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Optimization of doping design for planar P-N homologous junction perovskite solar cells.
Front Chem
March 2024
School of Energy Science and Engineering, Central South University, Changsha, China.
In this study, we used the solar cell capacitance simulator (SCAPS) to analyse numerically the performance of perovskite solar cells (PSCs) containing CHNHPbI. The findings indicate that P-N homologous junction processing based on traditional P-I-N PSCs can enhance the photoelectric conversion efficiency (PCE). Furthermore, the authors analyzed the effect of uniform P-N doping of CHNHPbI, concluding that the photoelectric efficiency can be improved from 16.
View Article and Find Full Text PDFInterfacial Layer Materials with a Truxene Core for Dopant-Free NiO-Based Inverted Perovskite Solar Cells.
Small
August 2024
Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan, ROC.
Nickel oxide (NiO) is commonly used as a holetransporting material (HTM) in p-i-n perovskite solar cells. However, the weak chemical interaction between the NiO and CHNHPbI (MAPbI) interface results in poor crystallinity, ineffective hole extraction, and enhanced carrier recombination, which are the leading causes for the limited stability and power conversion efficiency (PCE). Herein, two HTMs, TRUX-D1 (N,N,N-tris(9,9-dimethyl-9H-fluoren-2-yl)-5,5,10,10,15,15-hexaheptyl-N,N,N-tris(4-methoxyphenyl)-10,15-dihydro-5H-diindeno[1,2-a:1',2'-c]fluorene-2,7,12-triamine) and TRUX-D2 (5,5,10,10,15,15-hexaheptyl-N,N,N-tris(4-methoxyphenyl)-N,N,N-tris(10-methyl-10H-phenothiazin-3-yl)-10,15-dihydro-5H-diindeno[1,2-a:1',2'-c]fluorene-2,7,12-triamine), are designed with a rigid planar C symmetry truxene core integrated with electron-donating amino groups at peripheral positions.
View Article and Find Full Text PDFMorphological investigation and 3D simulation of plasmonic nanostructures to improve the efficiency of perovskite solar cells.
Sci Rep
October 2023
Department of Electrical and Computer Engineering, Tarbiat Modares University (TMU), Tehran, Iran.
The light absorption process is a key factor in improving the performance of perovskite solar cells (PSCs). Using arrays of metal nanostructures on semiconductors such as perovskite (CHNHPbI), the amount of light absorption in these layers is significantly increased. Metal nanostructures have been considered for their ability to excite plasmons (collective oscillations of free electrons).
View Article and Find Full Text PDFLaser-Assisted Ultrafast Fabrication of Crystalline Ta-Doped TiO for High-Humidity-Processed Perovskite Solar Cells.
ACS Appl Mater Interfaces
April 2022
Department of Materials, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
A titanium dioxide (TiO) compact film is a widely used electron transport layer (ETL) for n-i-p planar perovskite solar cells (PSCs). However, TiO sufferers from poor electrical conductivity, leading to high energy loss at the perovskite/ETL/transparent conductive oxide interface. Doping the TiO film with alkali- and transition-metal elements is an effective way to improve its electrical conductivity.
View Article and Find Full Text PDFCryogenic Focused Ion Beam Enables Atomic-Resolution Imaging of Local Structures in Highly Sensitive Bulk Crystals and Devices.
J Am Chem Soc
February 2022
Physical Sciences and Engineering Division, Advanced Membranes and Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
With the development of ultralow-dose (scanning) transmission electron microscopy ((S)TEM) techniques, atomic-resolution imaging of highly sensitive nanomaterials has recently become possible. However, applying these techniques to the study of sensitive bulk materials remains challenging due to the lack of suitable specimen preparation methods. We report that cryogenic focused ion beam (cryo-FIB) can provide a solution to this challenge.
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