scholarly journals Mixed-Cation Mixed-Metal Halide Perovskites for Photovoltaic Applications: A Theoretical Study

ACS Omega ◽  
2020 ◽  
Vol 5 (8) ◽  
pp. 4347-4351 ◽  
Author(s):  
Rongjian Sa ◽  
Diwen Liu ◽  
Yiting Chen ◽  
Shaoming Ying

Author(s):  
David Alberto Valverde-Chávez ◽  
Esteban Rojas-Gatjens ◽  
Jacob Williamson ◽  
Sarthak Jariwala ◽  
Yangwei Shi ◽  
...  

We examine the role of surface passivation on carrier trapping and nonlinear recombination dynamics in hybrid metal-halide perovskites by means of excitation correlation photoluminescence (ECPL) spectroscopy. We find that carrier...



2017 ◽  
Vol 5 (3) ◽  
pp. 902-909 ◽  
Author(s):  
Qiong Wang ◽  
Miaoqiang Lyu ◽  
Meng Zhang ◽  
Jung-Ho Yun ◽  
Lianzhou Wang

Metal halide perovskites, particularly lead halide perovskites, have seen extraordinary breakthroughs in photovoltaics with power conversion efficiency swiftly surging to over 22% in the past few years, demonstrating their huge potential for rivalry with crystalline silicon solar cells in terms of production cost and performance for the future photovoltaic market.





2018 ◽  
Vol 10 (6) ◽  
pp. 5485-5491 ◽  
Author(s):  
Wanliang Tan ◽  
Andrea R. Bowring ◽  
Andrew C. Meng ◽  
Michael D. McGehee ◽  
Paul C. McIntyre


2020 ◽  
Vol 30 (38) ◽  
pp. 2001752 ◽  
Author(s):  
Maged Abdelsamie ◽  
Junwei Xu ◽  
Karsten Bruening ◽  
Christopher J. Tassone ◽  
Hans‐Georg Steinrück ◽  
...  


2016 ◽  
Vol 7 (14) ◽  
pp. 2722-2729 ◽  
Author(s):  
James Endres ◽  
David A. Egger ◽  
Michael Kulbak ◽  
Ross A. Kerner ◽  
Lianfeng Zhao ◽  
...  


2017 ◽  
Vol 10 (1) ◽  
pp. 236-246 ◽  
Author(s):  
Matthew T. Klug ◽  
Anna Osherov ◽  
Amir A. Haghighirad ◽  
Samuel D. Stranks ◽  
Patrick R. Brown ◽  
...  

Mixed-metal compositional screening identifies Co2+ as capable of partial B-site substitution in CH3NH3PbI3, which supplies new dimensions of material tunability.



2017 ◽  
Vol 148 (5) ◽  
pp. 795-826 ◽  
Author(s):  
Sebastian F. Hoefler ◽  
Gregor Trimmel ◽  
Thomas Rath


2019 ◽  
Author(s):  
Subhajit Bhattacharjee ◽  
Sonu Pratap Chaudhary ◽  
Sayan Bhattacharyya

<p>Metal halide perovskites with high absorption coefficient, direct generation of free charge carriers, excellent ambipolar charge carrier transport properties, point-defect tolerance, compositional versatility and solution processability are potentially transforming the photovoltaics and optoelectronics industries. However their limited ambient stability, particularly those of iodide perovskites, obscures their use as photocatalysts especially in aqueous medium. In an unprecedented approach we have exploited the photo-absorption property of the less toxic lead-free Cs<sub>3</sub>Bi<sub>2</sub>X<sub>9 </sub>(X = Br, I) nanocrystals (NCs) to catalyse the degradation of water pollutant organic dye, methylene blue (MB) in presence of visible light at room temperature. After providing a proof-of-concept with bromide perovskites in isopropanol, the perovskites are employed as photocatalysts in water medium by designing perovskite/Ag<sub>2</sub>S and perovskite/TiO<sub>2 </sub>composite systems, with Type I (or quasi Type II) and Type II alignments, respectively. Ag<sub>2</sub>S and TiO<sub>2</sub> coatings decelerate penetration of water into the perovskite layer while facilitating charge carrier extraction. With a minimal NC loading, Cs<sub>3</sub>Bi<sub>2</sub>I<sub>9</sub>/Ag<sub>2</sub>S degrades ~90% MB within an hour. Our approach has the potential to unravel the photocatalytic properties of metal halide perovskites for a wide spectrum of real-life applications. </p>



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