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2026 Vol.14, Issue 3 Preview Page
Recent Trends in Interfacial Engineering for Enhancing the Efficiency and Stability of Perovskite Solar Cells

페로브스카이트 태양전지의 효율 및 안정성 향상을 위한 계면 공학 동향

Minseok Kim1
,
HyeonOh Shin1*
,
Tae-Hyuk Kwon1*
김 민석1
,
신 현오1*
,
권 태혁1*
1Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
1화학과, 울산과학기술원, 울산, 44919
*Corresponding Author
30 September 2026. pp. 103-111
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Abstract

Perovskite solar cells (PSCs) have emerged as highly promising photovoltaic technologies owing to their remarkable power conversion efficiencies and solution-processable fabrication. However, despite their rapid progress, commercialization remains hindered by interfacial energy loss, non-radiative recombination, and insufficient operational stability, all of which are closely linked to the perovskite/hole-transport layer (HTL) interface. This review summarizes recent advances in organic HTL and interfacial engineering strategies for PSCs, with a focus on four key aspects: energy-level alignment, defect passivation, ion management, and self-assembled monolayer (SAM)-based interface design. Energy-level control promotes efficient hole extraction and reduces voltage loss, while defect passivation suppresses trap-assisted recombination at the buried interface. Ion-management strategies further improve stability by mitigating ionic accumulation and migration, and SAM-based HTLs provide molecularly defined platforms for dipole modulation and interfacial structural control. Collectively, these studies establish the HTL not merely as a charge-transport layer, but as a multifunctional interfacial platform that critically determines both the photovoltaic performance and long-term stability of PSCs.

Keywords
Hole-transport layer
Energy level alignment
Defect passivation
Ion management
Self-assembled monolayer
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Information
  • Publisher :Korea Photovoltaic Society
  • Publisher(Ko) :한국태양광발전학회
  • Journal Title :Current Photovoltaic Research
  • Volume : 14
  • No :3
  • Pages :103-111
  • Received Date : 2026-04-08
  • Accepted Date : 2026-05-08
  • DOI :https://doi.org/10.21218/CPR.2026.14.3.103
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