This work provided a new strategy to improve the junction quality and performance of nanostructured Si/PEDOT PSS HSCs.
These results indicate that the junction quality plays a key role in the performance of the hybrid organic-inorganic solar cell.
Surface analysis using Auger Nanoprobe Microscopy analysis reveals that a KCN etch can selectively remove potentially harmful Ag-rich secondary phases, therefore improving the MoO3/AZTSe junction quality.
Maintaining junction quality with ultra-thin window layers is facilitated by use of a high resistance oxide buffer layer, such as SnO2, In2O3 or Ga2O3, between the heteropartner and the transparent conductive oxide.
This novel doping approach enables 1) simplification of the process flow by eliminating the non-value add steps such as PSG etch and junction isolation common to diffusion-based processes, 2) improved junction quality compared to diffusion processes through precise dopant control, and 3) improved surface passivation using a thermal oxide/silicon nitride ARC.
Smaller value of m 1 + m 2 indicates better PN junction quality [6].
However, the PCE of HHSCs is greatly restricted to inferior junction quality at the PEDOT PSS/n-Si interface.
Based on the new double heterojunction circuit, we found that smaller value of m reflects better PN junction quality in PSCs.
The p-n junction quality was determined by measuring the current voltage characteristic in the growth direction, in darkness, in the forward and reverse bias configurations.
This new method can theoretically solve the dilemma of the parameter diode ideal factor being larger than 2 from an ideal single heterojunction equivalent circuit, which usually is in the range from 1 to 2. The diode ideal factor reflects PN junction quality, which influences the recombination at electron transport layer/perovskite and perovskite/hole transport layer interface.
The score is based solely on the number of bases on each side of the junction, the quality of those bases, and the junction's similarity to potential full-length matches.
