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Solar cell device and preparation method thereof

A technology for solar cells and devices, applied in the fields of electric solid state devices, semiconductor/solid state device manufacturing, electrical components, etc., can solve problems such as low energy conversion efficiency of solar cells

Inactive Publication Date: 2014-05-28
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, conventional solar cells have low energy conversion efficiencies

Method used

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  • Solar cell device and preparation method thereof
  • Solar cell device and preparation method thereof
  • Solar cell device and preparation method thereof

Examples

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preparation example Construction

[0036] Please also see figure 2 , the preparation method of the solar cell device 100 of an embodiment, it comprises the following steps:

[0037] Step S110 , sequentially spin coating the hole buffer layer 20 and the first active layer 30 on the surface of the anode 10 .

[0038] The anode 10 is indium tin oxide glass (ITO), fluorine doped tin oxide glass (FTO), aluminum doped zinc oxide glass (AZO) or indium doped zinc oxide glass (IZO).

[0039] In this embodiment, the pretreatment of the anode 10 includes removing organic pollutants on the surface of the anode 10 and performing oxygen ion treatment on the anode 10 . The anode 10 is ultrasonically cleaned with detergent, deionized water, acetone, ethanol, and isopropanone for 15 minutes to remove organic pollutants on the surface of the substrate 10; the anode 10 is treated with oxygen ion for 5 minutes to 15 minutes, and the power is 10 ~50W.

[0040] The hole buffer layer 20 is prepared by spin-coating a solution cont...

Embodiment 1

[0057] The structure prepared in this example is ITO / PEDOT:PSS / P3HT:PC 61 BM / LiF:PC 61 BM / PEDOT:PSS:Re 2 o 7 / P3HT:PC 61 BM / LiF / Al solar cell devices.

[0058] First, carry out photolithography treatment on ITO, cut it into the required size, and then use detergent, deionized water, acetone, ethanol, and isopropanol to sonicate for 15 minutes each to remove organic pollutants on the glass surface; clean the conductive substrate Oxygen plasma treatment is carried out, the treatment time is 5-15min, and the power is 10-50W; the hole buffer layer is prepared by spin coating, the mass ratio of PEDOT:PSS is 3:1, and the mass fraction of PEDOT:PSS is 4%. The rotation speed is 5000rpm, the time is 15s, after spin coating, heat at 200°C for 30min, and the thickness is 40nm; spin coat the first active layer, the first active layer is composed of P3HT:PC with a concentration of 12mg / ml 61 BM solution is spin-coated, the solvent is chlorobenzene, P3HT and PC 61 The mass ratio of BM...

Embodiment 2

[0065] The structure prepared in this example is IZO / PEDOT:PSS / P3HT:PC 61 BM / CsN 3 :C 60 / PEDOT:PSS:ReO 2 / P3HT:PC 61 BM / Cs 2 CO 3 / Au solar cell devices.

[0066] First, IZO is subjected to photolithography treatment, cut into the required size, and then ultrasonicated with detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes each to remove organic pollutants on the glass surface; after cleaning, clean the conductive substrate Oxygen plasma treatment is carried out, the treatment time is 5-15min, and the power is 10-50W; the hole buffer layer is prepared by spin coating, the mass ratio of PEDOT:PSS is 2:1, and the mass fraction of PEDOT:PSS is 5%. The rotation speed is 6000rpm, the time is 10s, after spin coating, heat at 100°C for 60min, and the thickness is 20nm; spin coat the first active layer, the first active layer is composed of P3HT:PC with a concentration of 8mg / ml 61 BM solution is spin-coated, the solvent is chlorobenzene, P3HT and PC...

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Abstract

The invention provides a solar cell device comprising an anode, a hole buffer layer, a first active layer, a first intermediate layer, a second intermediate layer, a second active layer, an electron buffer layer and a cathode which are laminated in turn. The first active layer is mixture of poly 3-hexyl thiophene and 6, 6-phenyl-C61-methyl butyrate. The material of the first intermediate layer comprises electron buffer materials and fullerene derivatives. The electron buffer materials are selected from at least one of cesium azide, lithium fluoride, lithium carbonate and cesium carbonate. The fullerene derivatives are selected from at least one of C60, C70, 6, 6-phenyl-C61-butyl acid methyl esters and 6, 6-phenyl-C71-butyl acid methyl esters. The material of the second intermediate layer comprises oxides of rhenium and hole buffer materials. The oxides of rhenium are selected from at least one of rhenium dioxide, rhenium heptoxide, rhenium trioxide and oxide rhenium. The solar cell device is relatively high in energy conversion efficiency. Besides, the invention also provides a preparation method of the solar cell device.

Description

【Technical field】 [0001] The invention relates to a solar battery device and a preparation method thereof. 【Background technique】 [0002] Solar cell devices have been widely used due to their advantages of cheapness, cleanliness, and renewability. The currently commonly used solar cell device structure includes an anode, a hole buffer layer, a first active layer, an electron buffer layer and a cathode stacked in sequence. After the excitons in the first active layer are separated to generate holes and electrons, the holes reach the anode, and the electrons reach the cathode, where they are collected by the electrodes to form effective energy conversion. Currently, conventional solar cells have low energy conversion efficiencies. 【Content of invention】 [0003] Based on this, it is necessary to provide a solar cell device with high energy conversion efficiency and a preparation method thereof. [0004] A solar cell device, comprising an anode, a hole buffer layer, a fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/211H10K85/1135H10K30/10H10K2102/00Y02E10/549
Inventor 周明杰王平黄辉陈吉星
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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