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A micro-power electronic product integrating organic photovoltaic cells

A technology of organic photovoltaic cells and electronic products, applied in photovoltaic power generation, battery circuit devices, current collectors, etc., can solve problems such as the decline of photoelectric conversion efficiency, and achieve the effect of excellent photoelectric conversion efficiency

Active Publication Date: 2022-03-01
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the silicon cell works in an indoor light environment, the photoelectric conversion efficiency will drop significantly (Energies 2014, 7, 1500-1516; Appl.Energy, 2017, 191, 10-21)

Method used

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  • A micro-power electronic product integrating organic photovoltaic cells
  • A micro-power electronic product integrating organic photovoltaic cells
  • A micro-power electronic product integrating organic photovoltaic cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1, based on organic photovoltaic device

[0052] This example uses the PBDB-TF / IO-4Cl (mass ratio 1:1.5) system to prepare organic photovoltaic cells according to the general processing technology (the device structure is ITO / PEDOT:PSS / PBDB-TF:IO-4Cl / PFN-Br / Al), wherein, the structural formula of PBDB-TF (n is 20 in the formula) and IO-4Cl is as Figure 7 shown.

[0053] device is filled with N 2 The solar simulator was used in the glove box to test, and the current density-voltage curve of the organic photovoltaic cell is shown in Figure 8 . The photoelectric conversion efficiency is 9.64%, the corresponding voltage is 1.24V, and the current is 11.6mA / cm 2 , the fill factor is 0.670. filled with N 2 A 2700K color temperature LED lamp was used in the glove box for testing. Under 500lux, the current density-voltage curve after the test is shown in Figure 9 . Among them, the open circuit voltage is 1.05V, and the short circuit current is 46.2uA / cm ...

Embodiment 2

[0054] Embodiment 2, based on organic photovoltaic devices

[0055] This example uses the PBDB-TF / ITCC (mass ratio 1:1) system to prepare organic photovoltaic cells according to the general processing technology, wherein, the structural formula of PBDB-TF (where n is 20) and ITCC is as follows Figure 7 shown.

[0056] device is filled with N 2 The solar simulator was used in the glove box to test, and the current density-voltage curve of the organic photovoltaic cell is shown in Figure 11 . The photoelectric conversion efficiency is 10.3%, the corresponding voltage is 1.10V, and the current is 14.5mA / cm 2 , the fill factor is 0.643. filled with N 2 A 2700K color temperature LED lamp was used in the glove box for testing. Under 500lux, the current density-voltage curve after the test is shown in Figure 12 . Among them, the open circuit voltage is 0.948V, and the short circuit current is 47.8uA / cm 2 , the fill factor is 0.706, and the photoelectric conversion efficie...

Embodiment 3

[0057] Embodiment 3, based on organic photovoltaic device

[0058] This example uses the PBDB-TF / IT-4F (mass ratio 1:1) system to prepare organic photovoltaic cells according to the general processing technology, wherein, the structural formula of PBDB-TF (where n is 20) and IT-4F is as follows Figure 7 shown.

[0059] device is filled with N 2 The solar simulator was used in the glove box to test, and the current density-voltage curve of the organic photovoltaic cell is shown in Figure 13 . The photoelectric conversion efficiency is 12.2%, the corresponding voltage is 0.872V, and the current is 20.4mA / cm 2 , the fill factor is 0.687. filled with N 2 A 2700K color temperature LED lamp was used in the glove box for testing. Under 500lux, the current density-voltage curve after the test is shown in Figure 14 . Among them, the open circuit voltage is 0.692V, and the short circuit current is 56.6uA / cm 2 , the fill factor is 0.756, and the photoelectric conversion effic...

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Abstract

The invention discloses a micro-power consumption electronic product integrated with an organic photovoltaic cell. The battery of the micro-power electronic product is an organic photovoltaic cell; the micro-power electronic product is a calculator, an electronic clock, a timer, an electronic tag or a wireless sensor node. The invention proposes that organic photovoltaics exhibit excellent photoelectric conversion efficiency under the radiation intensity of indoor light (usually 50-1000 lux), so organic photovoltaic cells are firstly applied to drive micro-power consumption electronic products under indoor light, thereby realizing indoor light Drive microelectronics with higher photoelectric conversion efficiency in the environment. The present invention uses organic photovoltaic cells, compared with commercially produced solar cells (such as silicon crystal cells) in the market, it can achieve a photoelectric conversion efficiency of more than 20% in an indoor light environment, up to 24.7%.

Description

technical field [0001] The invention relates to the application of organic photovoltaic cells, in particular to a micro-power consumption electronic product integrating organic photovoltaic cells. Background technique [0002] At present, the power of widely used micro-power consumption electronic products such as calculators, electronic watches, and timers is in the range of microwatts to milliwatts. They are primarily powered by dry cells or rechargeable lithium-ion batteries. The power and life of the battery are important limiting factors in the use of micro-power electronic products. In addition, the energy storage density, size and quality of batteries are also challenges for the lightweight of electronic products. Obtaining renewable energy from the environment in which the product is used will effectively solve the above problems. Since these micro-power consumption electronic products mainly work in an indoor environment, photovoltaic cells can convert indoor lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/46H02J7/00
CPCH02J7/00H10K85/10H10K85/211H10K85/60H10K30/00Y02E10/549
Inventor 侯剑辉崔勇姚惠峰
Owner INST OF CHEM CHINESE ACAD OF SCI
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