Premium
van der Waals Epitaxial Growth of 2D Metal–Porphyrin Framework Derived Thin Films for Dye‐Sensitized Solar Cells
Author(s) -
Wang YanYue,
Chen ShuMei,
Haldar Ritesh,
Wöll Christof,
Gu ZhiGang,
Zhang Jian
Publication year - 2018
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201800985
Subject(s) - materials science , porphyrin , thin film , calcination , stacking , van der waals force , epitaxy , energy conversion efficiency , chemical engineering , nanotechnology , layer (electronics) , optoelectronics , photochemistry , organic chemistry , molecule , catalysis , chemistry , engineering
In this work, monolithic, crystalline, porous, and oriented porphyrin thin films are grown using a novel van der Waals layer‐by‐layer (lbl) epitaxial growth protocol, yielding an unusual AB‐stacking motif of these interesting macrocycles units. Subsequently, these surface‐mounted metal‐organic frameworks (SURMOFs) are transformed by thermal treatment to yield well‐performing counter electrodes (CEs) for dye‐sensitized solar cells. During this calcination, the heterocyclic macrocycles are metalated, yielding compact, homogeneous, and very stable metalloporphyrin thin films (ZnTCPP‐C) with excellent CE performance. For thin films fabricated using three lbl cycles (thickness ≈17 nm), the power conversion efficiency is found to amount to 5.63%, making it a promising candidate to replace Pt CE (6.72%). Such calcined SURMOFs carry huge potential for fabricating electronic and photovoltaic devices.