Reversed organic-inorganic hybrid tandem solar cells for improved interfacial series resistances and balanced photocurrents
- Reversed organic-inorganic hybrid tandem solar cells for improved interfacial series resistances and balanced photocurrents
- 김태희; 김연수; 최진영; 전준홍; 박원웅; 문선우; 김성민; 한승희; 김봉수; 이도권; 김홍곤; 김진영; 고민재; 김경곤
- Amorphous silicon; Organic solar cells; Hybrid tandem solar cells; Interfacial series resistance; Balanced photocurrents
- Issue Date
- Synthetic metals
- VOL 175, 103-107
- We report a promising approach to fabricate organic–inorganic hybrid tandem photovoltaic deviceswith a reversed configuration. High bandgap hydrogenated amorphous silicon (a-Si:H) was depositedwith plasma-enhanced chemical vapor deposition onto a solution-processed low bandgap organic pho-tovoltaic (OPV) subcell. Two important factors for efficient tandem solar cells, interfacial series resistance(RS,int) and balanced photocurrents, were investigated. The intimate interfacial contact eliminated theRS,int, and sufficient transmittance of the OPV front subcell led to the well-balanced photocurrents. As aresult, this reversed hybrid tandem device showed an enhanced efficiency of 3.3% and an open-circuitvoltage of 1.51 V.
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