Near-Infrared Active Lead Chalcogenide Quantum Dots: Preparation, Post-Synthesis Ligand Exchange, and Applications in Solar Cells

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Shrestha, Aabhash
Batmunkh, Munkhbayar
Tricoli, Antonio
Qiao, Shi Zhang
Dai, Sheng
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2019
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Abstract

Quantum dots (QDs) of lead chalcogenides (e.g. PbS, PbSe, and PbTe) are attractive near-infrared (NIR) active materials that show great potential in a wide range of applications, such as, photovoltaics (PV), optoelectronics, sensors, and bio-electronics. The surface ligand plays an essential role in the production of QDs, post-synthesis modification, and their integration to practical applications. Therefore, it is critically important that the influence of surface ligands on the synthesis and properties of QDs is well understood for their applications in various devices. In this Review we elaborate the application of colloidal synthesis techniques for the preparation of lead chalcogenide based QDs. We specifically focus on the influence of surface ligands on the synthesis of QDs and their solution-phase ligand exchange. Given the importance of lead chalcogenide QDs as potential light harvesters, we also pay particular attention to the current progress of these QDs in photovoltaic applications.

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Angewandte Chemie, International Edition

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58

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16

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Chemical sciences

Science & Technology

Physical Sciences

Chemistry, Multidisciplinary

lead chalcogenide

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Shrestha, A; Batmunkh, M; Tricoli, A; Qiao, SZ; Dai, S, Near-Infrared Active Lead Chalcogenide Quantum Dots: Preparation, Post-Synthesis Ligand Exchange, and Applications in Solar Cells, Angewandte Chemie, International Edition, 2019, 58 (16), pp. 5202-5224

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