minutes in sequence, and finally dry it with dry nitrogen for use.

[0020] Step two, such as figure 1 As shown in a, put the ITO glass substrate into the vacuum sputtering machine (vacuum degree ~ 10 -7 mbarr), followed by sputtering the bonding layer Ti (5nm), nucleation layer Au (2nm) and Al film (150nm).

[0021] Step three, such as figure 1 As shown in b, the above sample is anodized in 0.1M oxalic acid aqueous solution at 5°C (the cathode is a ring-shaped Pt electrode), and the applied voltage is 60V for about 5min to form porous Al 2 o 3 , and then put into 5wt% pho...

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Abstract

The invention discloses a fabrication method of an Ag / ZnO core-shell structure nanorod array electrode material. The fabrication method comprises the steps of (1) electrically depositing a silver nanorod array on a conductive glass substrate; (2) fabricating pinhole-free conformal ZnO coating layer; (3) spinning a polymer; and (4) evaporating a buffer layer and a metal electrode. With the Ag / ZnO core-shell structure nanorod array electrode material fabricated by the method, the efficiency of transmitting charges in a solar cell to an electrode can be substantially improved, the electron-hole recombination rate is effectively reduced, and the photoelectric conversion efficiency is favorably improved; and the fabrication method is simple to operate, is suitable for production on a large scale and is relatively low in production cost, the process is easy to control, and thus, the fabrication method is suitable for industrial protection on a large scale.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a method for preparing an Ag / ZnO core-shell structure nanorod array electrode material. Background technique [0002] A new generation of solar cells, including organic solar cells, solid-state dye-sensitized solar cells, organic-inorganic hybrid solar cells, etc., is increasingly popular due to its advantages of low cost, light weight, flexible and simple preparation process, and can also be extended to flexible substrates. Widespread interest in science and industry. However, compared with traditional inorganic solar cells (such as silicon solar cells), the conversion efficiency is still low, and the low charge collection rate is an important reason restricting the device efficiency. [0003] In recent years, researchers have proposed and developed nanostructure (nanowire, nanorod) electrodes to solve the problem of low charge collection rate. For example, Chinese Patent ...

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Application Information

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IPC IPC(8): H01L51/44H01L51/48
CPCH10K71/60H10K30/81Y02E10/549
Inventor 冯钰贻卢卡斯·施密特·门德王涌天金光大保罗·金克莱顿·奈米茨乔纳斯·魏克特詹姆斯·多尔曼
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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