Dataset: XRD XPS and Raman spectrum data
Deployment: Girguis_2013

XRD, XPS, and raman data from INSPIRE track 1.

Principal Investigator:

Peter Girguis (Harvard University)

Co-Principal Investigator:

David Clarke (Harvard University)

Contact:

Xiaofei Guan (Harvard University)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

INSPIRE Track 1: Microbial Sulfur Metabolism and its Potential for Transforming the Growth of Epitaxial Solar Cell Absorbers (INSPIRE_Pyrite)

Current State:

Final no updates expected

Version:

Final

Version Date:

2017-03-13

Data URL:

https://www.bco-dmo.org/dataset-deployment/684656/data

Expand/Collapse All

Description

X-ray diffraction (XRD) pattern of the iron substrate sample after electrodeposition.

X-ray photoelectron spectroscopy (XPS) of the synthetic mackinawite deposit for (a) Fe 2p spectrum and (b) S 2p spectrum, confirming the deposited sulfide is mackinawite and not stoichiometric pyrite.

Raman spectrum of iron pyrite nano-particles synthesized by the hot injection method at 200 deg C.

Methods & Sampling

Dataset acquisition description

X-ray diffraction (XRD):

An X-ray diffractometer (Bruker, D2 phaser) with a conventional Theta-2theta diffraction geometry was used to determine the crystalline phase of the deposit on an iron substrate.

X-ray photoelectron spectroscopy (XPS):

The elements (Fe and S) present in the thin film deposit and their chemical bonding states were identified by using XPS (K-Alpha, Thermo Scientific, MA). The spectra were collected using a 400 um spot size and 20 eV pass energy from an Al source after Ar plasma sputtering to remove any surface contamination.

Raman spectrum data:

The Raman spectrum of the iron pyrite nanoparticles were collected by using a LabRAM Aramis Raman system (Horiba Jobin Yvon, NJ) with laser excitation at 532 nm.

Data Processing Description

Dataset Processing Description

BCO-DMO Data Processing Notes:

- compiled multiple spreadsheets of data into one table.
- replaced blank cells with nd.
- reformatted column names to comply with BCO-DMO standards.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1344241	NSF Division of Ocean Sciences

Instruments

Raman Microscope

Supplied Name: LabRAM Aramis Raman system

Supplied Description:

Used to analyze Raman spectrum

Instrument Type

Generic Name: Raman Microscope

Generic Description:

The Raman microscope is a laser-based microscopic device used to perform Raman spectroscopy. The Raman microscope begins with a standard optical microscope, and adds an excitation laser, laser rejection filters, a spectrometer or monochromator, and an optical sensitive detector such as a charge-coupled device (CCD), or photomultiplier tube, (PMT). One example is the XploRA confocal Raman microscope (information from the manufacturer).

X-Ray Microscope

Supplied Name: Microscope

Supplied Description:

Used to measure xray defraction

Instrument Type

Generic Name: X-Ray Microscope

Generic Description:

An X-ray microscope uses electromagnetic radiation in the soft X-ray band to produce images of very small objects. The resolution of X-ray microscopy lies between that of the optical microscope and the electron microscope.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
data_type	Type of data described: XRD XPS or Raman1 and 2; Raman1 is the Raman spectrum of iron pyrite nano-particles; Raman2 is the Raman spectrum of an iron pyrite thin film formed on an iron pyrite substrate using the hot injection method.	unitless	datatype
theta2	2-Theta angle	degree	no_bcodmo_term
binding_energy	Binding energy of XPS	eV	no_bcodmo_term
intensity_type	Intensity measured for either Fe 2p or S 2p	unitless	no_bcodmo_term
raman_shift	Raman spectrum	centimeters	no_bcodmo_term
intensity	Raman spectrum and XRD intensity	arbitrary units	no_bcodmo_term

Database

Contribute Data

Dataset: XRD XPS and Raman spectrum data
Deployment: Girguis_2013

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: XRD XPS and Raman spectrum dataDeployment: Girguis_2013

Dataset acquisition description

Dataset Processing Description

Dataset: XRD XPS and Raman spectrum data
Deployment: Girguis_2013