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Photoelectric conversion module, electronic device, and power supply module

A photoelectric conversion module and photoelectric conversion layer technology, which is applied in photovoltaic power generation, electro-solid devices, circuits, etc., can solve the problems of photoelectric conversion efficiency difference, difficulty in using wide illumination area, etc., and achieve the effect of suppressing photoelectric conversion efficiency difference.

Pending Publication Date: 2022-05-31
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in a photoelectric conversion module having a plurality of photoelectric conversion elements electrically connected, there is a problem that a difference in photoelectric conversion efficiency occurs between a low illuminance environment and a high illuminance environment, making it difficult to use in a wide illuminance area.

Method used

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  • Photoelectric conversion module, electronic device, and power supply module
  • Photoelectric conversion module, electronic device, and power supply module
  • Photoelectric conversion module, electronic device, and power supply module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0292]

[0293] -Substrate with first electrode-

[0294] First, purchase ITO, Ag, and ITO (these are also referred to as IAI) from Geomatec to form films of polyethylene terephthalate (PET ) Substrate (60mm×60mm). Next, in the IAI corresponding to the first electrode, division portions having an etching width of 20 μm were formed by photolithography. The prepared substrate with the first electrode is shown in Figure 18 . exist Figure 18 In , hatched parts represent IAI, and white parts represent etched parts.

[0295] -Formation of electron transport layer-

[0296] Next, a zinc oxide nanoparticle solution (manufactured by Aldrich, with an average particle diameter of 12 nm) was spin-coated at 3000 rpm on a polyethylene terephthalate (PET) substrate (15Ω / □) with a gas barrier film made by IAI. and dried at 80° C. for 10 minutes to form an electron transport layer with an average thickness of 30 nm.

[0297] -Formation of photoelectric conversion layer-

[0298] 10...

Embodiment 2

[0309]

[0310] In the preparation of the photoelectric conversion module of Example 1, the photoelectric conversion layer coating liquid A was changed to the following photoelectric conversion layer coating liquid B, and the average thickness of the photoelectric conversion layer was changed to 90 nm, and the other methods were the same as in Example 1. Similarly, a photoelectric conversion module was fabricated.

[0311] In addition, as in Example 1, the energy level of the highest occupied molecular orbital (HOMO) was measured and the characteristics of the solar cell were evaluated. The highest occupied molecular orbital (HOMO) energy level is 5.1eV. Table 1 shows the results of solar cell characteristic evaluation.

[0312] -Photoelectric conversion layer coating solution B-

[0313] 10 mg of PDPP3T (manufactured by Ossila, weight average molecular weight Mw=66000) and 10 mg of PC61BM (manufactured by Aldrich) were dissolved in 1 mL of chloroform containing 3 volume %...

Embodiment 3

[0315]

[0316] In the fabrication of the photoelectric conversion module of Example 1, a photoelectric conversion module was produced in the same manner as in Example 1 except that the photoelectric conversion layer coating solution A was changed to the following photoelectric conversion layer coating solution C.

[0317] In addition, as in Example 1, the energy level of the highest occupied molecular orbital (HOMO) was measured and the characteristics of the solar cell were evaluated. The highest occupied molecular orbital (HOMO) energy level is 5.2eV. Table 1 shows the results of solar cell characteristic evaluation.

[0318] -Photoelectric conversion layer coating solution C-

[0319] 15 mg of Exemplary Compound 1 shown below (number average molecular weight Mn=1554) and 10 mg of Exemplified Compound 2 shown below were dissolved in 1 mL of chloroform to obtain a photoelectric conversion layer coating solution C.

[0320] [chemical formula 18]

[0321]

[0322] [che...

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Abstract

The invention relates to a photoelectric conversion module, an electronic device, and a power supply module. The problem addressed by the present invention is that in a photoelectric conversion module, a difference in photoelectric conversion efficiency occurs in a low-illumination environment and a high-illumination environment, and the photoelectric conversion module is difficult to use in a wide-illumination region. This photoelectric conversion module has a plurality of electrically connected photoelectric conversion elements, and each photoelectric conversion element has a first electrode, a photoelectric conversion layer, and a second electrode in this order. The photoelectric conversion module includes a first photoelectric conversion element, a second photoelectric conversion element, and a connection portion connecting the first photoelectric conversion element and the second photoelectric conversion element in series. A first electrode or a second electrode constituting the first photoelectric conversion element has a contact region that is in contact with the connection part, and a non-contact region that is not in contact with the connection part and is located on the first photoelectric conversion element side with respect to the connection part. In the non-contact region, the length of the first photoelectric conversion element and the second photoelectric conversion element in the connection direction is 30 mm or less.

Description

technical field [0001] The invention relates to a photoelectric conversion module, an electronic instrument and a power supply module. Background technique [0002] In recent years, people are expecting the realization of an IoT (Internet of Things) society where everything is connected and integrated control is possible. In order to realize such an IoT society, it is necessary to install a large number of sensors on various objects to acquire data, but a power source to drive a large number of sensors is required. It is impractical to connect a large number of sensors and use storage batteries, and due to the growing social demand to reduce environmental loads, environmental power generation elements are expected to provide electricity. [0003] Among them, a photoelectric conversion element has attracted attention as an element capable of generating electricity anywhere as long as there is light. In particular, flexible photoelectric conversion elements have been expecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L27/30H01L25/18
CPCH01L25/18H10K30/57H10K85/113H10K30/15H10K30/152H10K39/10H10K85/211H01L31/0468H01L31/0224H10K50/16
Inventor 新居辽太伊东卓哉平野智也
Owner RICOH KK