Achieving high-performance planar perovskite solar cells with co-sputtered Co-doping NiO_xhole transport layers by efficient extraction and enhanced mobility

Abstract

Magnetron sputtered Co-doped NiO HTLs show greatly improved hole mobility and long-term stability.

Doped Charge‐Transporting Layers in Planar Perovskite Solar Cells

“…From the viewpoints of device stability and commercialization, inorganic HTMs are desired for continuous evolution of high‐performance PSCs . Various inorganic p‐type semiconductors with suitable optical properties, good stability, wide bandgaps, and matched energy levels such as CuSCN, NiO x , MoO 3 , and V 2 O 5 have been developed as efficient HTMs in PSCs …”

“…Jin and co‐workers doped Co into NiO x HTL in p‐i‐n PSCs using magnetron sputtering deposition technique for the first time. The doped HTL shown an increased hole mobility and smoother surface morphology compared with the reference one.…”

Analysing the Prospects of Perovskite Solar Cells within the Purview of Recent Scientific Advancements

“…Recently, Wei Chen et al reported Cs-doping in NiO x layers in inverted perovskites which facilitates deep valence band leading to an efficiency gain of 19.35% [55]. Similarly, doping of Co, Li-Cu, Cu, and Ag have also been reported [56][57][58][59].…”

The Role of Lanthanum in a Nickel Oxide‐Based Inverted Perovskite Solar Cell for Efficiency and Stability Improvement

“…Thus far,s ophisticated and high-cost preparation methods such as pulsed laser deposition, high-temperature spray pyrolysis, and atomicl ayer deposition have been utilized to improve the qualityo ft he NiO film ascribed to high-performing solar cells, which are always reliant on the film's quality. [7,[10][11][12] Huang et al have demonstrated aP CE of 12.6 %f or ac obalt-doped NiO x solarc ell by the sputtering method; [13] whereas 16.4 %e fficiencyw as achieved when au niform NiO x layer was preparedt hrough the electrochemical deposition process. [11] The conductivity of NiO x is usuallyt uned by dopingw ith other elements such as copper, [14] cobalt, [13] or co-doping of lithium and cobalt [15] through stoichiometry adjustment.…”

“…[7,[10][11][12] Huang et al have demonstrated aP CE of 12.6 %f or ac obalt-doped NiO x solarc ell by the sputtering method; [13] whereas 16.4 %e fficiencyw as achieved when au niform NiO x layer was preparedt hrough the electrochemical deposition process. [11] The conductivity of NiO x is usuallyt uned by dopingw ith other elements such as copper, [14] cobalt, [13] or co-doping of lithium and cobalt [15] through stoichiometry adjustment. By introducing copper as the co-dopant within the NiO x matrix, the PCE was dramatically increased from 8.9 %( foru ndoped NiO x )t oa ni mpressive efficiency of 15.4 %, revealing the effectiveness of the dopant in promoting the power conversion ability of the solar cell.…”