Zero-Dimensional Lead-Free Perovskite Single Crystals for High-Performance Photodetection
- 1School of Computer Science and Artificial Intelligence, Shanxi Normal University, Taiyuan 030031, China
- 2School of Physics and Electronic Engineering, Shanxi Normal University, Taiyuan 030031, China
Abstract
The rapid development of optoelectronic technologies has placed ever-increasing demands on high-performance photodetectors, as the intrinsic properties of the active materials fundamentally determine the detection limit and operational stability. Although organic–inorganic hybrid perovskites exhibit superior optoelectronic properties, lead-based perovskites suffer from the drawbacks of heavy-metal toxicity and poor structural stability, which severely limit their practical applications. Low-dimensional lead-free perovskite single crystals have therefore emerged as a promising material system, owing to their extremely low defect density, grain-boundary-free nature, and strong intrinsic stability. Here, high-quality 0D lead-free MA3Sb2I9 single crystals were grown via a seed-induced two-step crystallization method, and photodetectors based on these single crystals were fabricated. The resulting photodetector exhibits a high responsivity of 22.77 A/W, an external quantum efficiency (EQE) of 6971.92%, and a specific detectivity of 1.49 × 1012 Jones. Notably, stable photoresponse was maintained over ~450 on/off switching cycles, evidencing excellent operational repeatability and long-term stability. These results highlight the great potential of MA3Sb2I9 single crystals as a stable, lead-free candidates for high-performance photodetection.
Related
- Chiral Doping of Two-Dimensional Molecular Crystals for Circularly Polarized Photodetection
- High-Performance Chemiresistive Humidity Sensing and Quantum Isotopic Differentiation with Single Crystals of a Conductive MOF Hosting Electron Spin Qubits
- High-Performance Uncooled Infrared Photodetection Based on van der Waals Metallic FePd2Te2 Nanoflakes
- Electronic structure and optoelectronic performance of a nanostructured copper(ii) pyranoquinoline complex: DFT insights for temperature-sensing and photodetection applications
- Na+-Intercalated Two-Dimensional Vermiculite-Modified TiO2 Electron Transport Layer for Enhanced CsPbI2Br Perovskite Solar Cells
BibTeX
@article{di2026zerodimensional,
title = {{Zero-Dimensional Lead-Free Perovskite Single Crystals for High-Performance Photodetection}},
author = {Jiayu Di and Shuixiu Lyu and Liuyi Li and Dawei Wang and Bin Lu},
journal = {Nanomaterials},
year = {2026},
month = nov,
doi = {10.3390/nano16211402},
url = {https://www.mdpi.com/2079-4991/16/21/1402},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Zero-Dimensional Lead-Free Perovskite Single Crystals for High-Performance Photodetection
AU - Jiayu Di
AU - Shuixiu Lyu
AU - Liuyi Li
AU - Dawei Wang
AU - Bin Lu
PY - 2026
DA - 2026/11/01
JO - Nanomaterials
DO - 10.3390/nano16211402
UR - https://www.mdpi.com/2079-4991/16/21/1402
AB - The rapid development of optoelectronic technologies has placed ever-increasing demands on high-performance photodetectors, as the intrinsic properties of the active materials fundamentally determine the detection limit and operational stability. Although organic–inorganic hybrid perovskites exhibit superior optoelectronic properties, lead-based perovskites suffer from the drawbacks of heavy-metal toxicity and poor structural stability, which severely limit their practical applications. Low-dimensional lead-free perovskite single crystals have therefore emerged as a promising material system, owing to their extremely low defect density, grain-boundary-free nature, and strong intrinsic stability. Here, high-quality 0D lead-free MA3Sb2I9 single crystals were grown via a seed-induced two-step crystallization method, and photodetectors based on these single crystals were fabricated. The resulting photodetector exhibits a high responsivity of 22.77 A/W, an external quantum efficiency (EQE) of 6971.92%, and a specific detectivity of 1.49 × 1012 Jones. Notably, stable photoresponse was maintained over ~450 on/off switching cycles, evidencing excellent operational repeatability and long-term stability. These results highlight the great potential of MA3Sb2I9 single crystals as a stable, lead-free candidates for high-performance photodetection.
SN - 2079-4991
ER -