Illustration of the method for rapid hole expansion of photovoltaic bracket

Why are charge accumulations and electron recombination important in wide-bandgap perovskite solar cells?

Charge accumulations and electron recombination at the interfaces between perovskites and charge transporting materials are two critical factors significantly hindering the power conversion efficiency (PCE) and device stability of wide-bandgap perovskite solar cells (WBG PSCs).

Which hole extraction materials are used in planar heterojunction organic solar cells?

Two new hole- extraction materials, TPDI (5,10,15-triphenyl-5 H -diindolo [3,2- a :3′,2′- c ]carbazole) and TBDI (5,10,15-tribenzyl-5 H -diindolo [3,2- a :3′,2′- c ]carbazole), were synthesized and explored in planar heterojunction organic solar cells (OSCs).

Can hole-extracting monolayers improve the performance of metal-halide perovskite solar cells?

Hole-extracting monolayers have recently emerged as a valuable strategy to improve the performance of metal-halide perovskite solar cells. Albrecht et al. developed and advanced various hole-selective self-assembled monolayer forming agents such as 2PACz, MeO-2PACz, and Me-4PACz for high-performance perovskite solar cells.

Can hole transporting molecules improve device performance of PSCs?

Our findings offer a new strategy for the rational design of hole transporting molecules with controlled properties to enhance device performance of PSCs. A novel conjugated self-assembled molecule, XS13, is tailor-made for application in wide-bandgap (∼1.8 eV) inverted perovskite solar cells (PSCs).

How do you measure photovoltaic performance of a solar cell?

The current density–voltage (J-V) curves and photovoltaic parameters of PSCs were measured by a Newport solar simulator (Keithley series 2400, ORIEL-SOI3A) with a source meter at 100 mW cm −2 under AM 1.5 illumination which was calibrated by a silicon reference cell. The solar cell performances were examined with 0.09 cm 2 mask/aperture.

How efficient is a silicon heterojunction solar cell?

Prog. Photovolt. 21, 827–837 (2013). Yoshikawa, K. et al. Silicon heterojunction solar cell with interdigitated back contacts for a photoconversion efficiency over 26%. Nat. Energy 2, 17032 (2017). This study presents an efficient (PCE = 26.6%) c-Si solar cell with the IBC–SHJ architecture.