Plane perovskite solar cell based on FTO/c-TiO2 cathode and manufacturing method of plane perovskite solar cell

A solar cell and perovskite technology, applied in semiconductor/solid-state device manufacturing, circuits, photovoltaic power generation, etc., can solve the problems of incompatibility, complex process, high cost, etc., and achieve large-area thin film preparation, simplified process, low cost effect

Inactive Publication Date: 2015-04-22
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

c-TiO 2 Thin films can be prepared by a variety of methods, such as radio frequency magnetron sputtering, atomic layer deposition, pulsed laser deposition, chemical vapor deposition and sol-gel method, etc., but most of these processes are expensive or complicated, so they are not compatible with large Area thin film preparation is not compatible

Method used

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  • Plane perovskite solar cell based on FTO/c-TiO2 cathode and manufacturing method of plane perovskite solar cell
  • Plane perovskite solar cell based on FTO/c-TiO2 cathode and manufacturing method of plane perovskite solar cell

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Example 1, making dense titanium dioxide c-TiO 2 A solar cell with a thickness of 70nm.

[0032] Step 1, cleaning the substrate substrate.

[0033] The 1.9mm glass substrate with fluorine-doped tin oxide FTO was ultrasonically cleaned in deionized water, acetone, absolute ethanol and deionized water for 10 min in turn, and dried with a nitrogen gun after cleaning.

[0034] Step 2, Deposit c-TiO 2 electron transport layer.

[0035] 2a) Preparation of precursor solution:

[0036] First take 21.464mL of 75% mass fraction of diisopropyl diacetylacetonate titanate TiAc solution, and add 18.536mL of 1-butanol to the solution to dilute, and sonicate the diluted solution for 10min to obtain a concentration of 0.15 M / L c-TiO 2 Precursor solution;

[0037]Then take 2.928mL of 75% mass fraction of diisopropyl diacetylacetonate titanate TiAc solution, and add 17.072mL of 1-butanol to the solution for dilution, and ultrasonically treat the diluted solution for 10min to obtain ...

Embodiment 2

[0055] Example 2, making dense titanium dioxide c-TiO 2 A solar cell with a thickness of 85nm.

[0056] Step 1, cleaning the substrate substrate.

[0057] The 1.9 mm glass substrate containing fluorine-doped tin oxide FTO was ultrasonically cleaned in deionized water, acetone, absolute ethanol and deionized water for 15 minutes, and dried with a nitrogen gun after cleaning.

[0058] Step 2, depositing c-TiO 2 electron transport layer.

[0059] 2.1) Preparation of precursor solution:

[0060] The concrete realization of this step is identical with step 2a) of embodiment 1;

[0061] 2.2) Spin coating c-TiO 2 Precursor solution:

[0062] Spin-coat 0.15M / L c-TiO for the first time on the substrate after step 1 2 For the precursor solution, the spin coating speed is 6000r / min, the time is 60s, and annealed in an oven at a temperature of 125°C for 5min;

[0063] Then spin-coated 0.15M / L c-TiO 2 The second spin-coating of 0.3M / L c-TiO on the substrate of the precursor soluti...

Embodiment 3

[0078] Example 3, making dense titanium dioxide c-TiO 2 A solar cell with a thickness of 100nm.

[0079] Step A, cleaning the substrate substrate.

[0080] The 1.9 mm glass substrate containing fluorine-doped tin oxide FTO was ultrasonically cleaned in deionized water, acetone, absolute ethanol and deionized water for 20 minutes, and dried with a nitrogen gun after cleaning.

[0081] Step B, depositing c-TiO 2 electron transport layer.

[0082] B1) Preparation of precursor solution:

[0083] The concrete realization of this step is identical with the step 2a) of embodiment one;

[0084] B2) Spin-coating c-TiO 2 Precursor solution:

[0085] B21) Spin-coat 0.15M / L c-TiO for the first time with 6000r / min and 60s spin-coating time on the substrate after step A 2 Precursor solution, and annealed in an oven at a temperature of 125 ° C for 5 min;

[0086] B22) After spin-coating 0.15M / L c-TiO 2 On the substrate of the precursor solution, spin-coat 0.3M / L c-TiO for the second t...

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Abstract

The invention discloses a plane perovskite solar cell based on an FTO / c-TiO2 cathode and a manufacturing method of the plane perovskite solar cell. The problems that an existing perovskite solar cell is not matched in energy level and poor in interfacial characteristic are mainly solved. The plane perovskite solar cell comprises a liner (1), the cathode (2), an electron transmission layer (3), an optical active layer (4), a hole transmission layer (5) and an anode (6) from bottom to top, wherein the cathode (2) is made of fluorine-doped tin oxide (FTO) and is used for collecting electrons, and the electron transmission layer is made of compact titanium dioxide c-TiO2 and is used for modifying an interface, blocking holes and transmitting electrons. The electron transmission layer made of the c-TiO2 is manufactured through a spin coating precursor solution, and therefore the work function of the cathode made of the FTO is reduced, the energy level matching between the FTO and CH3NH3PbI3 is achieved, the interface characteristic is improved, and the performance of the plane-structure perovskite solar cell is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of microelectronic devices, in particular to a solar cell, in particular to a perovskite solar cell and a preparation method thereof, which can be used for photoelectric conversion. Background technique [0002] In today's society, the rapid economic development has brought serious problems such as energy crisis and global warming. The development and utilization of renewable clean energy has attracted widespread attention from all over the world. Different from traditional energy sources such as coal, oil, and natural gas, solar energy is a green, clean, and renewable energy source that is inexhaustible and has the potential to become an important part of future energy supply. As a photoelectric conversion device, solar cells have received more and more attention in their research and application. Compared with expensive silicon-based solar cells, perovskite solar cells use organic-inorganic perovskite mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K30/81H10K30/00Y02E10/549Y02P70/50
Inventor 唐诗张春福张进成郝跃陈大正衡婷
Owner XIDIAN UNIV
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