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Methods of constructing photosensitive devices

A photosensitive device and structure technology, applied in photovoltaic power generation, semiconductor devices, electrical components, etc.

Active Publication Date: 2017-12-01
ELECTRICITE DE FRANCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this approach is that it requires intrinsic alignment to define the photolithographic pattern in place, taking into account the geometry of the photosensitive cell

Method used

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  • Methods of constructing photosensitive devices
  • Methods of constructing photosensitive devices
  • Methods of constructing photosensitive devices

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Embodiment Construction

[0060] Such as figure 1 As shown, the object of the present invention mainly relates to the construction of a light-sensitive system with a light-gathering effect. Such a system may, for example, be an array of devices, such as photovoltaic cells 1 , electrically connected via metal contacts 5 . Photovoltaic cells are designed to be smaller, reducing production costs and allowing the use of materials that provide higher energy efficiency. These photovoltaic cells 1 are mounted on their upper surface with lenses 4 forming a "secondary" optical system. Above these lenses, “primary” optics 104 focus the light rays onto lenses 4 . Due to their wider surface area, these primary light systems are used to collect a larger amount of light and focus it on the photovoltaic cell 1 . The secondary optical system 4 is located below the primary optical system 104, so that the acceptance angle of the bilevel lens system increases, which means that the photovoltaic cell 1 can collect more ...

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Abstract

The present invention relates to a method of constructing a photosensitive device, comprising: - a first preparation step of preparing on a substrate (3) at least one photosensitive first part (1), which is active in a certain wavelength range, said first part ( 1) Surrounded by a non-photosensitive second part (2), a material (8) covers the first part (1), which can be selectively disposed in the hydrophilic layer by an electrochemical process. The second part (2) comprises a hydrophobic material on the upper surface opposite the base layer, the method further comprising the step of: - on the upper surfaces of said first part (1) and second part (2), spraying a liquid comprising a transparent material, and - forming a condenser (4, 14) comprising said material over said first portion.

Description

technical field [0001] The invention relates to the field of optoelectronic devices equipped with concentrating systems. Background technique [0002] Technologies employing optoelectronic devices such as photodetectors, light emitting diodes (LEDs) or photovoltaics can benefit from using less material to manufacture the photosensitive portion through the use of light concentrating systems. [0003] Devices employing concentrating systems require less semiconductor material to generate a given amount of electrical power or illuminate a given area than devices that do not employ such a system. In the case of photovoltaic cells, the use of concentrating systems enables higher conversion efficiencies with lower cost light absorbing materials. [0004] Alignment of the light-collecting optics with the photosensitive device is difficult to achieve. Traditionally, this alignment involves imaging methods such as camera control, which is an expensive approach. [0005] Generally,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/054H01L31/0232H01L31/0216
CPCH01L31/02327H01L31/02161H01L31/02168H01L31/0543H01L31/18Y02E10/52
Inventor 姆艾里阿姆·佩雷金-弗朗索斯·古伊莱莫莱斯劳伦特·洛姆贝兹丹尼尔·林科特斯泰凡·科林金-卢克·佩劳阿德
Owner ELECTRICITE DE FRANCE