High efficiency graphene solar cells by chemical doping.

By Xiaochang Miao, S. Tongay, M. Petterson, K. Berke, A. Rinzler, B. Appleton, A. Hebard. Nano letters (Print), 2012

899 citations recorded by the source corpus.

We demonstrate single layer graphene/n-Si Schottky junction solar cells that under AM1.5 illumination exhibit a power conversion efficiency (PCE) of 8.6%. This performance, achieved by doping the graphene with bis(trifluoromethanesulfonyl)amide, exceeds the native (undoped) device performance by a factor of 4.5 and is the highest PCE reported for graphene-based solar cells to date. Current-voltage, capacitance-voltage, and external quantum efficiency measurements show the enhancement to be due to the doping-induced shift in the graphene chemical potential that increases the graphene carrier density (decreasing the cell series resistance) and increases the cell's built-in potential (increasing the open circuit voltage) both of which improve the solar cell fill factor.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/b47b87ec23b5c1241e8ef0ed87f6cba87e1a1754

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Citations in the corpus

Activated Carbon, Carbon Nanotubes and Graphene: Materials and Composites for Advanced Water Purification (2017, background): “Like CNTs, this material has received attention from the electronics industry due to attractive conductivity and thermal resistance properties, with application in circuitry, solar cells and batteries under investigated [165,166].”
Graphene, related two-dimensional crystals, and hybrid systems for energy conversion and storage (2015, background): “6% (50), whereas TCs based ongraphenedopedwithnitric acid used in an organic/silicon cell yielded h ~ 10.”
Mechanical properties of graphene and graphene-based nanocomposites (2017, background): “tems [9], strain sensors [10], electronics [11], supercapacitors [12,13], hydrogen storage [14] and solar cells [15,16].”