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Title: More stable hybrid organic solar cells deposited on amorphous Si electron transfer layer

We report on defect densities, performance, and stability of organic/inorganic hybrid solar cells produced using n-doped inorganic amorphous silicon-carbide layers as the electron transport layer (ETL). The organic material was poly-3-hexyl-thiophene (P3HT) and heterojunction was formed using phenyl-C{sub 71}-Butyric-Acid-Methyl Ester (PCBM). For comparison, inverted solar cells fabricated using Cs{sub 2}CO{sub 3} as ETL were fabricated. Defect densities and subgap quantum efficiency curves were found to be nearly identical for both types of cells. The cells were subjected to 2xsun illumination and it was found that the cells produced using doped a-Si as ETL were much more stable than the cells produced using Cs{sub 2}CO{sub 3}.
Authors:
; ;  [1] ;  [2]
  1. Iowa State University, Dept. of Electrical and Computer Engineering, Ames, Iowa 50011 (United States)
  2. Nazarbayev University, Astana (Kazakhstan)
Publication Date:
OSTI Identifier:
22300122
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 21; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BUTYRIC ACID; CESIUM CARBONATES; CRYSTAL DEFECTS; DOPED MATERIALS; ELECTRON TRANSFER; HETEROJUNCTIONS; ILLUMINANCE; LAYERS; ORGANIC SOLAR CELLS; POLYCYCLIC SULFUR HETEROCYCLES; QUANTUM EFFICIENCY; SILICON CARBIDES; STABILITY