Near-field optical beam-induced currents in CdTe∕CdS solar cells: Direct measurement of enhanced photoresponse at grain boundaries

2004 ◽  
Vol 85 (17) ◽  
pp. 3854-3856 ◽  
Author(s):  
S. Smith ◽  
P. Zhang ◽  
T. Gessert ◽  
A. Mascarenhas
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Direct Measurement ◽  
Near Field ◽  
Optical Beam ◽  
Induced Currents

Sub-micron Optoelectronic Properties of Polycrystalline Solar Cell Materials

2005 ◽  
Vol 865 ◽  
Author(s):  
S. Smith ◽  
R. Dhere ◽  
T. Gessert ◽  
P. Stradins ◽  
T. Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Grain Boundaries ◽  
Surface Passivation ◽  
Near Field ◽  
Spectroscopic Properties ◽  
Optoelectronic Properties ◽  
Cdte Solar Cells ◽  
Cell Structures ◽  
Photo Response

AbstractGeneration, transport and collection of carriers in polycrystalline (PX) solar cells and their constituent materials are poorly understood, and significantly different than in their single-crystal counterparts. Recent theoretical and experimental results have put forth the expectation that grain boundaries in PX-solar cell materials such as CdTe and CuInGaSe2, either as-grown or after appropriate post-growth treatment, may have electronic properties which are advantageous to charge separation and solar cell operation[1-3]. However, a microscopic picture of the spatial variations in the optoelectronic properties of these materials is, for the most part, still lacking. The goal of the work reported here is to explore the optoelectronic and spectroscopic properties of grain-boundaries in these materials at the nanometer length-scale, via novel, high-resolution optical techniques. Towards this end, a significant enhancement in photo-response near grain boundaries in CdTe solar cells, consistent with models put forth in reference 2, was observed via near-field Optical Beam Induced Current (n-OBIC) [4]. A systematic μ-PL study of the effect of CdC12-treatment on recombination in CdTe/CdS solar cell structures of varying thickness directly examined the variation in optoelectronic properties at grain-boundaries in this material, revealing the grain-boundary and surface passivation effects of this important post-growth processing step. For comparison, we also studied the effects of SiNx post-growth treatment and annealing on the photo-response of PX-silicon solar cells using n-OBIC. These results and our most-recent n-OBIC measurements in CdTe and CuInGaSe2 solar cells are discussed.

Origins of Contrast in Near-Field Scanning Optical Microscopy Photovoltage Images of Cu(In,Ga)Se2 Solar Cells

1997 ◽  
Vol 472 ◽  
Author(s):  
A. A. McDaniel ◽  
J. W. P. Hsu
Keyword(s):  
Solar Cells ◽  
Physical Properties ◽  
Grain Boundaries ◽  
Optical Microscopy ◽  
Near Field ◽  
Convincing Evidence ◽  
Two Factors ◽  
Scanning Optical Microscopy ◽  
Near Field Scanning

ABSTRACTPhotovoltage images of Cu(In,Ga)Se2 solar cells taken using near-field scanning optical microscopy (NSOM) show reduction of photoresponse along grain boundaries. Two factors might be responsible for this contrast. The first is that the topographic changes associated with the grains could cause the NSOM tip to move further from the sample, resulting in a reduction in photoresponse. The second possibility is that the contrast is due to real physical properties of the sample, e.g. higher recombination velocities near grain boundaries. We show convincing evidence that the major contribution to the contrast in the photovoltage images is due to the latter.

A direct measurement of higher photovoltage at grain boundaries in CdS/ CZTSe solar cells using KPFM technique

2018 ◽  
Vol 183 ◽  
pp. 34-40 ◽  
Author(s):  
Manoj Vishwakarma ◽  
Deepak Varandani ◽  
Christian Andres ◽  
Yaroslav E. Romanyuk ◽  
Stefan G. Haass ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Direct Measurement

Near Field Control for Enhanced Photovoltaic Performance and Photostability in Perovskite Solar Cells

Nano Energy ◽  
2021 ◽  
pp. 106388
Author(s):  
Mohammad Ismail Hossain ◽  
Md. Shahiduzzaman ◽  
Safayet Ahmed ◽  
Md. Rashedul Huqe ◽  
Wayesh Qarony ◽  
...  
Keyword(s):  
Solar Cells ◽  
Near Field ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Field Control

Optical beam induced currents in MOS transistors

1990 ◽  
Vol 12 (1-4) ◽  
pp. 381-388 ◽  
Author(s):  
Joachim Fritz ◽  
Rainer Lackmann
Keyword(s):  
Optical Beam ◽  
Mos Transistors ◽  
Induced Currents

Direct measurement of the absolute value of the interaction force between the fiber probe and the sample in a scanning near-field optical microscope

2002 ◽  
Vol 81 (8) ◽  
pp. 1503-1505 ◽  
Author(s):  
D. A. Lapshin ◽  
V. S. Letokhov ◽  
G. T. Shubeita ◽  
S. K. Sekatskii ◽  
G. Dietler
Keyword(s):  
Direct Measurement ◽  
Near Field ◽  
Interaction Force ◽  
Optical Microscope ◽  
Fiber Probe ◽  
Absolute Value ◽  
The Absolute

Effect of localized grain boundaries in semicrystalline silicon solar cells

1986 ◽  
Vol 59 (7) ◽  
pp. 2571-2576 ◽  
Author(s):  
Ryuichi Shimokawa ◽  
Yutaka Hayashi
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Silicon Solar Cells

Direct measurement of non-equilibrium solute segregation to grain boundaries

1969 ◽  
Vol 3 (9) ◽  
pp. 663-665 ◽  
Author(s):  
S.J. Bercovici ◽  
P. Niessen ◽  
J.J. Byerley
Keyword(s):  
Grain Boundaries ◽  
Direct Measurement ◽  
Solute Segregation ◽  
Non Equilibrium

Defect passivation grain boundaries using 3-aminopropyltrimethoxysilane for highly efficient and stable perovskite solar cells

Solar Energy ◽  
2021 ◽  
Vol 224 ◽  
pp. 472-479
Author(s):  
Ronghong Zheng ◽  
Shuangshuang Zhao ◽  
Hua Zhang ◽  
Haoyue Li ◽  
Jia Zhuang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Perovskite Solar Cells ◽  
Highly Efficient ◽  
Defect Passivation

Comprehensive rear surface passivation of superstrate Sb2Se3 solar cells via post-deposition selenium annealing treatments and the application of an electron blocking layer

2021 ◽  
Author(s):  
Giuk Jeong ◽  
Seunghwan Ji ◽  
Ji Woon Choi ◽  
Gihun Jung ◽  
Byungha Shin
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Grain Boundaries ◽  
Carrier Transport ◽  
Surface Passivation ◽  
Rear Surface ◽  
Blocking Layer ◽  
Electron Blocking Layer ◽  
Light Absorber ◽  
Post Deposition

Sb2Se3, a quasi-1D structured binary chalcogenide, has great potential as a solar cell light absorber owing to its anisotropic carrier transport and benign grain boundaries when the absorber layer is...

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