2021
DOI: 10.1021/acssuschemeng.1c04542
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Simple Method of Dual Passivation with Efficiency Beyond 20% for Fabricating Perovskite Solar Cells in the Full Ambient Air

Abstract: In order to further promote the commercial application of perovskite solar cells (PSCs), it is particularly important to fabricate devices in the ambient air condition. Herein, we explore a simple method to reproduce high-efficiency and stable PSCs using the one-step anti-solvent deposition conducted in the full ambient air. NH 4 Ac (ammonium acetate), which is green and environmentally friendly, is first introduced into an anti-solvent (ethyl acetate) to enhance the photovoltaic performance and stability of d… Show more

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Cited by 12 publications
(7 citation statements)
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“…This method was adopted from our previous work [ 14 ]; the fluorine-doped tin oxide (FTO) glass substrates were sequentially cleaned with acetone, isopropanol, anhydrous alcohol, and deionized water in a sequential ultrasonic cleaner for 15 min, followed by a 5 min plasma-cleaning treatment for 50 W.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…This method was adopted from our previous work [ 14 ]; the fluorine-doped tin oxide (FTO) glass substrates were sequentially cleaned with acetone, isopropanol, anhydrous alcohol, and deionized water in a sequential ultrasonic cleaner for 15 min, followed by a 5 min plasma-cleaning treatment for 50 W.…”
Section: Methodsmentioning
confidence: 99%
“…Limiting ion transportation, passivating surfaces, adjusting compositions, and synthesizing low-dimensional perovskite materials are only some of the techniques employed to enhance long-term stability [ 12 , 13 , 14 ]. Substituting Pb 2+ with trivalent cations like Sn 2+ and Ge 2+ is the only proven method of eliminating Pb toxicity.…”
Section: Introductionmentioning
confidence: 99%
“…In order to make perovskite solar cells industrialized at low cost, our experiment will be carried out under ambient conditions. Many studies have also verified that PSCs with high performance can be prepared under ambient conditions. Compared to pure SnO 2 colloid precursor, PVEM could effectively reduce the agglomeration of SnO 2 nanocrystals, while regulation and arrangement of SnO 2 nanocrystals on an ITO substrate can be obtained by coordination of PVEM. The resulting perovskite layer deposited on a PVEM–SnO 2 film exhibited a better vertically aligned crystal growth and higher quality.…”
Section: Results and Discussionmentioning
confidence: 99%
“…In many existing studies on chemical passivation, the focus has largely been on the hydrogen bonds formed between passivating molecules and the surface of perovskite films. These bonds have been demonstrated to inhibit the migration of organic cations, thereby enhancing the stability of perovskite films. However, the potential impact of hydrogen bonding between passivating molecules themselves has been largely overlooked. Theoretically, without altering the microstructure of the perovskite, such intermolecular hydrogen bonding could be even more effective in enhancing both the PCE and stability of the PSCs. , On the one hand, hydrogen bonding among the passivating molecules can create numerous carrier transport channels, structured as “perovskite-passivating molecule-perovskite”.…”
Section: Introductionmentioning
confidence: 99%