Surface Passivation for Enhanced Performance and Stability of CsPbI3 Perovskite Quantum Dot Indoor Photovoltaics

Seon Joong Kim; Jae Won Shim

doi:10.21218/CPR.2025.13.1.001

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2025 Vol.13, Issue 1 Next Page

Surface Passivation for Enhanced Performance and Stability of CsPbI₃ Perovskite Quantum Dot Indoor Photovoltaics CsPbI₃ 페로브스카이트 양자점 실내 광전지의 성능 및 안정성 향상을 위한 표면 패시베이션 연구

31 March 2025. pp. 1-6

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Abstract

This study investigates the effect of (2-(3,6-Dibromo-9H-carbazol-9-yl) ethyl) phosphonic acid (Br-2PACz) passivation on the performance and stability of CsPbI3 PQD-based photovoltaics (PV) for indoor applications. Devices with Br-2PACz passivation exhibited improved PCE, V_OC, and FF under FL 1,000 lux conditions, attributed to reduced surface traps and suppressed charge recombination. Additionally, the decrease in trap density and enhanced moisture stability significantly improved long-term reliability. Specifically, the carbazole structure in Br-2PACz enhanced resistance to moisture, allowing the device to retain over 80% of its initial efficiency after six days at 20~30% relative humidity. These findings suggest that Br-2PACz passivation is a promising approach to boost both performance and durability for PQD-based PV systems in low-light indoor environments.

Keywords

Perovskite quantum dots

Perovskite quantum dot photovoltaics

Ligand-Passivation

Indoor light harvesting

Trap density reduction

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Information

Publisher :Korea Photovoltaic Society
Publisher(Ko) :한국태양광발전학회
Journal Title :Current Photovoltaic Research
Volume : 13
No :1
Pages :1-6
Received Date : 2024-11-18
Revised Date : 2025-01-16
Accepted Date : 2025-01-17
DOI :https://doi.org/10.21218/CPR.2025.13.1.001

Current Photovoltaic Research ISSN:2288-3274(Print) 2508-125X(Online)

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