Recent advances and prospects of D₁:D₂:A non-fullerene ternary polymer solar cells

Abstract

Ternary polymer solar cells (PSCs) exhibit broader absorption band, greater poternial in micro-morphology regulation, energy level tuning, and other advantages compared with binary PSCs and is a facile and efficient...

A New Alcohol‐Soluble Polymer PFN‐ID as Cathode Interlayer to Optimize Performance of Conventional Polymer Solar Cells by Increasing Electron Mobility

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] To date, many attempts have been made to obtain efficient PSCs and a lot of effort has been put into them, including interfacial engineering, study of novel donor/acceptor materials, and optimizing the morphology. [19][20][21][22][23][24][25][26][27][28][29][30][31][32] By now, the power conversion efficiency (PCE) of PSCs has exceeded 19%. [33] During the development of PSCs, interfacial engineering has received a lot of attention for its ability to improve the photovoltaic parameters of PSCs and thus improve PCE.…”

“…[ 1–18 ] To date, many attempts have been made to obtain efficient PSCs and a lot of effort has been put into them, including interfacial engineering, study of novel donor/acceptor materials, and optimizing the morphology. [ 19–32 ] By now, the power conversion efficiency (PCE) of PSCs has exceeded 19%. [ 33 ]…”

Analysis of the solvent effects on the crystal growth of peripherally chlorinated boron subphthalocyanines

“…Fullerenes have some undesirable characteristics in OPVs such as their low light absorption coefficients in the visible and near infrared region, their general aggregation which causes them to crystallize resulting in poor device stability, and their lack of structural tunability. 5 This has led to the investigation of many other small molecules [6][7][8] and polymers [9][10][11][12] with electronic properties to address the gaps from fullerenes, which include synthetic methodologies for the formation of non-fullerene small molecules as electron-acceptors that have activity in the visible light and near infrared region and studies have shown diverse synthetic versatility for fullerene alternatives. [6][7][8] As examples of small molecules, boron subphthalocyanines (BsubPcs, Fig.…”

Enhancement Efficiency of Organic Photovoltaic Cells via Green Solvents and Nontoxic Halogen‐Free Additives

“…In order to evaluate the impact of the green additive EHB and processing solvent O‐XY on the morphology of the thin films, we characterized the information on the surface and inside of the films using AFM [ 29–36 ] and TEM, and they were exhibited in Figure . As seen in Figure 3a,b, the root mean square value (RMS) of the devices treated with 3% EHB is 0.88 nm, which is smaller than the without additives device (1.58 nm), the smaller RMS, the lower roughness of the blend film, probably due to the 3% EHB additives making the surface of the blend film more uniform, which contributes to the establishment of a good interpenetrating network structure, promoting dissociation of excitons, and providing a pass‐through path for charge transport.…”