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- de Geest, S, et al.
(author)
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Undertaking nursing interventions throughout Europe : Research activities of the working group on cardiovascular nursing of the European Society of cardiology
- 2002
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In: European Journal of Cardiovascular Nursing. - 1474-5151 .- 1873-1953. ; 1:3, s. 167-169
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Journal article (peer-reviewed)abstract
- The working Group on Cardiovascular Nursing is actively involved in international research though the UNITE (Undertaking Nursing Research Throughout Europe) research program, a new initiative for the WGCN. A group of cardiovascular nursing researchers from a number of different European countries committed themselves to a research group that is designed to promulgate international research in the field of cardiac nursing. The first study was a survey on coronary risk factors in a cohort of cardiac nurses from Europe. At this moment four additional studies are planned aimed at the development of the nursing profession in Europe and improvement of care for patients with chronic cardiac disease. If, as hoped, these studies prove to be successful, it will provide the seed for other international collaborations of this type.
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- Schmidt-Mende, Lukas, et al.
(author)
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Self-organised Discotic Liquid Crystals for High Efficiency Organic Photovoltaics
- 2001
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In: Science. - Washington, DC, USA : American Association for the Advancement of Science. - 0036-8075 .- 1095-9203. ; 293:10 august, s. 1119-1122
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Journal article (peer-reviewed)abstract
- Self-organization of liquid crystalline and crystalline-conjugated materials has been used to create, directly from solution, thin films with structures optimized for use in photodiodes. The discotic liquid crystal hexa-perihexabenzocoronene was used in combination with a perylene dye to produce thin films with vertically segregated perylene and hexabenzocoronene, with large interfacial surface area. When incorporated into diode structures, these films show photovoltaic response with external quantum efficiencies of more than 34 percent near 490 nanometers. These efficiencies result from efficient photoinduced charge transfer between the hexabenzocoronene and perylene, as well as from effective transport of charges through vertically segregated perylene and hexabenzocoronene psystems. This development demonstrates that complex structures can be engineered from novel materials by means of simple solution-processing steps and may enable inexpensive, high-performance, thin-film photovoltaic technology
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