Packaged perovskite solar cell and packaging method

Abstract

The invention provides a packaged perovskite solar cell and a packaging method. The solar cell comprises a transparent conductive substrate, a perovskite solar cell module, a packaging adhesive, a cover plate and a total electrode, wherein the perovskite solar cell module is located on the transparent conductive substrate; the packaging adhesive is arranged on the transparent conductive substrateand forms a packaging space to accommodate the perovskite solar cell module; the edge of the cover plate is connected with the top of the packaging adhesive in a sealing manner so as to enable the perovskite solar cell module to be sealed in the packaging space; the total electrode is arranged on the transparent conductive substrate and completely located outside the packaging space, and electronsare transmitted to the total electrode through the transparent conductive substrate. According to the invention, the total electrode is independently arranged outside the packaging adhesive, and thecharacteristic that the transparent conductive substrate can conduct electricity and transmit electrons is utilized, so that the problem that water and oxygen enter the packaging space through the gapdue to the contact between the packaging adhesive and an electrode leading-out part is avoided, and the transmission of the electrons is not influenced.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a packaged perovskite solar cell and a package method. Background technique [0002] Perovskite solar cells use organic-inorganic hybrid perovskite materials as the light-absorbing layer, which has excellent characteristics such as continuously adjustable band gap, high light absorption coefficient, long carrier diffusion distance, and simple preparation method, making it a Ideal light-absorbing materials for next-generation photovoltaic devices. Since the invention of titanium ore solar cells in 2009, the efficiency has continuously broken through, and the current highest certified efficiency is 25.2%. However, the commercial application of perovskite batteries still needs to solve technical problems such as large-scale large-scale preparation and improvement of long-term environmental stability. Perovskite solar cells are exposed to the air for a long time, and their st...

AI Technical Summary

Problems solved by technology

The filling material is usually vacuum-heated and cured for encapsulation, but during the heating process, the perovskite layer may decompose due to the high temperature

In addition, for packaged perovskite batteries, in order to lead out the positive and negative electrodes of the battery for testing or connecting loads, the positive and negative electrodes of the battery are usually drawn out from the edges of the four-sided sealant or by punching holes on the upper and lower cover plates, for example, patent documents In 1, the lead-out ends of the positive and negative electrodes are in contact with the edge encapsulant, and the gap caused by the contact part may induce the entry of water and oxygen; The tape may move during the lamination process to introduce water and oxygen, and after packaging, water and oxygen may still enter the inside of the packaged battery along the metal conduction tape, causing damage to the perovskite material; in Patent Document 2, the conductive ribbons are separated Lead the positive and negative electrodes of the perovskite solar cell module to the hole area of ​​the back plate. Additional packaging is required for the hole area of ​​the back plate, which may cause water vapor to enter due to unsatisfactory packaging effect and cause perovskite decomposition.

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