Compound, organic thin film, photoelectric conversion element, imaging element, photosensor, and solid-state imaging device
Novel compounds with specific energy levels and substituent groups address the limitations of conventional blocking layers, reducing dark current and enhancing spectral selectivity in photoelectric conversion elements.
WO2026141331A1 Publication Date: 2026-07-02MITSUBISHI GAS CHEM CO INC
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Patent Information
- Application Number
- PCT/JP2025/044921
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-12-26
- Filing Date
- 2025-12-23
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Conventional hole blocking and electron blocking layers in photoelectric conversion elements fail to adequately suppress leakage current and achieve high spectral selectivity, necessitating the development of novel compounds for improved performance.
Method used
Development of novel compounds represented by specific chemical formulas with tailored energy levels and substituent groups to enhance electron transport and blocking capabilities, integrated into organic thin films and photoelectric conversion elements.
Benefits of technology
The novel compounds effectively reduce dark current leakage and improve wavelength selectivity, leading to enhanced external quantum efficiency and manufacturability of photoelectric conversion elements.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided is a compound represented by general formula (1). In formula (1), X1 and X2 are each independently selected from the group consisting of a methine group and a nitrogen atom, n is an integer of 0-3, R1 and R2 are each independently a hydrogen atom, a halogen atom, or a monovalent organic group, R1 and / or R2 is a monovalent organic group having a Hammett substituent constant σp of 0.50 or greater, and the adjacent R1 and R2 moieties may be a part of a fused ring, the fused ring optionally including one or more atoms other than carbon.
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