N719染料测试报告

ClientReportTO:SuZhouChemSolarismCompany

DSSCsBasedonStandardTiO2Nanoparticle(Degussa,P25)

Photoanodes

(2009-02-25)

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ClientReportTO:SuZhouChemSolarismCompany

ExperimentalConditions

Dyes

1.2.

CommercialDyesolN719Dye,0.3mMinethanol

CommercialSuZhouN719Dye,0.3mMamixtureofacetonitrileandtertbutylalcohol(volumeratio,1:1)

Electrolytes

1.2.3.

0.5MLiI,0.05MI2,0.5M4-tertbutylpyridine

0.5Mtetrabutylammoniumiodide(TBAI),0.1MLiI,0.1MI2,and0.5M4-tert-butylpyridine

0.6MBMII(SuZhou),0.03MI2,0.1MGuSCN,0.5M4-tert-butylpyridine

alldissolvedinamixtureofacetonitrileandvaleronitrile(volumeratio,85:15)

PtCounterElectrode

1.2.

500nmPtfilmdepositedbysputtering(Ptmirror)ThermaldecompositiontransparentPtfilm

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ClientReportTO:SuZhouChemSolarismCompany

ExperimentalConditions

P25film

BETSurfaceArea:50m2/g,Porosity:about50%,FilmThickness:~12micron

P25film+TiCl4treatment

(byimmersingP25filmin0.1MTiCl4aqueoussolutionfor30minatroomtemperature)

Enhanceddyeadsorbingamount,betterinter-particleconnection,pureTiO2surface

SolarCellTestCondition

Oriealsolarsimulator100mW/cm2lightintensity,AM1.5Gfilter.ActiveElectrodeArea:0.25cm2

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HPLCspectra-SuZhouN719

Dye

Purity:~100%(214nmand254nm)

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HNMRspectra-SuZhouN719

Dye

Solvent:MeOD 400MHz

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Client Report

TO: SuZhou ChemSolarism Company

Result 1:Difference between Dyesol Dye and SuZhou Dye16

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Jsc (mAcm )

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P25, SuZhou Dye P25 TiCl4, SuZhou Dye P25, Dyesol Dye P25 TiCl4, Dyesol Dye

-2

4

0 0 200 400 600 800

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Photovoltage (mV)

Client Report

TO: SuZhou ChemSolarism Company

Result I: Difference between Dyesol Dye and SuZhou DyeSample P25, Suzhou Dye P25+ TiCl4, Suzhou Dye P25, Dyesol Dye P25+ TiCl4, Dyesol Dye Voc (mV) 774 784 773 785 Jsc (mA/cm2) 13.3 14.4 13.5 14.3 FF 0.63 0.67 0.63 0.65 Efficiency(%) 6.52 7.60 6.60 7.24

Electrolyte: 0.6M BMII, 0.03M I2, 0.1M GuSCN, 0.5M 4-tert-butylpyridine Pt: Sputtering Pt Mirror Conclusion: No evident performance difference can be detected between these two dyes. SuZhou dye is comparable to Dyesol dye. TiCl4 treatment can improve Voc Jsc as well as FF.7

Client Report

TO: SuZhou ChemSolarism Company

Result 2:Difference between different electrolyte16

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Jsc (mAcm )

8

LiI TBAI BMII

-2

4

0 0 200 400 600 800

Photovoltage (mV)

Client Report

TO: SuZhou ChemSolarism Company

Result II: Difference between different electrolyteSample LiI TBAI BMII (SuZhou) Voc (mV) 752 763 774 Jsc (mA/cm2) 11.4 13.4 13.3 FF 0.60 0.61 0.63 Efficiency(%) 5.17 6.14 6.52

P25 film, no TiCl4 treatment Dye: SuZhou dye Pt: Sputtering Pt Mirror Conclusion:Ø Performance degradation of solar cell based on LiI electrolyte is very significant, may be due to the contamination

of LiI electrolyte, since it has been used for nearly one year without additional protection.Ø BMII electrolyte (SuZhou) has significant benefit for the cell’s FF, as well as Voc. 9

Client Report

TO: SuZhou ChemSolarism Company

Result 3:Difference between different Pt counter electrode16

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Jsc (mAcm )

-2

Sputtering Pt Thermal Decomposition Pt8

4

0 0 200 400 600 800

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Photovoltage (mV)

Client Report

TO: SuZhou ChemSolarism Company

Result III: Difference between different Pt counter electrodeSample Sputtering Pt Thermal Decomposition Pt Voc (mV) 773 771 Jsc (mA/cm2) 13.5 13.6 FF 0.63 0.58 Efficiency(%) 6.60 6.11

P25 film, no TiCl4 treatment Dye: Dyesol dye Electrolyte: BMII (SuZhou) Conclusion: Sputtering Pt counter electrode is superior in FF, should be ascribed to its lower electron transfer resistance contributed to the total series resistance of the cell.

ClientComments

关于您司的N719染料和BMIMI离子液体,测试结果表明效果不错。结论1：测试结果显示你们的染料和Dyesol的染料没有明显的性能差异。结论2：使用离子液体效果对改善电池的填充因子FF和开路电压Voc效果明显，与文献报道的现象相符合。

btw，我们用P25做的电极，不是最好的电极材料。想要更高的效率必须自己合成TiO2小颗粒。

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