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Si- NanoCrystal

Red Green Blue

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•

•

• 4

liquid

gas

solid

Pre

ssur

e

Temperature

CO2(

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109 W / cm2 ( )

100W 1000( 2 )

km1500

••••

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Hot

CO2304.4 K, Tr=T/Tc=1.0009

••

PLA

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Si 1 1 1

Nd:YAG laser

pump

M

M

lens

CO2 in

CO2 out

8 mm 8 mm 8 mm

CO2 Si

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10,000 350,000

m5 nm

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Inte

nsity

(a.u

.)

650600550500450400Raman shift (cm-1)

crystal

amorphous

4.6 MPa

10.4 MPa

14.8 MPa

580560540520500480460Raman shift (cm-1)

Inte

nsity

(a.u

.)In

tens

ity (a

.u.)

600400200Raman shift (cm-1)

Parker, J. H. et al. Phys. Rev. 1967, 155, 712.

Pinczuk. A. et al. Phys. Rev. Lett. 1971, 26, 642.

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(a) (b)

(c) (d)

10

5

0

Inte

nsity

(a.u

.)

120011001000900Wav elength (nm)

Photon energy (eV)1.3 1.2 1.1 1.0

10

5

0

Inte

nsity

(a.u

.)

600550500450400350Wav elength (nm)

Photon energy (eV)3.6 3.0 2.6 2.4 2.2

10

5

0

Inte

nsity

(a.u

.)

800700600500Wav elength (nm)

Photon energy (eV)2.6 2.2 2.0 1.61.8

10

5

0

Inte

nsity

(a.u

.)

800700600500Wav elength (nm)

Photon energy (eV)2.6 2.0 1.61.82.2

(e)

4.56 MPa 14.8 MPa

11.0 MPa

30 m

Red Green

Blue NIR

R G B

1100 nm

max=430 nm

max=530 nmmax=670 nm

Bulkex=325 nm

ex=458 nm

ex=458 nm

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2.0

1.5

1.0

0.5

0.0

Inte

nsity

(a.u

.)

800750700650600550500Wavelength (nm)

Photon energy (eV)2.5 2.0 1.8 1.62.2

11.0 MPa 14.8 MPa 12.2 MPa 9.81 MPa 10.4 MPa 8.87 MPa 7.31 MPa 4.56 MPa

100

1

10

100

Inte

grat

ed in

tens

ity (a

.u.)

20151050

Pressure (MPa)

(gcm-3)0.1 0.2 0.4 0.6 0.7

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ex:

Si

LED

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••

••••

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