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A method for manufacture a perovskite solar cell which enhances humidity resistance stability and photoelectric performance

A photoelectric performance, solar cell technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problems of stability hindering the commercialization of perovskite solar cells, easy to decompose, devices are not resistant to humidity, etc., to achieve novel technology, raw materials Ease of availability, improved humidity resistance and stability

Inactive Publication Date: 2019-01-08
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the stability has become a major problem hindering the commercialization of perovskite solar cells, and the current devices are still not resistant to humidity and lead to CH 3 NH 3 The shortcomings of I are easy to decompose when it encounters water vapor, which limits its practical application

Method used

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  • A method for manufacture a perovskite solar cell which enhances humidity resistance stability and photoelectric performance
  • A method for manufacture a perovskite solar cell which enhances humidity resistance stability and photoelectric performance
  • A method for manufacture a perovskite solar cell which enhances humidity resistance stability and photoelectric performance

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Experimental program
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Effect test

Embodiment 1

[0043] The etched ITO conductive glass was cleaned with acetone, deionized water and absolute ethanol for 15 minutes respectively, blown dry with nitrogen, and then treated in an ultraviolet ozone atmosphere for 15 minutes; dynamic spin-coating PEODT:PSS solution. The PEODT:PSS solutions of all embodiments of the present invention are all from Xi'an Baolaite Optoelectronics Technology Co., Ltd.

[0044] The dynamic spin coating process is as follows: the speed of the spin coater is adjusted to 2000 rpm for 10 seconds, and the PEODT:PSS solution is added dropwise during this process, then changed to 5000 rpm for 30 seconds, and taken out at a temperature of 120 degrees Celsius. Heated on the heating plate for 40 minutes; then spin-coated PbI 2 - tBP precursor solution, PbI 2 The solution concentration is 1.2 mol / ml, tBP:PbI 2 The solution volume ratio is 1:25, the spin coating speed is 4500 rpm, and the spin coating time is 30 seconds. Take it out and heat it on a heating pla...

Embodiment 2

[0050] The etched ITO conductive glass was cleaned with acetone, deionized water and absolute ethanol for 15 minutes respectively, blown dry with nitrogen, and then treated in an ultraviolet ozone atmosphere for 15 minutes; dynamic spin-coating PEODT:PSS solution. The dynamic spin coating process is as follows: the speed of the spin coater is adjusted to 1800 rpm for 8 seconds, and the PEODT:PSS solution is added dropwise during this process, then changed to 4800 rpm for 20 seconds, and taken out at a temperature of 115 degrees Celsius. Heated on the heating plate for 20 minutes; then spin-coated PbI 2 - tBP precursor solution, PbI 2 The solution concentration is 1 mol / ml, tBP:PbI 2 The solution volume ratio is 1:50, the spin coating speed is 4300 rpm, and the spin coating time is 20 seconds. Take it out and heat it on a heating plate at a temperature of 65 degrees Celsius for 10 minutes; then spin coat CH with a concentration of 12 mg / ml. 3 NH 3 1 isopropanol solution, rot...

Embodiment 3

[0053] The etched ITO conductive glass was cleaned with acetone, deionized water and absolute ethanol for 15 minutes respectively, blown dry with nitrogen, and then treated in an ultraviolet ozone atmosphere for 15 minutes; dynamic spin-coating PEODT:PSS solution. The dynamic spin coating process is as follows: the speed of the spin coater is adjusted to 2200 rpm for 12 seconds, and the PEODT:PSS solution is added dropwise during this process, and then changed to 5200 rpm for 40 seconds, and taken out at a temperature of 125 degrees Celsius. Heated on the heating plate for 60 minutes; then spin-coated PbI 2 - tBP precursor solution, PbI 2 The solution concentration is 1.4 mol / ml, tBP:PbI 2 The solution volume ratio is 1:10, the spin coating speed is 4700 rpm, and the spin coating time is 40 seconds. Take it out and heat it on a heating plate at a temperature of 75 degrees Celsius for 20 minutes; then spin coat CH with a concentration of 12 mg / ml. 3 NH 3 1 isopropanol soluti...

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Abstract

The invention discloses a perovskite solar cell preparation method for enhancing humidity resistance stability and photoelectric performance. Firstly, PEDOT: PSS solution was spin-coated on the ITO conductive glass substrate. Prepare PbI2 solution, 4-tert-butylpyridine was added to the PbI2 solution, and the mixture was heated and stirred to obtain PbI2-tBP precursor solution, spin-coated on glasssubstrate to obtain porous and hydrophobic PbI2-tBP film; spin-coating CH3NH3I and PbI2-tBP to obtain CH3NH3PbI3-tBP functional layer; And then spin-coating a layer of PC61BM to prepare an electron transport layer; At last, a lay of silver thin film is evaporate on that solar cell device to make the solar cell device. As that process of the invention is simple and repeatable, raw materials are easy to obtain and the cost is controllable, the humidity resistance stability and the photoelectric performance of the prepare device are remarkably improved, and the practical application requirementsof the perovskite solar cell in the photovoltaic field are well met.

Description

technical field [0001] The invention relates to a method for preparing a perovskite solar cell device in the field of photovoltaics, in particular to a method for preparing a perovskite solar cell with enhanced humidity resistance stability and photoelectric performance. Background technique [0002] Today, with increasing global energy consumption and increasingly serious environmental pollution, solar energy has attracted much attention due to its huge potential and cleanliness. It is an inexhaustible green energy. Perovskite solar cells are a new type of photovoltaic device. Compared with traditional silicon solar cells, they can be prepared by solution method, which avoids high temperature and high vacuum process. The manufacturing process is simpler, and the performance and cost are more advantageous. It can be made into flexible devices. In recent years, its research progress has been very rapid, and its photoelectric conversion efficiency has repeatedly hit new highs....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/16H10K71/12H10K30/00Y02E10/549
Inventor 杜平凡邱琳琳陈暐翔熊杰宋立新
Owner ZHEJIANG SCI-TECH UNIV
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