Abstract
Four ternary selenoantimonates, Ag2SbSe3(enH) (I), KCu2SbSe3 (II), Cu2SbSe3(pdaH 2)0.5 (III), and Cu2SbSe3(bdaH 2)0.5 (IV) (en = ethylenediamine, pda = propanediamine, bda = butanediamine) were synthesized by solvothermal reactions using amines as solvents. The structures consist of M/Sb (M = Cu, Ag) intermetallic layers connected by either protonated amines or potassium ions. The optical bandgaps of these compounds were estimated from their optical absorption spectra (Kubelka-Munk function) with the values ranging from 0.9 to 1.8 eV. Thermal conductivity measurements were carried out on I, III, and IV, as well as on related compounds Cu2SbSe3(en)0.5 and Cu 2SbSe3(en). In comparison with the inorganic counterpart compound CuSbSe2, the hybrid structures clearly show significantly reduced thermal conductivity, as a result of incorporation of inorganic-organic interface. The study demonstrates an effective approach to enhance the thermoelectric efficiency of such material systems.
| Original language | English |
|---|---|
| Pages (from-to) | 2604-2609 |
| Number of pages | 6 |
| Journal | Zeitschrift fur Anorganische und Allgemeine Chemie |
| Volume | 638 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - Dec 2012 |
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Keywords
- Intermetallic
- Selenoantimonate
- Semiconductors
- Thermal conductivity
ASJC Scopus subject areas
- Inorganic Chemistry
Cite this
Layered hybrid selenoantimonates with reduced thermal conductivity. / Chen, Yu Chu; Yao, Hongbin; Thiagarajan, Suraj; Wu, Min; Emge, Thomas J.; Yang, Ronggui; Yu, Shuhong; Li, Jing.
In: Zeitschrift fur Anorganische und Allgemeine Chemie, Vol. 638, No. 15, 12.2012, p. 2604-2609.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Layered hybrid selenoantimonates with reduced thermal conductivity
AU - Chen, Yu Chu
AU - Yao, Hongbin
AU - Thiagarajan, Suraj
AU - Wu, Min
AU - Emge, Thomas J.
AU - Yang, Ronggui
AU - Yu, Shuhong
AU - Li, Jing
PY - 2012/12
Y1 - 2012/12
N2 - Four ternary selenoantimonates, Ag2SbSe3(enH) (I), KCu2SbSe3 (II), Cu2SbSe3(pdaH 2)0.5 (III), and Cu2SbSe3(bdaH 2)0.5 (IV) (en = ethylenediamine, pda = propanediamine, bda = butanediamine) were synthesized by solvothermal reactions using amines as solvents. The structures consist of M/Sb (M = Cu, Ag) intermetallic layers connected by either protonated amines or potassium ions. The optical bandgaps of these compounds were estimated from their optical absorption spectra (Kubelka-Munk function) with the values ranging from 0.9 to 1.8 eV. Thermal conductivity measurements were carried out on I, III, and IV, as well as on related compounds Cu2SbSe3(en)0.5 and Cu 2SbSe3(en). In comparison with the inorganic counterpart compound CuSbSe2, the hybrid structures clearly show significantly reduced thermal conductivity, as a result of incorporation of inorganic-organic interface. The study demonstrates an effective approach to enhance the thermoelectric efficiency of such material systems.
AB - Four ternary selenoantimonates, Ag2SbSe3(enH) (I), KCu2SbSe3 (II), Cu2SbSe3(pdaH 2)0.5 (III), and Cu2SbSe3(bdaH 2)0.5 (IV) (en = ethylenediamine, pda = propanediamine, bda = butanediamine) were synthesized by solvothermal reactions using amines as solvents. The structures consist of M/Sb (M = Cu, Ag) intermetallic layers connected by either protonated amines or potassium ions. The optical bandgaps of these compounds were estimated from their optical absorption spectra (Kubelka-Munk function) with the values ranging from 0.9 to 1.8 eV. Thermal conductivity measurements were carried out on I, III, and IV, as well as on related compounds Cu2SbSe3(en)0.5 and Cu 2SbSe3(en). In comparison with the inorganic counterpart compound CuSbSe2, the hybrid structures clearly show significantly reduced thermal conductivity, as a result of incorporation of inorganic-organic interface. The study demonstrates an effective approach to enhance the thermoelectric efficiency of such material systems.
KW - Intermetallic
KW - Selenoantimonate
KW - Semiconductors
KW - Thermal conductivity
UR - http://www.scopus.com/inward/record.url?scp=84872862321&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872862321&partnerID=8YFLogxK
U2 - 10.1002/zaac.201200286
DO - 10.1002/zaac.201200286
M3 - Article
VL - 638
SP - 2604
EP - 2609
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
SN - 0044-2313
IS - 15
ER -