Retraction: Neodymium and Praseodymium Doped Perovskite Materials for Highly Stable CuInS₂‐Hole‐Transport Layer‐Based Perovskite Solar Cells

Abstract

“Neodymium and Praseodymium Doped Perovskite Materials for Highly Stable CuInS2‐Hole‐Transport Layer‐Based Perovskite Solar Cells” by R. Taheri‐Ledari, S. Gharibi, A. Maleki, S. Akin, and A.E. Shalan Energy Technol., 2022, 2100936. The above article, published online on 15 December 2021 in Wiley Online Library, has been retracted by agreement between the former journal Editor in Chief John Uhlrich, the interim Editor in Chief Till von Graberg, and Wiley‐VCH GmbH. Data irregularities in Figures 2b and 5b were pointed out by authors S. Akin, A. E. Shalan and corroborated by peer review from a specialist in the experimental technique. The authors were unable to provide the complete original data to restore confidence in these results. The retraction was necessary as the validity of the conclusions is substantially affected by these irregularities. While S.A. and A.E.S. agreed with the decision to retract the manuscript, R.T.L., A.M., and S.G. did not. Author contributions: R.T.L: Wrote the manuscript and interpreted the analyses. He has also drawn the graphics used in the manuscript. S.G: Performed all practical stages and provided the analyses. A.M: Managed all stages of the work, and financially supported the expenditures (Supervisor). S.A: Revised the manuscript and addressed the reviewers' comments. A.E.S: Edited the manuscript and improved the English presentation.

Efficient and Stable Perovskite Solar Cells by B-Site Compositional Engineered All-Inorganic Perovskites and Interface Passivation

“…In addition, the ionic radii (112 pm) of Nd 3+ is similar to that (133 pm) of Pb 2+ . Thus, the low-lying 4f orbital Nd 3+ is utilized to tune the vacancies at the B-site Pb 2+ , and synergistically endowing the optoelectronic properties of perovskite materials is expected. ,,,− …”

“…Moreover, Nd 3+ in the CsPbI 2 Br lattice probably enhances the lattice volume and tunes the total superposition of electron wave functions in the CsPbI 2 Br: x Nd 3+ lattice . In addition, the low-lying 4f orbitals of Nd 3+ probably could induce a distortion of the [Pb­(I x Br 1– x ) 6 ] 4– octahedra and boosted the density of state, resulting in enlarged bandgaps of the CsPbI 2 Br: x Nd 3+ thin films. ,,− ,− …”

Rebirth of CuInS2 as hole transport material for perovskite solar cells

“…As for the film deposition, CIS HTMs are easily synthesized by chemical routes and deposited by nonvacuum techniques. As Taheri‐Ledari et al 10 have deposition CIS HTL on a perovskite absorber layer of uniform thickness (Figure 3A) and a notable efficiency of 15.75% with a significant short‐circuit current density of 24.54 mA/cm 2 as seen in Figure 3B,C. Whereas, the device performance is concerned, it is a bit lower than the one with Spiro‐OMeTAD, but the low cost, easy synthesis and stability to atmospheric conditions (Figure 3D) are some prominent features that can make one ignore the shortfall.…”

DNA hydrogels and nanogels for diagnostics, therapeutics, and theragnostics of various cancers

“…7,8 Nowadays, the compilation of Watson-Crick pairing methods and nucleotide synthesis strategies has opened new windows for researchers in the field of materials science. 9,10 Generally, hydrogels are considered as a highly appropriate substrate in various areas such as energy, [11][12][13] catalysis, [14][15][16][17][18][19] environmental sciences, [20][21][22][23][24][25][26] and medical applications. [27][28][29][30][31] Specifically, in the area of drug delivery to cancer tissues, hydrogels are widely used because they are capable of absorbing water molecules and swelling in the target organ, resulting in drug release in a controlled manner.…”