Polymer photodetector with voltage-adjustable photocurrent spectrum

Abstract

Improving light harvesting in polymer photodetector devices through nanoindented metal mask films J. Appl. Phys.External quantum efficiency versus charge carriers mobility in polythiophene/methanofullerene based planar photodetectors

Efficiency and spectral performance of narrowband organic and perovskite photodetectors: a cross-sectional review

“…This then leads to an ultranarrow photoresponse around the absorption onset of the photoactive layer. Indeed, photocarriers generated in such a spectral region have a more balanced transit time, hence recombination losses are not as severe [33,34,73,85,86,98,115]. By incorporation of carrier traps in the photoactive material, CCN operation can also be combined with a gain mechanism (CCNx in short form) [33,34].…”

“…While requiring particular arrangements with organic NBA-type devices, FWHM EQE figures (well) below 100 nm are the norm when employing the CCN approach, regardless of whether the photoactive material is organic or perovskite (figure 6) [28,33,34,73,85,86,98,[115][116][117][118][119]. The smallest EQE width across organic works was achieved by Zhong et al (FWHM EQE ≈15-20 nm) with organic blends featuring particularly sharp absorption onsets [86].…”

“…Filtered devices perform to narrower spectral passbands, as guaranteed by inherent dissipation of their out-of-passband photons. The spectral width of input-filtered devices made with various photoactive layers is typically at 40-80 nm [80-83, 133]; single-component internally filtered devices with gain based on P3HT:PCBM and P3HT:PC 70 BM give widths of 20-30 nm [30][31][32]; CCN devices are typically below 90 nm [33,73,85,98,115], and reach down to about 15-20 nm in the work of Zhong et al (F8BT blended with PDI nanoribbons) [86]. Finally, microcavity-based devices based on PBTTT:PCBM attain widths down to about 20 nm, provided that input filtering is concomitantly used [42].…”

Improving the sensitivity of a near-infrared nanocomposite photodetector by enhancing trap induced hole injection

“…[1][2][3][4][5][6] Since 2000, along with the rapid development of semiconducting polymer research, the polymer-based photodetectors have attracted more and more attentions due to their advantages of light weight, flexibility, and low-cost compared to traditional crystalline semiconductor based photodetectors. [7][8][9][10][11] The low free carrier concentration in intrinsic organic semiconducting materials combining with the charge blocking layers provides a mechanism to achieve a low noise current in polymer photodetectors despite of the existence of a large density of defects in these materials. [12][13][14][15] Recent rapid development in low-bandgap materials for polymer solar cell applications also provides many choices of materials for NIR photodetectors.…”

The analysis of the charge carrier photogeneration and recombination in conductive polymers: Photodetector applications

“…У току протеклих петнаест година фотодетектори на бази ПП достигли су по својим перформансама конвенционалне направе [25]. Интересовање за полимерске фотодетекторе (ПФ) непрекидно расте [26][27][28][29][30]. Значајна остварења у виду широкопојасних компоненти (са спектралним опсегом од ултраљубичасте преко видљиве до инфрацрвене области) високе детективности недавно су објављена [26,29,30].…”