Chemical mist deposition of organic for efficient front- and back-PEDOT:PSS/crystalline Si heterojunction solar cells

Abstract

We have investigated an n-type crystalline Si (n-Si) heterojunction solar cell with organic conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) on a plane and isotropically textured n-Si substrate by using chemical mist deposition (CMD). The PEDOT:PSS layer was deposited uniformly on isotropically textured n-Si with the increased passivation of surface defects of n-Si and stronger adhesion rather than the spin-coated film by adjusting deposition parameters. The power conversion efficiency increased from 12.5% on plane n-Si to 16%–18.2% for both CMD coated front- and back-PEDOT:PSS/n-Si junction solar cells on the 2 × 2 cm2-sized isotropically textured substrate by combining with a 1–2-nm-thick Ba(OH)2 by CMD as a hole-blocking layer at the Al/n-Si interface. These findings originate from the increased passivation of surface dangling bonds of isotropically textured n-Si, resulting in strong inversion of the n-Si surface to p-type Si by the polymer.

溶液法制备硅/SnCl2处理的Ti3C2TxMXene肖特基结 太阳电池

“…S4, further confirming that the improved J sc for the SnCl 2 solution-treated devices is from the enhanced light absorption and further from the reduced light reflection because of the wrinkled surface of the MXene layers (see Fig. 2b) [56].…”

Performance analysis of p-MoTe2/n-MoSe2 -based bifacial solar cells with p+-N:Cu2O as BSF layer by SCAPS-1D

“…On the other side, for the case of the absorber layer, the thickness of 1000 nm, doping concentration of 10 19 cm −3 , and defect density of 10 15 cm −3 are chosen as optimized conditions for further use. ( ) [36][37][38] .…”

Silicon nanowire-incorporated efficient and flexible PEDOT:PSS/silicon hybrid solar cells

“…Li et al reported a PCE of 5.68% for an 18 μm planar THSCs by introducing a 2 nm amorphous Si layer to passivate the interface, which enhances the lifetime and thus improves the device performance. 59 The efficiency of the SiNW-THSCs can be improved further by providing better PEDOT:PSS coating and Si contact using different coating methods such as mist deposition, 60 varying the viscosity or modifying polymer solution, 61 and by passivating the surface of Si. 62 Furthermore, the performance stability of flexible THSCs after bending was also investigated for a fresh set of samples.…”