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Semitransparent photoconversion device

A light conversion and device technology, applied in the manufacturing of semiconductor devices, optical components, semiconductor/solid-state devices, etc., can solve the problems of lack of thickness control of insulating layer, no direct effect of solar cell device performance, etc.

Active Publication Date: 2014-11-05
FUNDACIO INST DE CIENCIES FOT NIQUES +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lack of control over the thickness of the insulating layer means that the filter as a stand-alone device has no direct effect on the performance of the solar cell device

Method used

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  • Semitransparent photoconversion device
  • Semitransparent photoconversion device
  • Semitransparent photoconversion device

Examples

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Embodiment Construction

[0021] The light conversion device has a direct or reverse structure, including a first light-transmitting electrical contact covering a transparent substrate, a charge blocking layer covering the first light-transmitting electrical contact and located below an active organic photosensitive material, and a second layer covering the active organic photosensitive material. Two charge blocking layers, a second light-transmitting electrical contact covering the second charge blocking layer, and a multilayer structure covering the second light-transmitting electrical contact. Multilayer structures consist of more than two layers of dielectric materials. In such multilayer structures, the refractive index of each layer must be different from that of adjacent layers. The method of manufacturing a photovoltaic cell comprising said multilayer structure comprises one deposition step for each layer in said device. The fabrication of the entire device ends with the deposition of the last...

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Abstract

The main object of the present invention is to provide a semitransparent photo conversion device that enhances harvesting of visible sunlight. For this purpose, a semitransparent photovoltaic cell is provided with a multilayer structure (7) that can be used to change the color hue appearance of the cell while guaranteeing a minimum change in the light absorption capability. The photo conversion device has a direct or inverted architecture that comprises a first light transmissive electrical contact (2) overlaying a transparent substrate (1), a charge blocking layer (3) overlying the first light transmissive electrical contact (2) and underlying the active organic photosensitive material (4), a second charge blocking layer (5) overlying the active organic photosensitive material (4), a second light transmissive electrical contact (6) overlying the second charge blocking layer (5), and a multilayer structure (7) overlying the second light transmissive electrical contact (6). The multilayer structure (7) is composed of two or more layers of light non-absorbing dielectric materials and two adjacent layers in the multilayer structure always have different refractive indexes.

Description

technical field [0001] The present invention relates to light conversion devices, such as photovoltaic cells or photodetectors. More particularly, the present invention relates to light-transmitting hierarchical photonic structures that enhance light collection and tune the color of transparent optoelectronic devices. Background technique [0002] The integration of photovoltaic energy in buildings is the most important means to reduce building light emission. Translucent cells offer a high degree of integrability, they can be incorporated in buildings with windows, curtain walls or double skin facades, visually to the building users as well as to the building's Appearance undergoes extremely minor changes. When considering semitransparent optoelectronics, there are four important characteristics: collection of photons invisible to the human eye, maximum transparency to visible light, device lifetime, and aesthetics of the walls of buildings integrating the optoelectronics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46
CPCH01L51/4213H01L51/447G02B5/285H01L51/441H01L51/4273H01L51/442G02B1/115H10K30/353H10K30/87H10K30/81H10K30/82H10K30/50Y02E10/549G02B1/116H10K30/10
Inventor 乔迪·马托雷利佩纳拉斐尔·安德烈斯·贝坦库尔洛佩拉巴勃罗·罗梅罗戈麦斯阿尔贝托·马丁内斯奥特罗
Owner FUNDACIO INST DE CIENCIES FOT NIQUES
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