A method to improve the photoelectric conversion efficiency of perovskite solar cells
A technology of photoelectric conversion efficiency and solar cells, which is applied in the field of solar cells, can solve the problems of poor battery performance and large PCBM roughness, and achieve the effects of improving photoelectric conversion efficiency and open circuit voltage, excellent quality, and excellent photoelectric conversion efficiency
Active Publication Date: 2022-06-03
NANJING UNIV OF POSTS & TELECOMM
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[0004] In order to overcome the shortcomings of poor battery performance caused by the large roughness of the PCBM prepared on the perovskite film in the above technology and poor contact with the counter electrode, and prepare a device with excellent performance, the purpose of the present invention is to provide a Methods to improve the electrical conversion efficiency of perovskite solar cells
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The invention discloses a method for improving the photoelectric conversion efficiency of a perovskite solar cell, comprising the following steps: step a, adding ammonium hypophosphite to a perovskite precursor solution, and dissolving to form a mixed solution; step b, adding step a The obtained mixed solution is spin-coated on the perovskite precursor substrate, and heated to form a perovskite film; step c, spin-coating a hole transport layer on the perovskite film obtained in step b, and then spin-coating a layer of interface modification Materials, vapor-deposited metal electrodes, assembled to form perovskite solar cell devices. The method of the invention can produce a perovskite thin film with excellent quality, and at the same time make it more compatible with the work function of the electrode, and the prepared perovskite solar cell device can obtain excellent photoelectric conversion efficiency.
Description
A method to improve the photoelectric conversion efficiency of perovskite solar cells technical field The invention belongs to the technical field of solar cells, be specifically related to a kind of photoelectric conversion that improves perovskite solar cells efficient method. Background technique Photoelectric conversion of solar energy is realized by utilizing solar cells, organic-inorganic perovskite solar cells As a new third-generation solar cell, the development speed is amazing. From 2009 to 2018, the photoelectric conversion efficiency is fast. The rapid increase, the latest report has reached 22.1%. Solar cells based on this material are called perovskite solar cells Pools, referred to as PSCs. According to the relative position of the electron transport layer and the hole transport layer, PSCs are divided into inverted and upright solar cells. In inverted batteries, the main hole transport materials are poly-3,4-ethylenedioxythiophene:poly(styrene su...
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IPC IPC(8): H01L51/48H01L51/42H01L51/46
CPCH10K71/12H10K30/30H10K2102/00Y02E10/549
Inventor 赖文勇雷刚徐巍栋黄维
Owner NANJING UNIV OF POSTS & TELECOMM