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PreprintCC BYChemRxiv

Anomalous Polarization Driven Quantum Confined Stark Effect in Halide Perovskite Polymer Quantum Structures for Single Layer Electroluminescence

  • Sehreen Manzoor1,2
  • Chaithanya Pusapalli1,2
  • Prasanna Kumar S Mural1,2
  • Aswani Yella1,2
  1. 1Department of Metallurgical Engineering and Material Science
  2. 2Indian Institute of Technology Bombay
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Abstract

The quantum-confined Stark effect (QCSE) has emerged as a powerful mechanism for electrically tuning the optical properties of semiconductors. Through QCSE-induced band-structure modulation, we show that the soft-lattice ionic species and electroactive polymer interact in an anomalous polarization field mediating ion conduction, beyond the conventional bias-driven migration. The stability and magnitude of this conduction channel are governed by the spatial distribution of bound charges at the polarized interface, tunable through external poling. Single layer Li+-free light-emitting electrochemical cells (LEECs) with a PAN:PEO:MAPbBr3 composite were fabricated. The resulting anomalous internal electric field not only lowers the turn-on voltage to ~ 3 V by assisting charge injection but also imprints a measurable Quantum Confined Stark Effect (QCSE) on the embedded quantum dots. The results establish polarization-driven ion conduction as a powerful mechanism for designing next-generation solid-state optoelectronics.

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Cite

BibTeXRIS
BibTeX
@misc{manzoor2026anomalous,
  title = {{Anomalous Polarization Driven Quantum Confined Stark Effect in Halide Perovskite Polymer Quantum Structures for Single Layer Electroluminescence}},
  author = {Sehreen Manzoor and Chaithanya Pusapalli and Prasanna Kumar S Mural and Aswani Yella},
  howpublished = {ChemRxiv},
  year = {2026},
  month = oct,
  doi = {10.26434/chemrxiv.15010953/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010953/v1},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Anomalous Polarization Driven Quantum Confined Stark Effect in Halide Perovskite Polymer Quantum Structures for Single Layer Electroluminescence
AU  - Sehreen Manzoor
AU  - Chaithanya Pusapalli
AU  - Prasanna Kumar S Mural
AU  - Aswani Yella
PY  - 2026
DA  - 2026/10/23
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15010953/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010953/v1
AB  - The quantum-confined Stark effect (QCSE) has emerged as a powerful mechanism for electrically tuning the optical properties of semiconductors. Through QCSE-induced band-structure modulation, we show that the soft-lattice ionic species and electroactive polymer interact in an anomalous polarization field mediating ion conduction, beyond the conventional bias-driven migration. The stability and magnitude of this conduction channel are governed by the spatial distribution of bound charges at the polarized interface, tunable through external poling. Single layer Li+-free light-emitting electrochemical cells (LEECs) with a PAN:PEO:MAPbBr3 composite were fabricated. The resulting anomalous internal electric field not only lowers the turn-on voltage to ~ 3 V by assisting charge injection but also imprints a measurable Quantum Confined Stark Effect (QCSE) on the embedded quantum dots. The results establish polarization-driven ion conduction as a powerful mechanism for designing next-generation solid-state optoelectronics.
ER  -