Work

Ni doping in CsPbCl 3 nanocrystals: the key to enhanced photoluminescence

Year: 2025

Type: article

Abstract: integration, while temperature-dependent photoluminescence studies reveal that Ni-induced shallow trap states enable vibrational coupling, facilitating charge carrier back-transfer to excitonic states. At 2% doping, this mechanism optimally enhances radiative recombination, achieving room-temperature vibrationally assisted delayed fluorescence (VADF). Förster resonance energy transfer (FRET) experiments further validate the improved radiative efficiency. This work establishes transition metal doping as a transformative and selective strategy for tuning optical properties, paving the way for advancements in energy-efficient technologies such as light-emitting diodes, lasers, and photovoltaics.

Source: Chemical Science

DOI: 10.1039/d5sc00564g

Authors: Soumya Panja, Prasenjit Mandal, Subhashri Mannar, Arpan Das, Shobhana Narasimhan, Ranjani Viswanatha

Institution: Jawaharlal Nehru Centre for Advanced Scientific Research

Language: English

Topic: Perovskite Materials and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond