Hole transport material, preparation method thereof, and perovskite solar cell and preparation method thereof

CN120058690BActive Publication Date: 2026-07-24JINKO SOLAR (SHANGRAO) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINKO SOLAR (SHANGRAO) CO LTD
Filing Date
2025-02-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing small molecule hole transport materials (HTMs) are morphologically unstable and have low tolerance in perovskite solar cells, requiring dopants, which hinders the large-scale commercialization of perovskite solar cells.

Method used

Hole transport materials SMe-Ac-1, SMe-Ac-2, and SMe-Ac-3 containing thiophene groups were designed and synthesized. Acridine groups were introduced into them through a simple preparation method. The preparation process is simple, the raw materials are inexpensive, and no dopants are required. They are suitable for inverted quasi-two-dimensional perovskite solar cells.

Benefits of technology

It improves the mobility and thermal stability of hole transport materials, enhances the interfacial interaction with perovskites, maintains the stability of materials, is suitable for industrial production, and has good application prospects.

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Abstract

The application relates to the technical field of perovskite batteries, and provides a hole transport material, a preparation method thereof, a perovskite solar cell and a preparation method thereof, and at least the stability of a small molecule HTM can be maintained without doping any additive. The structure of the hole transport material is shown in formula I: wherein R is selected from one of the following structural formulae II to IV,
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