Title : ( Enhanced optical properties of luminescent solar concentrators via metal ion doping in carbon dots )
Authors: Kambiz Hosseinpanahi , M. Hossein Abbaspour-Fard , Elaheh Kafshdare Goharshadi , Mahmood Reza Golzarian , Setayesh Sajadi , Alberto Vomiero ,
Abstract
Luminescent solar concentrators (LSCs) utilizing carbon dots (CDs) have emerged as promising solutions for transparent photovoltaic applications due to their high transparency and efficient light-to-electricity conversion. This study investigates the synthesis and optical enhancement of CDs doped with transition metal ions—cobalt, nickel, copper, and zinc—to improve LSC performance. Using a microwave synthesis method, we produced CDs with a high quantum yield of 81%, a substantial Stokes shift of 0.71 eV, and excellent stability. Doping CDs with metal ions at molar concentrations of 1%, 3%, and 5% revealed that 1 mol% copper-doped CDs exhibited superior optical properties, enhancing light absorption and emission through effective metal-ion interactions. LSCs, fabricated with dimensions of 15 × 15 × 0.6 cm3 using glass and PMMA waveguides, achieved notable photovoltaic performance with an optical efficiency of 3.99% and a photoconversion efficiency (PCE) of 1.45% for PMMA-based devices. The introduction of copper at 1% concentration resulted in a 22% increase in both optical efficiency and PCE. Stability assessments over 90 days indicated minimal performance degradation, underscoring the robustness of the synthesized materials. This research highlights the potential of metal-doped CDs to optimize LSC technology, facilitating integration into urban environments and advancing the commercialization of transparent photovoltaic systems.
Keywords
, Luminescent, solar concentrators (LSCs), carbon dots, agri-voltaic, doping@article{paperid:1102637,
author = {Hosseinpanahi, Kambiz and Abbaspour-Fard, M. Hossein and Kafshdare Goharshadi, Elaheh and محمود رضا گلزاریان and ستایش سجادی and البرتو وومیرو},
title = {Enhanced optical properties of luminescent solar concentrators via metal ion doping in carbon dots},
journal = {Journal of Materials Chemistry A},
year = {2025},
volume = {13},
number = {17},
month = {January},
issn = {2050-7488},
pages = {12639--12649},
numpages = {10},
keywords = {Luminescent; solar concentrators (LSCs); carbon dots; agri-voltaic; doping},
}
%0 Journal Article
%T Enhanced optical properties of luminescent solar concentrators via metal ion doping in carbon dots
%A Hosseinpanahi, Kambiz
%A Abbaspour-Fard, M. Hossein
%A Kafshdare Goharshadi, Elaheh
%A محمود رضا گلزاریان
%A ستایش سجادی
%A البرتو وومیرو
%J Journal of Materials Chemistry A
%@ 2050-7488
%D 2025