| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 79652 | Solar Energy Materials and Solar Cells | 2011 | 5 Pages |
Small molecule organic solar cell with an optimized hybrid planar-mixed molecular heterojunction (PM-HJ) structure of indium tin oxide (ITO)/ poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) doped with 4 wt% sorbitol/ pentacene (2 nm)/ copper phthalocyanine (CuPc) (10 nm)/ CuPc: C60 mixed (20 nm)/ fullerene (C60) (20 nm)/ bathocuproine (BCP) (10 nm)/Al was fabricated. PEDOT: PSS layer doped with 4 wt% sorbitol and pentacene layer were used as interlayers between the ITO anode and CuPc layer to help the hole transport. And then the short-circuit current (Jsc) of solar cell was enhanced by inserting both the PEDOT: PSS (4 wt% sorbitol) and the pentacene, resulting in a 400% enhancement in power conversion efficiency (PCE). The maximum PCE of 3.9% was obtained under 1sun standard AM1.5G solar illumination of 100 mW/cm2.
Graphical abstractSmall molecule organic solar cell with an optimized hybrid planar-mixed molecular heterojunction (PM-HJ) structure of indium tin oxide (ITO)/ Poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) doped with 4wt% sorbitol/ pentacene (2nm)/ copper phthalocyanine (CuPc) (10 nm)/ CuPc: C60 mixed (20nm)/ fullerene (C60) (20nm)/ bathocuproine (BCP) (10 nm)/Al was fabricated. Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The power conversion efficiency (PCE) is greatly enhanced by a structure of double anode buffer layers. ► The function of PEDOT: PSS interlayer is to smooth the roughness of the ITO anode. ► The maximum PCE of 3.9% was obtained under 1sun standard AM1.5G solar illumination of 100 mW/cm2.
