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Perovskite solar cell

A solar cell and perovskite technology, applied in the field of solar cells, can solve the requirements of restricting the long-term use of perovskite solar cells, the energy level mismatch of the perovskite light absorbing layer, and the poor stability, so as to improve the photoelectric conversion efficiency. Effects of open-circuit voltage, loss avoidance, and enhancement of film-forming properties

Inactive Publication Date: 2017-08-18
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

In this structural system, the currently widely used hole transport layer is an acidic polymer, which has problems such as high cost, poor stability, and energy level mismatch with the perovskite light-absorbing layer, which limits the long-term use of perovskite solar cells.

Method used

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Embodiment Construction

[0022] In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Such as figure 1 A perovskite solar cell shown includes a transparent conductive electrode layer 1, a hole transport layer 2, a perovskite light-absorbing layer 3, an electron transport layer 4, a hole blocking layer 5 and a metal Electrode layer 6; the hole transport layer is prepared from rubrene, or PEDOT:PSS and rubrene composite material, wherein the thi...

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Abstract

The invention belongs to the field of solar cells, and specifically relates to a perovskite solar cell. The perovskite solar cell comprises a transparent conductive electrode layer, a hole transport layer, a perovskite light absorption layer, an electron transport layer, a hole blocking layer and a metal electrode layer which are sequentially arranged from the bottom up, wherein the hole transport layer is prepared by adopting rubrene or a composite material of PEDOT:PSS and rubrene, and the thickness ratio of PEDOT:PSS and rubrene is 5:(3-5). Compared with the prior art, the perovskite solar cell is higher in conversion efficiency and higher in open-circuit voltage.

Description

technical field [0001] The invention belongs to the field of solar cells, in particular to a perovskite solar cell. Background technique [0002] With the consumption of energy, energy crisis and environmental problems have become important issues facing the world, and solar photovoltaic power generation has become an ideal solution to human energy crisis and environmental pollution. High power conversion efficiency and low manufacturing cost are prerequisites for popularizing photovoltaic power generation. Therefore, high efficiency and low cost are the goals that people are constantly pursuing in the field of solar cells. [0003] In the current field of solar cell development, silicon cells dominate all kinds of photovoltaic devices with their mature technology and high photoelectric conversion efficiency, but the high price limits the wide application of this type of cells. Since the first report of perovskite solar cells in 2009, perovskite solar cells have developed ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K85/30H10K30/451H10K30/15Y02E10/549
Inventor 陈淑芬章琴汪成新黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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