Photoelectric Conversion Element Compound Structure
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Solution Overview
Problem
Photoelectric conversion elements face challenges in achieving both excellent manufacturing suitability and high photoelectric conversion efficiency, particularly when the vapor deposition rate of the photoelectric conversion film is increased, as seen with compounds used in previous studies like WO2021/221108A.
Innovation Solution
A photoelectric conversion element is designed with a specific compound having a predetermined structure, incorporated into a film configuration that includes a conductive film, a photoelectric conversion film, and a transparent conductive film, where the photoelectric conversion film contains a compound represented by Formula (1), which enhances both manufacturing suitability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vapor deposition rate during the formation of the photoelectric conversion film is increased to improve manufacturing suitability, then the manufacturing efficiency is improved, but the photoelectric conversion efficiency deteriorates
Solution Approach 1:
The patent applies parameter changes by modifying the molecular structure of the photoelectric conversion material (changing from conventional merocyanine dyes to specific compounds with predetermined structures as defined in Formula 1). This structural parameter change enables the material to maintain high photoelectric conversion efficiency even when deposited at higher vapor deposition rates, thus resolving the contradiction between manufacturing efficiency and photoelectric conversion efficiency.
2Reliability
If a high photoelectric conversion efficiency is pursued, then the performance is improved, but the manufacturing suitability deteriorates
Solution Approach 1:
The patent changes the chemical structure parameters of the photoelectric conversion material to compounds with specific predetermined structures (Formula 1), which inherently provide both high photoelectric conversion efficiency and good manufacturing suitability. This allows the material to be deposited at higher rates without sacrificing performance.
Solution Approach 2:
The patent employs composite material design by creating a photoelectric conversion film with a specific composition ratio of the new compound (Formula 1) combined with other materials, achieving optimal balance between photoelectric conversion efficiency and manufacturing suitability through controlled material composition.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution results in a photoelectric conversion element with improved manufacturing suitability and photoelectric conversion efficiency, even at higher film formation rates, as demonstrated by the specific chemical structure of the compound used in the photoelectric conversion film.
Implementation Method 1
a photoelectric conversion element comprising in the following order, a conductive film, a photoelectric conversion film, and a transparent conductive film
Data Source
AI summary
An object of the present invention is to provide a photoelectric conversion element which has excellent manufacturing suitability and also has excellent photoelectric conversion efficiency, an imaging element, an optical sensor, and a compound. A photoelectric conversion element according to the present invention including in the following order, a conductive film, a photoelectric conversion film, and a transparent conductive film, in which the photoelectric conversion film contains a compound represented by Formula (1).