journal article·2025-04-11

Surface Configuration Enables PbSe Quantum Dot Solar Cells with Efficiency beyond 12%

Muhammad Irfan Ullah, Xiaobo Ding, Yang Liu, Yuquan Zou, Qura Tul Ain, Lin Yuan, Haotian Gao, Yu Yin, Ihsan Ullah, Guozheng Shi, Xiangqiang Pan, Zeke Liu, Wanli Ma

ACS Energy Letters· Volume 10· Issue 4
Publisher page

Abstract

Lead selenide (PbSe) quantum dots (QDs) are promising materials for optoelectronic devices owing to their strong confinement and high multiple exciton generation. Nevertheless, their full potential remains unrealized, hampered by the challenges of complex synthesis and insufficient passivation. Here, we have devised an optimized surface configuration strategy based on a directly synthesized semiconductive QD ink system. By integrating tailored passivation through a bifunctional molecule, we significantly improved both the optoelectronic properties and the colloidal stability of the QD inks. Consequently, the photovoltaic devices attained a power conversion efficiency (PCE) of 12.07%, marking the highest reported value among all PbSe QD solar cells. Additionally, the QD inks exhibit colloidal stability for over two months, demonstrating outstanding long-term performance. These results emphasize the efficacy of this method in producing high-performance, enduring PbSe QDs for optoelectronic applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon-Based Functional Materials and Devices

Soochow University

Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science

Institute of Computing Science and Technology

Guangzhou University

Jiangsu Key Laboratory of Advanced Negative Carbon Technologies

Funding

Suzhou Key Laboratory of Functional Nano and Soft Materials · Collaborative Innovation Center of Suzhou Nano Science and Technology · National Key Research and Development Program of China · Major Basic Research Project of the Natural Science Foundation of the Jiangsu Higher Education Institutions · National Natural Science Foundation of China · Higher Education Discipline Innovation Project · Gusu Innovation and Entrepreneurship Leading Talent Program · Science and Technology Innovation of Jiangsu province

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