Carbon Photodetectors - The Versatility of Carbon Allotropes
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2016-11-09 |
| Journal | Advanced Energy Materials |
| Authors | Moses Richter, Thomas HeumĂźller, Gebhard J. Matt, Wolfgang HeiĂ, Christoph J. Brabec |
| Institutions | Bavarian Center for Applied Energy Research, Friedrich-Alexander-Universität Erlangen-Nßrnberg |
| Citations | 65 |
Abstract
Section titled âAbstractâCarbonâbased organic electronics are a technology, with the potential of complementing and substituting optoâelectronic devices based on inorganic semiconductors and metals. In the group of organic semiconductors, carbon allotropes come with outstanding optoâelectric properties and are remarkable candidates for novel applications like printed electronics via solutionâprocessing on mechanically flexible, robust and light weight substrates, while reducing the environmental impact. Carbon allotropes like fullerenes, graphene quantum dots (GQD), carbon nanotubes (CNT), graphene and also diamond are especially interesting for photodetectors due to their tunable bandgap, high absorption coefficients and high charge carrier mobilites. These unique optoâelectric properties of the allotropes, which strongly depend on their molecular dimensionality (0D, 1D, 2D and 3D), allow each allotrope to be used in a preferential range. Hence, relying on the intrinsic properties of carbon allotropes or by hybridization, carbonâbased photodetectors are built for a spectral bandwidth, reaching from gammaârays to THz radiation. This review highlights the recent advances in photodetectors based on fullerenes, GQDs, CNTs, graphene and diamond, with the focus on room temperatureâoperated devices. The versatility of multiâdimensional carbon allotropes is outstanding, and promising results outline the maturing of all carbonâbased photodetection across the technologically relevant wavelengths.