Organic Conductive Materials
Organic Semiconductive Polymer: Verazol® HT Series (P3HT)
Feature 2: Photovoltaic Performance
By varying molecular weight of P3HT, the nanophase separation structure in the bulk heterojunction can be adjusted. This advantage is expected to allow control of OPV properties such as Jsc (short-circuit current) and Voc (open-circuit voltage).
P-type and n-type semiconductors are required to fabricate organic photovoltaics. P3HT is used for the p-type and fullerene is used for the n-type. Organic photovoltaics are produced by dissolving a mixture of these two types of organic semiconductors, coating the solution onto a base plate attached with electrodes to make a thin film, and finally, forming electrodes on the organic thin film. Since the fabrication process is so simple, organic photovoltaics are expected to become the next-generation solar cells.
The yellow areas in the above photos are P3HT and the black areas are fullerene (PCBM). As shown, a finer nanophase separation structure has been achieved by using higher molecular weight polymerization techniques.
Cell structure: ITO glass/PEDOT: PSS/P3HT:PCBM/LiF/Al, Cell area: 4 mm2
| P3HT | Brend ratio (P3HT:PCBM) (mg/ml) |
RMS (nm) |
Jsc (mA・cm2) |
Voc (V) |
F.F. | Eff (%) |
|---|---|---|---|---|---|---|
| Company A's product (equivalent to HT-005) Verazol® HT-005 Verazol® HT-030 |
20 : 20 20 : 20 9 : 9 |
9.03 16.5 4.47 |
10.3 11.1 11.4 |
0.59 0.54 0.55 |
0.60 0.64 0.61 |
3.6 3.8 3,8 |
・Performance is equivalent to competing products.
・The ultra-high molecular weight grade can reduce the amount of semiconductors, leading to cost savings.
・The ultra-high molecular weight grade provides a high level of smoothness.
Optical Properties
Photovoltaic Performance Assessment
Excellent Processability
Development of High-Performance Semiconductive Materials
Proposals for Joint Research and Synthesis Services
Organic Conductive Polymer: Verazol
Standard Grade: WED-S
High Conductivity Grade: WED-SM
Development Grade
Organic Dye Sensitizer MK-2 for Dye-Sensitized Solar Cells (DSSC)
Inquiries about organic conductive materials
