A comprehensive theoretical study of halide perovskites ABX3

Optoelectronic Properties and Defect Physics of Lead-Free Photovoltaic Absorbers Cs2AuIAuIIIX6 ( Kangsabanik1, Ghorui2, Aslam3 et al. 2020Phys. Rev. Applied

“…4(c)), the Fermi level pinning will be at a position near the mid gap region, indicating very low intrinsic carrier concentration. Overall, one can see that iodine vacancies (along with V Cs ) are most dominant ones at all growth conditions, in which V I(1) is more probable than V I (2) . Apart from these, there In the phase diagram these conditions are represented by 'A', 'D', 'G', points respectively.…”

“…High optical absorption and defect tolerance made its efficiency as high as 22.1%, almost comparable to commercial silicon solar cells. [1][2][3] Despite being highly efficient, it still has not been commercialized till date, mainly due to two reason, (i) poor stability in ambient environment (ii) toxicity due to Pb. While replacing the organic cation with inorganic Cs has helped in stability, but the presence of Pb seems insurmountable till now.…”

Computational high throughput screening of inorganic cation based halide perovskites for perovskite only tandem solar cells

“…The structural and thermodynamic stability of the perovskites is an important aspect to look at, in order to use them for suitable practical applications. Inorganic halide perovskites, in general, are more stable than their hybrid counterparts, the instability of which are owed to the weakly bonded soft organic cation [32][33][34][35][36][37][38][39][40][41][42][43][44]. However, the degree of stability varies with the variation of the 3 inorganic cations using in this study.…”

“…Inorganic materials are known to have higher stability than the organic materials, especially at higher temperatures [29][30][31]. This aspect has been exploited quite well experimentally, in which the organic cation has been replaced by the inorganic Cs + cation that resulted in a rapid decrease in instability problems, thereby promising a relatively higher intrinsic or thermodynamic stability against decomposition to binary halide products [32][33][34][35][36][37][38][39][40][41][42][43][44]. However, theoretical investigation towards this pressing issue is still limited [11][12][13][14][15][16][17][18][19].…”

Critical analysis of stability and performance of organometal halide perovskite solar cells via various fabrication method (Review)

“…Recently, solar cells based on halide perovskites have been widely explored due to their high PCE, straightforward and low manufacturing cost [8]. Besides that, organometal halide perovskites have been attractive due to very excellent electrical and optical properties such as: (i) in mixed halide perovskite, the diffusion lengths is up to 1 [9], [10], (ii) good ambipolar (can be n-or p-type) transport of charge [11][12], (iii) absorption in the visible range is efficient [15][16][17], and (iv) synthesis method straightforward [16].…”