Graphene for Transparent Electrodes and Organic Electronic Devices - Organic Solar Cells: Materials and Device Physics - page 96

Fig. 4.9 a Semitransparent inverted polymer solar cell with a structure of ITO/ZnO/
P3HT:PCBM/graphene oxide (GO)/graphene top electrode. b Fabrication of the ITO/ZnO/
P3HT:PCBM/GO device before depositing the top electrode (step A). Top lamination processes
of graphene electrodes by the graphene film transferring (steps B, C) and thermal annealing/
releasing processes (step D). a Reproduced with permission [ 55 ]. Copyright 2011, ACS

b Reproduced with permission [ 56 ]. Copyright 2011 AIP

Table 4.3 Summary of the device performances of the semitransparent polymer solar cells under
illumination (AM1.5G, 100 mW/cm 2 ) from the ITO side and the graphene side (parentheses) and
the device performance of the reference standard opaque device
ITO (grapheme)

J sc (mA/cm 2 ) V oc (V) FF PCE %

10 layers 0.54 (0.54) 10.50 (7.53) 0.44 (0.47) 2.50 (1.88)

8 layers 0.54 (0.54) 10.10 (7.70) 0.44 (0.49) 2.40 (2.04)

6 layers 0.54 (0.54) 8.62 (5.71) 0.39 (0.44) 1.82 (1.36)

3 layers 0.54 (0.54) 4.05 (3.19) 0.32 (0.33) 0.69(0.57)

Standard cell (Ag electrode) 0.52 11.5 0.55 3.30

constructed by maskless laser writing to store data directly has been demonstrated.
The data density reaches 500,000 bits/cm 2 using our current very limited pro-
cessing ability. The data storage has a high ON/OFF ratio and almost infinite
lifetime.