Undoping effect of electropolymerized polymer for two-layer organic photovoltaic ceils based on polymer/dye junction
✍ Scribed by Kaku Uehara; Akira Maekawa
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 370 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
The undoping effects of electropolymerized poly (3-methylthiophene) ( PMeT) and poly ( Nmethylpyrrole) ( PMPy ) on the open-circuit photovoltage V0c and on short-circuit photocurrent Jsc were investigated for two-layer organic photovoltaic cells based on the PMeT or PMPylvacuum-evaporated rhodamine B ( RB ) under the electrochemical doping level between -3 and t 3 V. The value of VOC of the undoped-polymer/RB cell was larger than that of the doped-polymer/RB cell. PMeT/RB and PMPy/RB cells gave the minimum value of JSc a t a doping level of 0 V. It was suggested that polarons and bipolarons states formed at a doping level of 0 V may work as a trap site for the carrier to decrease in J ~c . Undoping of the PMeT improved VOc and Jsc of the PMeT/RB two-layer organic photovoltaic cell together with its durability.