@article{Kaya2026, 
author = {Tarik Safa Kaya and Ugur Berkay Caliskan and Parsa Kaviani and Asim Onal and Eren Tekinay and Guncem Ozgun Eren and Hande Gunduz and Hadi Jahangiri and Mehmet Silme and Kadriye Kutlay and Ugur Unal and Sedat Nizamoglu},
title = {Efficient short-wave infrared emission by copper-doped InP/ZnSe/ZnS quantum dots and their application for luminescent solar concentrators},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {1},
pages = {94908234},
keywords = {InP quantum dots, Cu-doping, short-wave infrared, luminescent solar concentrator, optical efficiency},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94908234},
doi = {10.26599/NR.2025.94908234},
abstract = {InP quantum dots (QDs) have been a major building block of modern display technology due to their high photoluminescence quantum yield (PLQY) in the visible spectrum, superior stability, and eco-friendly composition. However, their applications at short-wave infrared (SWIR) have been hindered by their low efficiency. Here, we report the synthesis of efficient and SWIR-emitting InP QDs by precisely controlling the InP core nucleation using a low-cost ammonia phosphorus precursor, while avoiding size-limiting ZnCl2 for effective copper doping. Subsequent epitaxial growth of a lattice-matched ZnSe/ZnS multishell enhanced the QD sphericity and surface smoothness and yielded a record PLQY of 66% with an emission peak at 960 nm. When QDs were integrated as the high-refractive-index luminescent core of a liquid waveguide-based luminescent solar concentrator (LSC), the device achieved an optical efficiency of 7.36%. This performance arises from their high PLQY, spectral alignment with the responsivity peak of silicon solar cells, and the optimized core/cladding waveguide structure. These results highlight the potential of InP QDs as a promising nanomaterial for SWIR emission and applications.}
}