Bulk Heterojunction Upconversion Thin Films Fabricated via One-Step Solution Deposition
Source abstract
Abstract
Upconversion of near-infrared light into the visible has achieved limited success in applications due to the difficulty of creating solid-state films with high external quantum efficiency (EQE). Recent developments have expanded the range of relevant materials for solid-state triplet-triplet annihilation upconversion through the use of a charge-transfer state sensitization process. Here, we report the single-step solution-processed deposition of a bulk heterojunction upconversion film using organic semiconductors. The use of a bulk heterojunction thin film enables a high contact area between sensitizer and annihilator materials in this interface-triplet-generation mechanism and allows for a facile single-step deposition process. Demonstrations of multiple deposition and patterning methods on glass and flexible substrates show the promise of this materials system for solid-state upconversion applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Luminescence and Fluorescent Materials · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical Engineering, Stanford University, Stanford, California 94305, United States
Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
Department of Chemistry, Stanford University, Stanford, California 94305, United States
Department of Electrical and Computer Engineering, University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
Funding
Defense Advanced Research Projects Agency · Basic Energy Sciences · Office of Naval Research · National Science Foundation
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