TY  - JOUR
AV  - restricted
Y1  - 2025/02//
TI  - Investigation of Cr3+ Doped CuGaO2 as an Inorganic Hole Transport Material (HTM) For Perovskite Solar Cells
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
UR  - https://doi.org/10.1016/j.surfin.2025.106036
PB  - Elsevier BV
N2  - Perovskite Solar Cells (PSCs) are becoming feasible for developing effective energy harvesting devices. The biggest obstacles to their commercialization are the high price and lack of environmental sustainability of the organic hole transporting materials (HTMs). CuGaO2 provides high coordination, stability, and low-temperature processing for effective and reliable PSCs. Here, a variety of solid solutions of CuGaO2 and CuCrO2 were created by a hydrothermal process to obtain the ideal composition that results in reliable size control and high hole conductivity employed for surface passivation at the perovskite contact. The composition ranges of CuGaO2 doped with Cr3+ were CuGa1-xCrxO2 (0 ? x ? 1, CuGaO2). XRD patterns were obtained for the particles of various compositions, these (006), (012), (104) and (024) having 2? values 33.23°, 36.48°, 43.43°, and 50.43° peaks were identified without the appearance of any impurity peaks. SEM micrographs of Cr3+ doped Copper Gallium Oxide depict a quasi-spherical structure and a quasi-hexagonal plate-like shape. The optical properties of nanoparticles were studied using UV-visible spectroscopy that showed the bandgap of CuGaO2 was decreased from 3.32 eV to 3.05 eV. The chemical properties of nanoparticles were studied by using FTIR indicating the presence of metal oxide groups of bending and stretching vibrations. From J-V curves of the prepared perovskite solar cell devices, the device with 30% of Cr doped CuGaO2 achieves a PCE of 16.9%, much higher than the reference samples without Cr doping.
ID  - discovery10205022
A1  - Zulfiqar, Kinza
A1  - Chaudhary, Mehmoona
A1  - Ali, Jazib
A1  - Wang, Mingqing
A1  - Anwar, Hafeez
A1  - Fawy, Khaled Fahmi
A1  - Rasheed, Tahir
KW  - Perovskite solar cell
KW  -  Cr3+ doped CuGaO2
KW  -  Inorganic Hole Transport Material
KW  -  Power Conversion Efficiency
JF  - Surfaces and Interfaces
ER  -