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The spectral response of the mixture composed of CuS nanoparticles and polyethylene powder was measured by the terahertz time-domain spectroscopy (THz-TDS). The low-frequency optical properties of pure CuS nanoparticles, including absorption coefficient, complex dielectric constants as well as conductivity, were calculated by the effective medium theory. The Lorentz theory of dielectric response and the Drude-Smith model of conductivity provide good fits on the measured dielectric function as well as conductivity, respectively. In addition, some terahertz optical properties, such as the frequency of the lattice vibration and the time constant for the carrier scattering, are also obtained by the fitting. Our investigation could help to reveal the material properties in the terahertz range and to find out the promising physical effect for special application.
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Keywords:
- terahertz /
- CuS nanoparticles /
- Lorentz theory /
- Drude-Smith model
[1] Liu G, Schulmeyer T, Brotz J, Klein A, Jaegermann W 2003 Thin. Solid. Films 431 477
[2] Chen J, Deng S Z, Xu N S, Wang S, Wen X, Yang S, Yang C, Wang J, Ge W 2002 Appl. Phys. Lett. 80 3620
[3] Bushkova O V, Andreev O L, Batalov N N, Shkerin S N, Kuznetsov M V, Tyutyunnik A P, Koryakova O V, Song E H, Chung H J 2002 J. Power Source 157 477
[4] Jin H, Hou Y B, Tang A W, Meng X G, Teng F 2006 Chin. Phys. Lett. 23 693
[5] Zhang W X, Wen X G, Yang S H 2003 Langmuir 19 4420
[6] Ewen J S, Franz G, Brett A S, Thomas W H 1991 Langmuir 7 2917
[7] Grijalva H, Inoue M, Boggavarapu S, Calvert P 1996 J. Mater. Chem. 6 1157
[8] Artemyev M V, Gurin V S, Yumashev K V, Prokoshin P V, Maljarevich A M 1996 J. Appl. Phys. 80 7028
[9] Brelle M C, Torres-Martinez G L, McNulty J C, Mehra R K, Zhang J Z 2000 Pure Appl. Chem. 72 101
[10] Han J, Zhu Z, Ray S, Azad A K, Zhang W, He M, Li S, Zhao Y 2006 Appl. Phys. Lett. 89 031107
[11] Han J, Zhang W, Chen W, Thamizhmani L, Azad A K, Zhu Z 2006 J. Phys. Chem. B 110 1989.
[12] Murphy J E, Beard M C, Nozik A J 2006 J. Phys. Chem. B 110 25455
[13] Baxter J B, Schmuttenmaer C A 2006 J. Phys. Chem. B 110 25229
[14] Xu X, Song L, Shi Y, Yang Y, Xie S, Wang L 2005 Chem. Phys. Lett. 410 298
[15] Wang W Z, Liu Z, Liu Y, Xu C, Zhang C, Wang G 2003 Appl. Phys. A 76 417
[16] Chen H, Qu Y, Peng W X, Kuang T Y, Li L B 2007 J. Appl. Phys. 102 074701
[17] Dorney T D, Bataniuk R G, Mittleman D M 2001 J. Opt. Soc. Am. A 18 1562
[18] Maxwell- Garnett J C 1906 Philos. Trans. R. Soc. 205 237
[19] Bruggeman D A G. 1935 Ann. Phys. 416 636
[20] Balkanski M 1972 Optical Properties of Solids (New York: North-Holland) Chap 8
[21] Smith N V 2001 Phys. Rew. B 64 155106
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[1] Liu G, Schulmeyer T, Brotz J, Klein A, Jaegermann W 2003 Thin. Solid. Films 431 477
[2] Chen J, Deng S Z, Xu N S, Wang S, Wen X, Yang S, Yang C, Wang J, Ge W 2002 Appl. Phys. Lett. 80 3620
[3] Bushkova O V, Andreev O L, Batalov N N, Shkerin S N, Kuznetsov M V, Tyutyunnik A P, Koryakova O V, Song E H, Chung H J 2002 J. Power Source 157 477
[4] Jin H, Hou Y B, Tang A W, Meng X G, Teng F 2006 Chin. Phys. Lett. 23 693
[5] Zhang W X, Wen X G, Yang S H 2003 Langmuir 19 4420
[6] Ewen J S, Franz G, Brett A S, Thomas W H 1991 Langmuir 7 2917
[7] Grijalva H, Inoue M, Boggavarapu S, Calvert P 1996 J. Mater. Chem. 6 1157
[8] Artemyev M V, Gurin V S, Yumashev K V, Prokoshin P V, Maljarevich A M 1996 J. Appl. Phys. 80 7028
[9] Brelle M C, Torres-Martinez G L, McNulty J C, Mehra R K, Zhang J Z 2000 Pure Appl. Chem. 72 101
[10] Han J, Zhu Z, Ray S, Azad A K, Zhang W, He M, Li S, Zhao Y 2006 Appl. Phys. Lett. 89 031107
[11] Han J, Zhang W, Chen W, Thamizhmani L, Azad A K, Zhu Z 2006 J. Phys. Chem. B 110 1989.
[12] Murphy J E, Beard M C, Nozik A J 2006 J. Phys. Chem. B 110 25455
[13] Baxter J B, Schmuttenmaer C A 2006 J. Phys. Chem. B 110 25229
[14] Xu X, Song L, Shi Y, Yang Y, Xie S, Wang L 2005 Chem. Phys. Lett. 410 298
[15] Wang W Z, Liu Z, Liu Y, Xu C, Zhang C, Wang G 2003 Appl. Phys. A 76 417
[16] Chen H, Qu Y, Peng W X, Kuang T Y, Li L B 2007 J. Appl. Phys. 102 074701
[17] Dorney T D, Bataniuk R G, Mittleman D M 2001 J. Opt. Soc. Am. A 18 1562
[18] Maxwell- Garnett J C 1906 Philos. Trans. R. Soc. 205 237
[19] Bruggeman D A G. 1935 Ann. Phys. 416 636
[20] Balkanski M 1972 Optical Properties of Solids (New York: North-Holland) Chap 8
[21] Smith N V 2001 Phys. Rew. B 64 155106
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