Fully solution processed all inorganic nanocrystal solar cells

Literature Information

Publication Date 2014-06-23
DOI 10.1039/C4CP02403F
Impact Factor 3.676
Authors

Troy K. Townsend, Edward E. Foos


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Abstract

The effects of solution (sol) processed contacts of indium tin oxide (ITO-sol) and gold (Au-sol) on solar cells are tested. When combined with solution processed active layers of CdTe/CdSe, all-inorganic fully solution processed solar cells are produced on non-conductive glass substrates. Under AM 1.5G illumination, open circuit voltages (Voc), short circuit currents (Jsc) and efficiencies (η) of solar cells processed with evaporated Au and commercial ITO were found to be (Voc = 0.56 ± 0.04 V, Jsc = 17.2 ± 2.2 mA cm−2, η = 3.8 ± 0.4%), with Au-sol replacement (Voc = 0.54 ± 0.03 V, Jsc = 12.6 ± 1.0 mA cm−2, η = 2.0 ± 0.1%), with ITO-sol (Voc = 0.38 ± 0.04 V, Jsc = 12.3 ± 0.8 mA cm−2, η = 1.3 ± 0.2%), and with each layer solution processed (Voc = 0.49 ± 0.01 V, Jsc = 10.0 ± 1.5 mA cm−2, η = 1.5 ± 0.2%) with the champion fully-solution processed all-inorganic device showing η = 1.7%. Layers and devices were characterized with UV/Vis spectroscopy, optical profilometry, XRD, XPS and SEM. The results indicate that the reduced performance of the all-solution devices results primarily from increased roughness of the Au film and decreased conductivity of the ITO layer.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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