Effect of photoinduced charge displacement on organic optoelectronic conversion

Organic optoelectronic interfaces with anomalous transient photocurrent

“…It was noted that the BDTDA devices exhibited good rectification (B10 2 at AE2 V) in their current-voltage curves. 75 Though the contacts on both sides are blocking-type, only one barrier (10 nm) is dominant, and the other one is negligible due to an ultrathin width of 2 nm, which was calculated based on capacitance-voltage measurements, and would likely induce an ohmic contact.…”

Photovoltage Reversal in Organic Optoelectronic Devices with Insulator-Semiconductor Interfaces

“…In this case, the “OFF” transients with the larger intensity (>127 mW cm −2 ) was determined by the decay process of the laser with a response time of ~10 −4 s. In addition, all the MISM devices (>5 samples) exhibited similar behavior, i.e., both the “ON” and “OFF” transients consisted of two components and could be fitted by using Equations (1) and (7), when the light intensity was not very strong. We have also applied the equations to other type samples for which the double-layer model is also applicable (e.g., thick 4,4’-bis (1, 2, 3, 5-dithiadiazolyl) (BDTDA) films [ 26 ]) and found that the simulated curves could fit well with the experimental data ( Supplementary Figure S2 ).…”

Electron-Transfer Processes in Highly-Correlated Electron Systems of Thiazyl Radicals

“…Figure 15b depicts the log(J)log(V) plots, which are based on the data in Figure 15a. 133 It is notable that there are two regions in this curve with a crossover point at ca. 0.8 V. Below this crossover voltage, the JV curve demonstrates Shockley behavior, which is ascribed to the injection limited current.…”

“…133 Figure 15a shows the JV curve, which indicates the rectification behavior; the rectification rate can be estimated to be ca. 10 2 at «2 V. 133 This inferred behavior is reasonable, as the work functions of the two electrodes are different and noninjecting. Figure 15b depicts the log(J)log(V) plots, which are based on the data in Figure 15a.…”