MRS Meetings and Events


EN05.10.20 2023 MRS Fall Meeting

Conjugated Polyelectrolytes as Additives for Inverted Perovskite Solar Cell

When and Where

Nov 29, 2023
8:00pm - 10:00pm

Hynes, Level 1, Hall A



Jung Min Ha1,Jong Hyun Park2,Young Wook Noh2,Myoung Hoon Song2,Han Young Woo1

Korea University1,Ulsan National Institute of Science and Technology2


Jung Min Ha1,Jong Hyun Park2,Young Wook Noh2,Myoung Hoon Song2,Han Young Woo1

Korea University1,Ulsan National Institute of Science and Technology2
Defects in perovskite solar cells (PSCs) significantly hinder their efficiency and stability. To tackle this challenge, our study explores the potential of two distinct π-conjugated polyelectrolytes (CPEs), MPS2-TEA and PCPDTBT2-TMA, as additives in PSCs. Unlike previous approaches where CPEs primarily served as interlayers or charge transporters, our focus is on their direct impact within the perovskite layer for defect passivation. Through thorough analysis, we observe that MPS2-TEA exhibits superior defect passivation compared to PCPDTBT2-TMA. This difference is attributed to the highly conductive nature of MPS2-TEA, enabling efficient mitigation of defects within the perovskite layer. In contrast, PCPDTBT2-TMA's self-doping effect, along with its negative sulfonate groups stabilizing polarons, reduces its effectiveness in defect passivation. The integration of MPS2-TEA into PSCs results in remarkable outcomes. The inverted perovskite solar cell with MPS2-TEA achieved notable power conversion efficiencies (PCEs) of 22.7% retaining over 87.3% of their initial PCE after 960 hours of continuous 1-sun illumination and maintaining 89% of PCE after 850 hours at 85°C in a nitrogen glovebox without encapsulation.



Symposium Organizers

Marina Leite, University of California, Davis
Lina Quan, Virginia Institute of Technology
Samuel Stranks, University of Cambridge
Ni Zhao, Chinese University of Hong Kong

Symposium Support

Enli Technology Co., LTD

APL Energy | AIP Publishing

Session Chairs

So Min Park
Lina Quan

In this Session

Interstitial Defect Relaxation DFT Study of Lead Halide Perovskites

Water-Assisted Morphology and Crystal Engineering of Hybrid Organic-Inorganic Halide Perovskite: Implications for Optoelectronic Properties

Self-Leveling Inks for Engineering Large Area Uniformity in High-Performance Flexography-Printed Perovskite Solar Cells

Towards Highly Efficient Fully Evaporated Perovskite/Si Tandem Solar Cells

The Outstanding Role of Dielectricity in Hybrid Solar Cell Absorbers

Controlling The Crystallization of Pure Bromide Quasi-2-Dimensional Perovskite Crystals for High Efficiency Pure-Blue Light-Emitting Diodes

Compositional Engineering of Single-Crystal Perovskite for Highly Efficient Photovoltaics

Atomistic Origin of Transparent Absorption Spectra of Halide Perovskites

Exploring a Novel Family of Conjugated Polymers for High Efficiency and Thermally Stable Perovskite Solar Cells

Charge Transfer Doping of Ruddlesden–Popper Metal–Halide Perovskites via Bulk Incorporation of Organic Molecular Dopants

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Publishing Alliance

MRS publishes with Springer Nature