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Updated: May 13, 2026
Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
Direct Formation of Karst Fenglin-like Cu-Based Metal-Organic Framework on CuSCN Hole Transport Layer for Highly
Nideesh Perumbalathodi1, Sarin Sajjadu Krishna1, Tzu-Sen Su2
1Department of Chemical Engineering, National Tsing Hua University, 101, Section 2, Kuang Fu Road, Hsinchu 30013, Taiwan (R.O.C.).
Abstract:
Improving charge extraction efficiency and minimizing interfacial recombination losses are critical to enhancing the performance of inverted perovskite solar cells (PSCs). Although copper thiocyanate (CuSCN) exhibits excellent hole transport capability, its interfacial reactivity and poor contact with the perovskite (PVSK) layer result in inefficient hole extraction and severe interfacial recombination, significantly limiting device efficiency and stability. In this study, we present a novel strategy to directly grow a three-dimensional metal-organic framework (MOF), Cu3(HHTP)2, in situ on wet-coated CuSCN films. This approach enables the construction of a hybrid CuSCN/Cu3(HHTP)2 hole transport layer that significantly improves interfacial quality and enhances charge transport characteristics. Experimental results demonstrate that PSCs incorporating this hybrid HTM structure achieve a maximum power conversion efficiency (PCE) of 20.05%, substantially outperforming unmodified CuSCN-based devices (16.10%) and exhibiting superior operational stability.
