Towards true contactless outdoor luminescence of silicon photovoltaic modules with inhomogeneous small area excitation source

2018 ◽  
Author(s):  
Bernd Doll ◽  
Jakob Kornhas ◽  
Johannes Hepp ◽  
Claudia Buerhop ◽  
Jens Hauch ◽  
...  
Keyword(s):  
Small Area ◽  
Excitation Source ◽  
Photovoltaic Modules

High Efficiency Stable a-Si Three Junction 12″ × 13″ Modules

1991 ◽  
Vol 219 ◽  
Author(s):  
Murray S. Bennett ◽  
A. Catalano ◽  
J. Newton ◽  
C. Poplawski ◽  
R. Arya ◽  
...  
Keyword(s):  
Preliminary Data ◽  
Small Area ◽  
High Efficiency ◽  
Scale Up ◽  
Large Area ◽  
Good Resistance ◽  
Photovoltaic Modules ◽  
Area Efficiency ◽  
Efficiency Losses ◽  
Area Deposition

ABSTRACTThree junction a-Si based photovoltaic modules have been made using a design which provides high initial efficiency and good resistance to photodegradation. The cells have a Si/Si/SiGe configuration in which the i-layer in the middle junction is 4000Å thick. The most efficient module measured to date has an aperture area efficiency of 9.82%. This design will limit light-induced efficiency losses to 15% or less, based on small area results, however defect related problems have increased this value to 17 – 23%. Preliminary data on the effect of shunts on stability is presented. We discuss various concerns related to large area deposition and scale-up.

Power loss mechanisms in small area monolithic-interconnected photovoltaic modules

2018 ◽  
Vol 26 (2) ◽  
pp. 158-164 ◽  
Author(s):  
R. Kimovec ◽  
H. Helmers ◽  
A.W. Bett ◽  
M. Topič
Keyword(s):  
Power Loss ◽  
Small Area ◽  
Photovoltaic Modules ◽  
Loss Mechanisms

Rocking Beam Microarea Diffraction Applied to Metallic thin Films

1976 ◽  
Vol 34 ◽  
pp. 396-397
Author(s):  
R. H. Geiss
Keyword(s):  
Thin Films ◽  
Electron Diffraction ◽  
Small Area ◽  
Objective Lens ◽  
Electron Optics ◽  
Metallic Thin Films ◽  
Transmission Electron Diffraction ◽  
Transmission Electron ◽  
Sample Height ◽  
Scanning Transmission

The theory and practical limitations of micro area scanning transmission electron diffraction (MASTED) will be presented. It has been demonstrated that MASTED patterns of metallic thin films from areas as small as 30 Åin diameter may be obtained with the standard STEM unit available for the Philips 301 TEM. The key to the successful application of MASTED to very small area diffraction is the proper use of the electron optics of the STEM unit. First the objective lens current must be adjusted such that the image of the C2 aperture is quasi-stationary under the action of the rocking beam (obtained with 40-80-160 SEM settings of the P301). Second, the sample must be elevated to coincide with the C2 aperture image and its image also be quasi-stationary. This sample height adjustment must be entirely mechanical after the objective lens current has been fixed in the first step.

Small area variations and socio-demographic correlates for the incidence of Crohn s disease and ulcerative colitis

2001 ◽  
Vol 120 (5) ◽  
pp. A458-A458
Author(s):  
J BLANCHARD ◽  
A WAJDA ◽  
P RAWSTHORNE ◽  
C BERNSTEIN
Keyword(s):  
Ulcerative Colitis ◽  
Small Area ◽  
Demographic Correlates

Continuity or change?

2015 ◽  
Vol 1 (2) ◽  
pp. 243-271 ◽  
Author(s):  
Liz Henty
Keyword(s):  
Bronze Age ◽  
Small Area ◽  
Economic Changes ◽  
Neolithic Transition ◽  
The Bronze Age

General archaeological accounts of Scotland tend to demonstrate broad ideas of the Neolithic transition to farming and the subsequent economic changes in the Bronze Age. Whilst they concentrate on important economic and cultural advancement they tend to lack discussions on cosmological change. This paper looks at one small area in Aberdeenshire to examine four different classes of monument that are found there: long mounds and long cairns; Recumbent Stone Circles; henges and Beaker burial sites. It argues that skyscape archaeology, through the use of archaeoastronomical techniques, can provide clues to cosmological change.

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