Hydrogen-related optical centers in natural diamond: An update

Research areas:

• Surfaces planétaires (2011 - 2016)

Year:

2007

Authors:

• Emmanuel Fritsch
• Thomas Hainschwang
• Laurent Massi
• Benjamin Rondeau

Journal:

NEW DIAMOND AND FRONTIER CARBON TECHNOLOGY

Volume:

17

Number:

2

Pages:

63-89

ISSN:

1344-9931

BibTex:

@article{WOS:000249076400003, author = "Emmanuel Fritsch and Thomas Hainschwang and Laurent Massi and Benjamin Rondeau", abstract = "Many absorptions in the infrared (IR) and UV-visible range in natural diamond have been related to the presence of hydrogen. The 3107 cm(-1) system is the most important system in the infrared range, and is related to hydrogen strongly linked to carbon and weakly linked to nitrogen. When the intensity of the 3107 cm-1 absorption is greater than that of the intrinsic band at about 2450 cm(-1), the diamond is called hydrogen rich (H-rich), and may exhibit specific optical properties; it is typically formed by cuboid growth. In total, about 90 sharp lines or absorption systems have been at least tentatively related to hydrogen in the infrared range (see Table 1); many of them have been documented very recently. Six groups of H-containing diamonds can be defined to help categorize such materials. Three families of color may be found for H-rich diamonds: the ``brown to grayish-yellow to green{{\&}#039;{\&}#039;} family, the ``gray to blue to violet{{\&}#039;{\&}#039;} family, and the ``chameleon{{\&}#039;{\&}#039;} family. The structure at the atomic level of the defects responsible for the component absorptions is still unknown. There seems to be no direct relationship between IR-active centers and visible centers. Furthermore, it is likely that not all the hydrogen is optically active, and the quantification of hydrogen concentration on the basis of optical absorption intensity remains a challenge.", extra = "PICL", issn = "1344-9931", journal = "NEW DIAMOND AND FRONTIER CARBON TECHNOLOGY", number = "2", pages = "63-89", title = "{H}ydrogen-related optical centers in natural diamond: {A}n update", volume = "17", year = "2007", }

Abstract:

Many absorptions in the infrared (IR) and UV-visible range in natural
diamond have been related to the presence of hydrogen. The 3107 cm(-1)
system is the most important system in the infrared range, and is
related to hydrogen strongly linked to carbon and weakly linked to
nitrogen. When the intensity of the 3107 cm-1 absorption is greater than
that of the intrinsic band at about 2450 cm(-1), the diamond is called
hydrogen rich (H-rich), and may exhibit specific optical properties; it
is typically formed by cuboid growth. In total, about 90 sharp lines or
absorption systems have been at least tentatively related to hydrogen in
the infrared range (see Table 1); many of them have been documented very
recently. Six groups of H-containing diamonds can be defined to help
categorize such materials. Three families of color may be found for
H-rich diamonds: the ``brown to grayish-yellow to green{''} family, the
``gray to blue to violet{''} family, and the ``chameleon{''} family. The
structure at the atomic level of the defects responsible for the
component absorptions is still unknown. There seems to be no direct
relationship between IR-active centers and visible centers. Furthermore,
it is likely that not all the hydrogen is optically active, and the
quantification of hydrogen concentration on the basis of optical
absorption intensity remains a challenge.