GTSAXS - Revision history

KevinYager: /* Comparison */

2025-06-11T12:46:11Z

‎Comparison

KevinYager: /* References */

2024-09-05T15:58:04Z

‎References

KevinYager: /* References */

2021-12-22T17:46:04Z

‎References

KevinYager: /* References */

2021-12-22T17:43:44Z

‎References

KevinYager at 15:14, 1 December 2014

2014-12-01T15:14:55Z

KevinYager: Created page with "'''GTSAXS''', or '''Grazing-incidence Transmission Small-Angle X-ray Scattering''' is a variant of GISAXS; i.e. it is a surface-sensitive x-ray scattering technique. I..."

2014-12-01T14:59:38Z

Created page with "'''GTSAXS''', or '''Grazing-incidence Transmission Small-Angle X-ray Scattering''' is a variant of GISAXS; i.e. it is a surface-sensitive x-ray scattering technique. I..."

New page

'''GTSAXS''', or '''Grazing-incidence Transmission Small-Angle X-ray Scattering''' is a variant of [[GISAXS]]; i.e. it is a surface-sensitive x-ray [[scattering]] technique. In GTSAXS, the x-ray beam is directed towards the ''edge'' of a sample (rather than the center). This small geometric difference allows the sub-horizon scattering (which is normally attenuated due to substrate [[absorption]]) to escape from the sample edge, and be recorded. This sub-horizon scattering is 'cleaner' than conventional GISAXS data. In particular, it suffers much less from the [[refraction]]-induced [[refraction distortion|distortion]] of [[reciprocal-space]] and the [[dynamic scattering|multiple scattering]] effects that plague conventional GISAXS.

==References==
* Lu, X.; [[Yager, K.G.]]; Johnston, D.; Black, C.T.; Ocko, B.M. '''[http://scripts.iucr.org/cgi-bin/paper?S0021889812047887 Grazing-incidence transmission X-ray scattering: surface scattering in the Born approximation]''' ''Journal of Applied Crystallography'' '''2013''', 46, 165–172. [http://dx.doi.org/10.1107/S0021889812047887 doi: 10.1107/S0021889812047887]
* Mahadevapuram, N.; Strzalka, J.; Stein, G.E. [http://onlinelibrary.wiley.com/doi/10.1002/polb.23261/abstract Grazing-incidence transmission small angle X-ray scattering from thin films of block copolymers] ''J. Polymer Sci. Part B Polymer Phys.'' '''2013''' 51, 602610. [http://dx.doi.org/10.1002/polb.23261 doi: 10.1002/polb.23261]
* Weidman, M.C.; [[Yager, K.G.]], Tisdale, W.A. [http://pubs.acs.org/doi/abs/10.1021/cm503626s Interparticle Spacing and Structural Ordering in Superlattice PbS Nanocrystal Solids Undergoing Ligand Exchange] ''Chemistry of Materials'' '''2015''' [http://dx.doi.org/10.1021/cm503626s doi: 10.1021/cm503626s]

@@ Line 6: / Line 6: @@
 ==Comparison==
-GTSAXS can be thought of as a combination of a transmission-scattering ([[TSAXS]]) and grazing-incidence ([[GISAXS]]). In some sense, it combines the simple of data analysis of TSAXS with the surface-sensitive probing of GISAXS.
+GTSAXS can be thought of as a combination of a transmission-scattering ([[TSAXS]]) and grazing-incidence ([[GISAXS]]). In some sense, it combines the simple data analysis of TSAXS with the surface-sensitive probing of GISAXS.
 [[Image:GTSAXS comparison table01.png|450px|center]]

← Older revision		Revision as of 17:43, 22 December 2021
Line 16:		Line 16:
	* Mahadevapuram, N.; Strzalka, J.; Stein, G.E. [http://onlinelibrary.wiley.com/doi/10.1002/polb.23261/abstract Grazing-incidence transmission small angle X-ray scattering from thin films of block copolymers] ''J. Polymer Sci. Part B Polymer Phys.'' '''2013''' 51, 602610. [http://dx.doi.org/10.1002/polb.23261 doi: 10.1002/polb.23261]		* Mahadevapuram, N.; Strzalka, J.; Stein, G.E. [http://onlinelibrary.wiley.com/doi/10.1002/polb.23261/abstract Grazing-incidence transmission small angle X-ray scattering from thin films of block copolymers] ''J. Polymer Sci. Part B Polymer Phys.'' '''2013''' 51, 602610. [http://dx.doi.org/10.1002/polb.23261 doi: 10.1002/polb.23261]
	* Weidman, M.C.; [[Yager, K.G.]], Tisdale, W.A. [http://pubs.acs.org/doi/abs/10.1021/cm503626s Interparticle Spacing and Structural Ordering in Superlattice PbS Nanocrystal Solids Undergoing Ligand Exchange] ''Chemistry of Materials'' '''2015''' [http://dx.doi.org/10.1021/cm503626s doi: 10.1021/cm503626s]		* Weidman, M.C.; [[Yager, K.G.]], Tisdale, W.A. [http://pubs.acs.org/doi/abs/10.1021/cm503626s Interparticle Spacing and Structural Ordering in Superlattice PbS Nanocrystal Solids Undergoing Ligand Exchange] ''Chemistry of Materials'' '''2015''' [http://dx.doi.org/10.1021/cm503626s doi: 10.1021/cm503626s]
		+	* Xinxin Xia, Tsz-Ki Lau, Xuyun Guo, Yuhao Li, Minchao Qin, Kuan Liu, Zeng Chen, Xiaozhi Zhan, Yiqun Xiao, Pok Fung Chan, Heng Liu, Luhang Xu, Guilong Cai, Na Li, Haiming Zhu, Gang Li, Ye Zhu, Tao Zhu, Xiaowei Zhan, Xun-Li Wang & Xinhui Lu [https://www.nature.com/articles/s41467-021-26510-6 Uncovering the out-of-plane nanomorphology of organic photovoltaic bulk heterojunction by GTSAXS]''Nature Communications'' '''2021''', 6226 [https://doi.org/10.1038/s41467-021-26510-6 doi: 10.1038/s41467-021-26510-6]

← Older revision		Revision as of 15:14, 1 December 2014
Line 1:		Line 1:
−	'''GTSAXS''', or '''Grazing-incidence Transmission Small-Angle X-ray Scattering''' is a variant of [[GISAXS]]; i.e. it is a surface-sensitive x-ray [[scattering]] technique. In GTSAXS, the x-ray beam is directed towards the ''edge'' of a sample (rather than the center). This small geometric difference allows the sub-horizon scattering (which is normally attenuated due to substrate [[absorption]]) to escape from the sample edge, and be recorded. This sub-horizon scattering is 'cleaner' than conventional GISAXS data. In particular, it suffers much less from the [[refraction]]-induced [[refraction distortion\|distortion]] of [[reciprocal-space]] and the [[dynamic scattering\|multiple scattering]] effects that plague conventional GISAXS.	+	'''GTSAXS''', or '''Grazing-incidence Transmission Small-Angle X-ray Scattering''' is a variant of [[GISAXS]]; i.e. it is a surface-sensitive [[x-ray]] [[scattering]] technique. In GTSAXS, the x-ray beam is directed towards the ''edge'' of a sample (rather than the center). This small geometric difference allows the sub-horizon scattering (which is normally attenuated due to substrate [[absorption]]) to escape from the sample edge, and be recorded. This sub-horizon scattering is 'cleaner' than conventional GISAXS data. In particular, it suffers much less from the [[refraction]]-induced [[refraction distortion\|distortion]] of [[reciprocal-space]] and the [[dynamic scattering\|multiple scattering]] effects that plague conventional GISAXS.
		+
		+	[[Image:Fig-TGSAXS-regimes04-simpler.png\|300px\|thumb\|center\|Geometry of a GTSAXS experiment. In the GTSAXS geometry, the x-ray beam is directed towards the edge of the substrate, so that the direct beam and nearby small-angle scattering can escape without being absorbed by the substrate.]]
		+
		+	[[Image:GTSAXS example data.png\|thumb\|500px\|center\|Example of [[GISAXS]] data (left) and GTSAXS data (right) for a 'fingerprint' pattern (vertical [[block-copolymer\|BCP]] lamellae). The higher incidence angle of GTSAXS moves the refraction-distortion (and the [[Yoneda]]) away from the data. The GTSAXS data is much 'cleaner', as it is not distorted and does not exhibit the 'peak splitting' that arises from multiple-scattering.]]
		+
		+	==Comparison==
		+	GTSAXS can be thought of as a combination of a transmission-scattering ([[TSAXS]]) and grazing-incidence ([[GISAXS]]). In some sense, it combines the simple of data analysis of TSAXS with the surface-sensitive probing of GISAXS.
		+
		+	[[Image:GTSAXS comparison table01.png\|450px\|center]]
		+
		+	The main disadvantage of GTSAXS is sample preparation: the material of interest must be near the ''edge'' of the substrate. Standard film preparation methods may not yield a representative material near edges. For instance, spin-coating frequently leads to material build-up near substrate edges; this thicker region will dominate the GTSAXS signal, and not be representative of the thin-film structure in the center of the substrate. This can be easily overcome by cleaving substrates, so as to expose a representative edge for probing.

	==References==		==References==

@@ Line 13: / Line 13: @@
 ==References==
 * Lu, X.; [[Yager, K.G.]]; Johnston, D.; Black, C.T.; Ocko, B.M. '''[http://scripts.iucr.org/cgi-bin/paper?S0021889812047887 Grazing-incidence transmission X-ray scattering: surface scattering in the Born approximation]''' ''Journal of Applied Crystallography'' '''2013''', 46, 165–172. [http://dx.doi.org/10.1107/S0021889812047887 doi: 10.1107/S0021889812047887]
 * Mahadevapuram, N.; Strzalka, J.; Stein, G.E. [http://onlinelibrary.wiley.com/doi/10.1002/polb.23261/abstract Grazing-incidence transmission small angle X-ray scattering from thin films of block copolymers] ''J. Polymer Sci. Part B Polymer Phys.'' '''2013''' 51, 602610. [http://dx.doi.org/10.1002/polb.23261 doi: 10.1002/polb.23261]
 * Weidman, M.C.; [[Yager, K.G.]], Tisdale, W.A. [http://pubs.acs.org/doi/abs/10.1021/cm503626s Interparticle Spacing and Structural Ordering in Superlattice PbS Nanocrystal Solids Undergoing Ligand Exchange] ''Chemistry of Materials'' '''2015''' [http://dx.doi.org/10.1021/cm503626s doi: 10.1021/cm503626s]
 * Liu, J.; Yager, K.G. [https://journals.iucr.org/m/issues/2018/06/00/hf5364/index.html Unwarping GISAXS data] ''IUCrJ'' '''2018''', 5, 737–752 [http://dx.doi.org/10.1107/S2052252518012058 doi: 10.1107/S2052252518012058]
-* Xinxin Xia, Tsz-Ki Lau, Xuyun Guo, Yuhao Li, Minchao Qin, Kuan Liu, Zeng Chen, Xiaozhi Zhan, Yiqun Xiao, Pok Fung Chan, Heng Liu, Luhang Xu, Guilong Cai, Na Li, Haiming Zhu, Gang Li, Ye Zhu, Tao Zhu, Xiaowei Zhan, Xun-Li Wang & Xinhui Lu [https://www.nature.com/articles/s41467-021-26510-6 Uncovering the out-of-plane nanomorphology of organic photovoltaic bulk heterojunction by GTSAXS]''Nature Communications'' '''2021''', 6226 [https://doi.org/10.1038/s41467-021-26510-6 doi: 10.1038/s41467-021-26510-6]
+* Xinxin Xia, Tsz-Ki Lau, Xuyun Guo, Yuhao Li, Minchao Qin, Kuan Liu, Zeng Chen, Xiaozhi Zhan, Yiqun Xiao, Pok Fung Chan, Heng Liu, Luhang Xu, Guilong Cai, Na Li, Haiming Zhu, Gang Li, Ye Zhu, Tao Zhu, Xiaowei Zhan, Xun-Li Wang & Xinhui Lu [https://www.nature.com/articles/s41467-021-26510-6 Uncovering the out-of-plane nanomorphology of organic photovoltaic bulk heterojunction by GTSAXS] ''Nature Communications'' '''2021''', 6226 [https://doi.org/10.1038/s41467-021-26510-6 doi: 10.1038/s41467-021-26510-6]