Electronic Supplementary Information Plasmonic Light Harvesting of Dye Sensitized Solar Cells by Au-Nanoparticles Loaded TiO2 Nanofibers

Rounak Naphade, Mukta Tathavadekar, Jyoti P.Jog, Shruti Agarkar* and Satishchandra Ogale*

Centre of Excellence in Solar Energy, National Chemical Laboratory (CSIR-NCL), Dr Homi

Bhabha Road, Pune, India, and Network Institute of Solar Energy (CSIR-NISE), New Delhi,

India.

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

ESI-I

Figure S1: HR-TEM image of TiO2: Au nanofibers.

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

ESI-II

0.0 0.2 0.4 0.6 0.80

4

8

12

16

Curr

ent D

ensit

y (m

A/cm

2 )

Voltage (V)

NP Cell NP + Au NF Cell(3 mol%) NP + Au NF Cell(5 mol%)

Figure S2: J-V characteristics for TiO2: Au nanofibers with 3 mol% and 5 mol% Au: Ti ratio.

Table S1: Photocurrent Density (J) – Voltage (V) Characteristics for NP Cell and NP + Au NF

Cell with 3 mol% and 5 mol% as Au: Ti ratio.

Name Voc (V) Jsc (mA/cm2) FF % η (%)

NP Cell 0.74 13.47 60.6 6.03

NP + Au NF Cell (3 mol%)

0.76 16.51 51.4 6.42

NP + Au NF Cell (5 mol%)

0.75 16.45 50.5 6.29

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

ESI-III

10 20 30 40 50 60 70 800

5

10

15

20

25

30

Z'

' (O

hms)

Z'(Ohms)

NP Cell NF Cell Au NF Cell

Figure S3 : Nyquist plots for NP Cell (blue), NF cell (olive) and Au NF cell(red) at Voc

12 14 16 18 200

5

Z'' (

Ohm

s)

Z'(Ohms)

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013