SYNTHESISOFCu2ZnSnS4 (CZTS)NANOCRYSTALS

MAY 02 2014

Hello You !

I’m

A Presentation for CHM 402 Lab Training Project- IV

Under guidance of : Dr. Angshuman Nag

INTRODUCTION

FIRST

THING

FIRST….

PRACTICAL

MEANS OF

SYNTHESIS

CHARACTERISATION

OF SYNTHESISED

CZTS NCs

20 30 40 50 60 70 80

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

(332)(008)

(224)

(312)(112)

(220)

(200)

(112)

(101)

Inte

nsity (

a. u.)

2 (degree)

Sample

CZTS

ZnS

THE

XRD

PROFILE

20 30 40 50 60 70 80

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

(332)(008)

(224)

(312)(112)

(220)

(200)

(112)

(101)

Inte

nsity (

a. u.)

2 (degree)

Sample

CZTS

ZnS

β

THE

XRD

PROFILE

100 200 300 400 500 600 700

Inte

nsity (

a. u.)

Raman shift (cm-1)

RAMAN ANALYSIS

ABSORPTION SPECTROSCOPY

400 600 800 1000 1200 1400 1600

0.0

0.2

0.4

0.6

0.8

1.0

Wavelength (nm)

Ab

so

rba

nce

1.6 1.8 2.0 2.2 2.4

0.0

0.2

(A

h)

2 (e

V2)

h(eV)

𝛼ℎ𝜗 = 𝐵(ℎ𝜗 − 𝐸𝑔)𝑚

SO, WHAT

DOES IT ALL

MEAN ?

THANK

O

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