Electronic Supplementary Information (ESI) … r m a l i z e d P L i n t e n s i t y N o r m a l i z...

Electronic Supplementary Information (ESI) Influence of Linker Molecules on Interfacial Electron Transfer and Photovoltaic Performance of Quantum Dot Sensitized Solar Cells Junwei Yang, Takuya Oshima, Witoon Yindeesuk, Zhenxiao Pan, Xinhua Zhong*, and Qing Shen* Fig. S1 UV-vis absorption (black solid lines) and PL emission (red dashed lines, λ ex = 410 nm) spectra of CdSe (a), and CdSe x Te 1-x (b) QD dispersions in toluene; (c) TEM images of the obtained CdSe QDs and CdSe x Te 1-x QDs, respectively. 500 600 700 800 Normalized PL intensity Normalized absorbance Wavelength(nm) a) 500 600 700 800 900 Normalized PLintensity Normalized absorbance Wavelength(nm) b) Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is © The Royal Society of Chemistry 2014

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Transcript of Electronic Supplementary Information (ESI) … r m a l i z e d P L i n t e n s i t y N o r m a l i z...

Electronic Supplementary Information (ESI)

Influence of Linker Molecules on Interfacial Electron Transfer and

Photovoltaic Performance of Quantum Dot Sensitized Solar Cells

Junwei Yang, Takuya Oshima, Witoon Yindeesuk, Zhenxiao Pan, Xinhua Zhong*, and Qing Shen*

Fig. S1 UV-vis absorption (black solid lines) and PL emission (red dashed lines, λex =

410 nm) spectra of CdSe (a), and CdSexTe1-x (b) QD dispersions in toluene; (c) TEM

images of the obtained CdSe QDs and CdSexTe1-x QDs, respectively.

500 600 700 800

orm

alize

d PL

inte

nsity

Norm

alize

d ab

sorb

ance

Wavelength(nm)

500 600 700 800 900

Norm

alize

d PL

inte

nsity

Norm

alize

d ab

sorb

ance

Wavelength(nm)

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A.This journal is © The Royal Society of Chemistry 2014

Fig. S2 The J-V curves under dark condition of QDSCs based on different linker molecules.

0.0 0.1 0.2 0.3 0.4 0.5 0.6-5

-4

-3

-2

-1

Curr

ent D

ensit

y (m

A/cm

2 )

Voltage (V)

TGA-CdSe MPA-CdSe Cys-CdSe

Page 3: Electronic Supplementary Information (ESI) … r m a l i z e d P L i n t e n s i t y N o r m a l i z e d a b s o r b a n c e W a v e l e n g t h ( n m ) a) 5 0 0 6 0 0 7 0 0 8 0 0

Table S1. Photovoltaic Parameters for 5 QDSCs in parallel based on Different Link-molecules Capped CdSe QD Sensitizers.

linkers Jsc (mA·cm-2) Voc (V) FF (%) (%) (%)a

15.48 0.568 0.612 5.38 15.47 0.569 0.609 5.36 15.30 0.576 0.616 5.43 15.37 0.572 0.609 5.36

TGA

15.51 0.575 0.611 5.45

5.40±0.04

14.72 0.566 0.611 5.09 14.39 0.568 0.609 4.98 14.63 0.566 0.611 5.06 14.48 0.570 0.614 5.07

MPA

14.80 0.567 0.610 5.12

5.06±0.05

14.12 0.560 0.608 4.81 13.68 0.565 0.612 4.73 13.91 0.560 0.610 4.75 13.51 0.562 0.615 4.67

Cys

13.71 0.563 0.601 4.64

4.72±0.07

Page 4: Electronic Supplementary Information (ESI) … r m a l i z e d P L i n t e n s i t y N o r m a l i z e d a b s o r b a n c e W a v e l e n g t h ( n m ) a) 5 0 0 6 0 0 7 0 0 8 0 0

Table S2. Photovoltaic Parameters for 5 QDSCs in parallel based on Different Link-molecules Capped CdSexTe1-x QDs Sensitizers.

Linkers Jsc (mA·cm-2) Voc (V) FF (%) (%) (%)a

19.25 0.581 0.590 6.6019.20 0.583 0.596 6.6719.41 0.582 0.593 6.7019.55 0.583 0.593 6.76

TGA

19.77 0.577 0.583 6.65

6.68±0.06

18.30 0.578 0.606 6.41 17.91 0.588 0.592 6.24 18.11 0.580 0.599 6.29 18.12 0.581 0.607 6.39

MPA

18.47 0.581 0.587 6.30

6.33±0.07

17.19 0.571 0.598 5.87 17.27 0.577 0.598 5.96 17.33 0.576 0.601 6.00 17.31 0.580 0.589 5.91

Cys

17.28 0.575 0.605 6.01

5.95±0.06

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Electronic Supplementary Information (ESI) … r m a l i z e d P L i n t e n s i t y N o r m a l i z...

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Transcript of Electronic Supplementary Information (ESI) … r m a l i z e d P L i n t e n s i t y N o r m a l i z...