Open AccessLead-free perovskite and double perovskite solar cells
Author(s) -
Aqel Mashot Jafar,
Kawther A. Khalaph,
Amar Moula Hmood
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/765/1/012047
Subject(s) - perovskite (structure) , halide , materials science , energy conversion efficiency , lead chloride , open circuit voltage , antimony , chloride , optoelectronics , chemistry , inorganic chemistry , crystallography , voltage , metallurgy , physics , quantum mechanics
The toxicity and instability of lead-halide perovskite materials in the solar cells are yet demands must be resolved to vie to find alternatives of free lead-based halide perovskites and double perovskite materials. Here we report on the experimental synthesis of a new family of lead-free inorganic halide double perovskites Cesium copper antimony chloride (Cs 2 CuSbCl 6 ) and perovskite Cesium copper chloride (CsCuCl3) as a based sensitizer of the solar cells and studies of its characterize and optical properties of the Photo-Voltaic (PV) device. The configuration structural of PV devices is (FTO/TiO 2 /CsCuCl 3 or Cs 2 CuSbCl 6 /Cu 2 O/Al electrode). The double perovskite Cs 2 CuSbCl 6 and Perovskite CsCuCl 3 are successfully synthesized, performed of structural investigations by X-ray diffraction, and depicted of optical properties via optical absorption of UV−vis measurement. The perovskite (CsCuCl 3 ) belongs to the space grope P6122 and the Hexagonal structure phase. The strongest peeks of the XRD diffraction pattern of the double perovskite Cs 2 CuSbCl 6 are taken at the reflection points (-201), (-202), (-3-11), (220), (-223) and (-5-34). From UV−vis measurements obtained values of a direct gap of both (Cs 2 CuSbCl 6 ) and (CsCuCl 3 ) are (1.5 and 2.2) eV, respectively. The optimum power conversion efficiency (PCE) of the PV device which used Cs 2 CuSbCl 6 as a sensitizer is 0.94%, the filling factor is 24%, the open-circuit voltage is 582.5 mV and the short circuit current was 2.656 mA. The measurement is carried out under one sun intensity illumination (1000 W/m 2 ).