Page 454 - Organic Electronics in Sensors and Biotechnology
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Light (top)

                              x
                                    S                         D



                                   Au                        Au
                              t
                             d
                                            C 60  + ZnPc

                    Interface                   BCB
                     x = 0
                                     ITO



                                                 G G





                                               Light (bottom)

                        10 –5

                        10 –6
                                10 –5
                                     2.2 mW; through ITO
                        10 –7        2.9 mW; through ITO
                                     3.7 mW; through ITO
                                     3.7 mW; through Au
                       I d  (A)  10 –8  Drain current (A)  10 –6   2.9 mW; through Au
                                     2.2 mW; through
                                         Au
                                                          2.9 mW;  780 nm
                        10 –9              λ =  780 nm    2.2 mW; 780 nm
                                 –60  –30  0  30  60      3.7 mW; 780 nm
                                      Gate voltage (V)   Dark
                       10 –10                            21 μW; 530 nm
                                                         66 μW; 530 nm
                                                         110 μW; 530 nm
                       10 –11
                           –60    –40   –20     0     20    40     60
                                              V  (V)
                                               g
               FIGURE 8.17  Top: Device scheme of the C  and ZnPc-based
                                               60
               phototransistors. Bottom: Photoresponse of the above device fabricated
               in the author’s laboratory.
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