The optimization of nonradiative recombination losses by interface engineering is vital to the event of environment friendly, steady, and hysteresis-free perovskite photo voltaic cells (PSCs). *
Within the article “Interfacial Engineering with One-Dimensional Lepidocrocite TiO2-Primarily based Nanofilaments for Excessive-Efficiency Perovskite Photo voltaic Cells” Shrabani Panigrahi, Hussein O. Badr, Jonas Deuermeier, Santanu Jana, Elvira Fortunato, Rodrigo Martins and Michel W. Barsoum, for the primary time in photo voltaic cell know-how, current a novel method to interface modification by using one-dimensional lepidocrocite (henceforth known as 1DL) TiO2-based nanofilaments, NFs, between the mesoporous TiO2 (mp TiO2) and halide perovskite movie in PSCs to enhance each the effectivity and stability of the gadgets. *
The 1DLs may be simply produced on the kilogram scale beginning with low-cost and earth-abundant precursor powders, similar to TiC, TiN, TiB2, and so forth., and a typical natural base like tetramethylammonium hydroxide. Notably, the 1DL deposition influenced perovskite grain growth, leading to a bigger grain measurement and a extra compact perovskite layer. Moreover, it minimized entice facilities within the materials and diminished cost recombination processes, as confirmed by the photoluminescence evaluation. *
The general promotion led to an improved energy conversion effectivity (PCE) from 13 ± 3.2 to 16 ± 1.8% after interface modification. The champion PCE for the 1DL-containing gadgets is 17.82%, which is greater than that of 16.17% for the management gadgets. *
The passivation impact is additional demonstrated by evaluating the soundness of PSCs below ambient circumstances, whereby the 1DL-containing PSCs preserve ∼87% of their preliminary effectivity after 120 days. *
The article not solely presents cost-effective, novel, and promising supplies for cathode interface engineering but in addition an efficient method to realize high-efficiency PSCs with long-term stability devoid of encapsulation. *
To get a deeper understanding of the improved photocurrent manufacturing inside the perovskite layer, the authors used photoconductive atomic drive microscopy (pcAFM) to map the photocurrent distribution on the nanoscale for a similar perovskite layers on each varieties of ETLs. *
pcAFM measurements have been taken in air with a commercially obtainable Atomic Power Microscopy through the use of conductive PtIr-coated NanoWorld Pointprobe® CONTPt silicon AFM probes (typical resonance frequency = 13 kHz, typical spring fixed = 0.2 N/m) and a present detector holder. A lightweight supply was used to gentle the samples. *
Characterization of the perovskite movies (MAPbI3 is denoted as MAPI inside determine) deposited on mp TiO2 and mp/1DL ETLs: (a, b) FESEM micrographs, (c) XRD patterns, (d) UV/vis absorption, and (e) PL spectra. (f, h) AFM topography photos and (g, i) corresponding pcAFM photocurrent photos of the perovskite layers deposited on mp TiO2 and mp/1DL TiO2 ETLS, respectively. (j) Photocurrent line profiles throughout the perovskite layers.
*Shrabani Panigrahi, Hussein O. Badr, Jonas Deuermeier, Santanu Jana, Elvira Fortunato, Rodrigo Martins and Michel W. Barsoum
Interfacial Engineering with One-Dimensional Lepidocrocite TiO2-Primarily based Nanofilaments for Excessive-Efficiency Perovskite Photo voltaic Cells
ACS Omega 2024, 9, 51, 50820–50829
DOI: https://doi.org/10.1021/acsomega.4c09516
Open Entry The article “Interfacial Engineering with One-Dimensional Lepidocrocite TiO2-Primarily based Nanofilaments for Excessive-Efficiency Perovskite Photo voltaic Cells” by Shrabani Panigrahi, Hussein O. Badr, Jonas Deuermeier, Santanu Jana, Elvira Fortunato, Rodrigo Martins and Michel W. Barsoum is licensed below a Inventive Commons Attribution 4.0 Worldwide License, which allows use, sharing, adaptation, distribution and replica in any medium or format, so long as you give acceptable credit score to the unique creator(s) and the supply, present a hyperlink to the Inventive Commons license, and point out if modifications have been made. The photographs or different third-party materials on this article are included within the article’s Inventive Commons license, until indicated in any other case in a credit score line to the fabric. If materials will not be included within the article’s Inventive Commons license and your meant use will not be permitted by statutory regulation or exceeds the permitted use, you have to to acquire permission straight from the copyright holder. To view a replica of this license, go to http://creativecommons.org/licenses/by/4.0/.