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-Based mostly 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 strategy 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 could be simply produced on the kilogram scale beginning with low-cost and earth-abundant precursor powders, comparable to TiC, TiN, TiB2, and many others., 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 lure facilities within the materials and lowered 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 underneath 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 strategy 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 power microscopy (pcAFM) to map the photocurrent distribution on the nanoscale for a similar perovskite layers on each kinds of ETLs. *
pcAFM measurements had been taken in air with a commercially out there Atomic Drive Microscopy by utilizing 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 mild 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 pictures and (g, i) corresponding pcAFM photocurrent pictures 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-Based mostly 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-Based mostly 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 underneath a Inventive Commons Attribution 4.0 Worldwide License, which allows use, sharing, adaptation, distribution and copy in any medium or format, so long as you give applicable credit score to the unique creator(s) and the supply, present a hyperlink to the Inventive Commons license, and point out if adjustments had been made. The photographs or different third-party materials on this article are included within the article’s Inventive Commons license, except indicated in any other case in a credit score line to the fabric. If materials is just not included within the article’s Inventive Commons license and your meant use is just not 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/.