Printing Fabrication and Morphology Optimization ofThin Film Solar Cells Under In-Line Conditions.
Abstract
We are proposing studies to investigate the fundamental principles underpinning thestructure and morphology of a range of photovoltaic materials comprise of activelayers that are organic- and perovskite-based. None-fullerene based electron acceptormaterials with largely varied absorption range will be used as a new avenue forimproving the device performance. Using in situ, in-line x-ray scattering anddiffraction methods to monitor the mechanism of crystal formation from the earlystages of formation in solution and phase separation kinetics by synchrotron-basedmethods. Multi-layer printing, comprised of active layer/interfacial layer will becarried out under industrially-relevant processing conditions. The performance of thedevices will be related to the structure and morphology of the active layers andinterfacial layer so that the morphology can be altered to optimize deviceperformance. New interfacial layers of both p- and n-type nature will be developedand incorporated in the prosed study. Tandem devices using all organic andorganic/perovskite sub-cells will be carried out using printing methods. Devicestabilities will be systematically investigated by examining the stability of themorphology and interface and by relating performances with morphological changes.These studies will be augmented by in operando studies where the performance andmorphology will be investigated as a function of time under an applied electric fieldand testing environment (e.g. temperature and moisture). These combined studies areaimed at gaining a fundamental understanding of the active layer, optimizing themorphology by varying the preparation conditions, and optimizing device interfacesunder conditions that are industrially relevant.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 03, 2017
- Source ID
- N000141712241
Entities
People
- Thomas Russell
Organizations
- Office of Naval Research
- United States Navy
- University of Massachusetts