2022
DOI: 10.1002/solr.202101096
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Interfacial Molecular Doping at Donor and Acceptor Interface in Bilayer Organic Solar Cells

Abstract: Molecular doping is an effective means to tune the optoelectronic properties of organic semiconductors. Despite its versatility, its application in bulk heterojunction (BHJ) organic solar cells (OSCs) is still limited, especially blend‐cast doping. Difficulties in desolving molecular dopants in weakly polar solvents have led to the formation of undesired structures, with relatively high concentrations of dopants affecting the bicontinuous BHJ morphology. Bilayer OSCs are stacked structures with sequential depo… Show more

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Cited by 6 publications
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“…The device based on O‐Sb 2 S 3 presents much higher quantum yield in the wavelength region of 350–650 nm when compared with the A‐Sb 2 S 3 based device, which demonstrates that the O‐Sb 2 S 3 based device generates high photocurrent, leading to the larger integrated J SC value of 14.42 mA cm −2 than that of A‐Sb 2 S 3 ‐based device (13.59 mA cm −2 ). The bandgaps of A‐Sb 2 S 3 and O‐Sb 2 S 3 are determined to be 1.74 eV by plotting [ hν⋅ ln(1‐EQE)] 2 versus hν (Figure S9b) [13] . After that, the dark current measurement was then carried out to study current leakage.…”
Section: Resultsmentioning
confidence: 99%
“…The device based on O‐Sb 2 S 3 presents much higher quantum yield in the wavelength region of 350–650 nm when compared with the A‐Sb 2 S 3 based device, which demonstrates that the O‐Sb 2 S 3 based device generates high photocurrent, leading to the larger integrated J SC value of 14.42 mA cm −2 than that of A‐Sb 2 S 3 ‐based device (13.59 mA cm −2 ). The bandgaps of A‐Sb 2 S 3 and O‐Sb 2 S 3 are determined to be 1.74 eV by plotting [ hν⋅ ln(1‐EQE)] 2 versus hν (Figure S9b) [13] . After that, the dark current measurement was then carried out to study current leakage.…”
Section: Resultsmentioning
confidence: 99%