Poly‐3‐hexylthiophene doped with iron disulfide nanoparticles for hybrid solar cells

Abstract

Summary In this work, the pyrite crystalline phase of iron disulfide nanoparticles (FeS2) about 20 to 30 nm was obtained by a two‐pot thermal method at 220°C. Subsequently, different concentrations of these nanoparticles were used as a doping agent for the conjugated poly‐3‐hexylthiophene (P3HT). The electrical resistivity of P3HT was decreased almost three orders of magnitude while adding FeS2 nanoparticles as doping, and dichlorobenzene solvent was a determinant factor for the dispersion of polymer with nanoparticles. Doped‐P3HT dichlorobenzene solution was spin coated onto the FTO/TiO2 substrate to fabricate the FTO/TiO2/P3HT:FeS2/C‐Au hybrid solar cells. Moreover, the power conversion efficiency (PCE) of hybrid devices was studied as a function of pyrite FeS2 nanoparticle concentration. The highest efficiency of 0.83% was obtained at 1% concentration of FeS2 nanoparticles. Hence, the results revealed that the FeS2 nanoparticles could be considered as an alternative charge carrier to develop the bulk hybrid solar cells.

Studying the impact of Mg doping on the physical properties of CdS nanocrystals for the fabrication of hybrid solar cells–based organic P3HT : PCBM polymers and inorganic Mg‐doped CdS nanocrystals

“…All the films showed P3HT:PC 61 BM peaks in the range between 334 and 600 nm, revealing that the CdS NCs are blended adequately with polymers. It is observed that the absorption peak intensity increases with respect to the concentration of NCs, indicating a strong interaction between the P3HT:PC 61 BM polymers and CdS NCs 48 . However, absorption peak intensity was slightly reduced for 1 wt% of CdS NCs.…”

“…It is observed that the absorption peak intensity increases with respect to the concentration of NCs, indicating a strong interaction between the P3HT:PC 61 BM polymers and CdS NCs. 48 However, absorption peak intensity was slightly reduced for 1 wt% of CdS NCs. Hence, it is apparent that the highest absorption intensity of P3HT:PC 61 BM was obtained at 0.5 wt% concentration of CdS NCs.…”

Near‐Infrared Photoactive Semiconductor Quantum Dots for Solar Cells

“…In addition to above-mentioned NBG QDs delivering considerable photovoltaic performance, there are some binary QDs that currently offer petty results with modest PCEs but have development potential, such as SnS, [59,[168][169][170][171] FeS 2 , [60,[172][173][174] Bi 2 S 3 , [175] HgTe, [62,176,177] InAs, [63] InP, [178,179] etc. Table 6 summarizes the recent reports of photovoltaic performance for these potential binary QD-based QDSCs.…”

Nonfullerene organic photovoltaic cells exhibiting 13.76% efficiency by employing upside‐down solvent vapor annealing

“…[1][2][3][4][5][6][7][8] Evolution of nonfullerene acceptor particularly plays a vital role for achieving highperformance OPVs. [1][2][3][4][5][6][7][8] Evolution of nonfullerene acceptor particularly plays a vital role for achieving highperformance OPVs.…”

“…Organic photovoltaic cells (OPVs) with bulkheterojunction structure have achieved significant progress, benefiting from the continuous material development and device optimization. [1][2][3][4][5][6][7][8] Evolution of nonfullerene acceptor particularly plays a vital role for achieving highperformance OPVs. Compared with traditional fullerene acceptors such as PC 61 BM or PC 71 BM, nonfullerene acceptors exhibit excellent optical absorption properties, easily tunable molecular energy levels, and potential for processing OPVs with low voltage loss.…”