The aim is to evaluate the performance of (PEA)2PbBr4 single crystals for ultra-weak light detection.
Developed lateral photodetectors using (PEA)2PbBr4 single crystals.
Measured the detectivity and responsivity under low-light conditions.
Assessed the stability of response to ultra-weak light.
Achieved a detectivity of 2.47 nW cm −2.
Demonstrated stable response during light detection.
Reported high responsivity values for the photodetectors.
Abstract
High-quality (PEA) 2 PbBr 4 single crystals enable lateral photodetectors for ultra-weak light detection with stable response, high responsivity, and detectivity down to 2.47 nW cm −2 .