Near-Infrared Photoactive Semiconductor Quantum Dots for Solar Cells,Advanced Energy Materials

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Near-Infrared Photoactive Semiconductor Quantum Dots for Solar Cells
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2021-09-19 , DOI: 10.1002/aenm.202101923
Ru Zhou ₁ , Jun Xu ₂ , Paifeng Luo ₃ , Linhua Hu ₄ , Xu Pan ₄ , Jinzhang Xu ₁ , Yang Jiang ₃ , Lianzhou Wang ₅

Affiliation

Semiconductor quantum dots (QDs) are nanocrystals whose excitons are bound in 3D space. Owning to their remarkable quantum confinement effect, QDs exhibit a discontinuous electronic energy level structure similar to that of atoms, leading to novel physical, optical, and electrical properties for various optoelectronic device applications including solar cells. Near-infrared photoactive narrow bandgap (NBG) QDs can maximize the use of solar energy through the quantum size effect, offering a good opportunity for designing highly efficient wide-spectrum responsive solar cells. This review analyzes the recent research progress of NBG QDs as light absorbing materials in solar cells. The critical elaboration of the latest achievements both in material design and device optimization for NBG QD-based solar cells (QDSCs), including QD synthesis and film fabrication, design of device configuration, classification of NBG QDs and their photovoltaic performance, strategies for performance improvements is focused upon. The current challenges and perspectives for the further advance of NBG QDSCs are also discussed.

中文翻译：

用于太阳能电池的近红外光敏半导体量子点

半导体量子点 (QD) 是激子束缚在 3D 空间中的纳米晶体。由于其显着的量子限制效应，量子点表现出类似于原子的不连续电子能级结构，从而为包括太阳能电池在内的各种光电器件应用带来了新颖的物理、光学和电学特性。近红外光敏窄带隙 (NBG) 量子点可以通过量子尺寸效应最大限度地利用太阳能，为设计高效的广谱响应太阳能电池提供了很好的机会。本综述分析了NBG QDs作为太阳能电池吸光材料的最新研究进展。对基于 NBG QD 的太阳能电池 (QDSC) 在材料设计和器件优化方面的最新成果进行了批判性阐述，包括 QD 合成和薄膜制造、器件配置设计、NBG QD 的分类及其光伏性能，重点关注性能改进策略。还讨论了当前 NBG QDSC 进一步发展的挑战和前景。

更新日期：2021-10-27

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