An Organic Optical Transistor Operated under Ambient Conditions

Pärs, Martti; Hofmann, Christiane C.; Willinger, Katja; Bauer, Péter; Thelakkat, Mukundan; Köhler, Jürgen

doi:10.1002/ange.201104193

Cited by 13 publications

(12 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Organic molecular switches may provide potential capability to applications in transmit, modulate and detect light or photons. Previous investigation of DTE derivatives indicates extreme potentials as all-optical transistors, whereas the fluorescence on/off ratio is not very high 7 .…”

Section: Q(t) Pmi-1dtementioning

confidence: 93%

“…Alternatively, fluorescent spectroscopy exhibiting high sensitivity provides another method to characterize the photoswitching properties of DTEs, which requires those DTEs that display both photochromism and fluorescence switching. Evidently, fluorescence switching is more promising than photochromism in all-optical switches and transistors [7][8][9] . A great deal of efforts have been taken to develop novel photoswitchable fluorescent DTE derivatives with high fluorescence quantum yields (F F ), on/off ratios and switching speeds [10][11][12][13][14][15][16] .…”

mentioning

confidence: 99%

See 1 more Smart Citation

A trident dithienylethene-perylenemonoimide dyad with super fluorescence switching speed and ratio

et al. 2014

View full text Add to dashboard Cite

Photoswitchable fluorescent diarylethenes are promising in molecular optical memory and photonic devices. However, the performance of current diarylethenes is far from satisfactory because of the scarcity of high-speed switching capability and large fluorescence on-off ratio. Here we report a trident perylenemonoimide dyad modified by triple dithienylethenes whose photochromic fluorescence quenching ratio at the photostationary state exceeds 10,000 and the fluorescence quenching efficiency is close to 100% within seconds of ultraviolet irradiation. The highly sensitive fluorescence on/off switching of the trident dyad enables recyclable fluorescence patterning and all-optical transistors. The prototype optical device based on the trident dyad enables the optical switching of incident light and conversion from incident light wavelength to transmitted light wavelength, which is all-optically controlled, reversible and wavelength-convertible. In addition, the trident dyad-staining block copolymer vesicles are observed via optical nanoimaging with a sub-100 nm resolution, portending a potential prospect of the dithienylethene dyad in super-resolution imaging.

show abstract

Section: Q(t) Pmi-1dtementioning

confidence: 93%

mentioning

confidence: 99%

A trident dithienylethene-perylenemonoimide dyad with super fluorescence switching speed and ratio

et al. 2014

View full text Add to dashboard Cite

show abstract

“…This demonstrates the possibility of modulating the fluorescence emission from a single nitrogen-vacancy by up to 80% for this chosen green excitation power. Quenching of fluorescence could be obtained with other molecular species by means of alternative mechanisms such as conformational transformation in photochromic molecules 21,22 , although these are intrinsically much slower than the electronic response time of our system. Nevertheless, unlike molecules or quantum dots 11,13 , nitrogen-vacancy centres are stable and bright emitters, allowing us to observe this effect at room temperature and over a long time span 15,18 .…”

mentioning

confidence: 99%

Fast optical modulation of the fluorescence from a single nitrogen–vacancy centre

et al. 2013

View full text Add to dashboard Cite

The much sought after optical transistor-the photonic counterpart of the electronic transistor-is poised to become a central ingredient in the development of optical signal processing. The motivation for using photons rather than electrons comes not only from their faster dynamics, but also from their lower crosstalk and robustness against environmental decoherence, which enable a high degree of integration and the realization of quantum operations . Here, we demonstrate that a single nitrogen-vacancy centre at room temperature can operate as an optical switch under non-resonant continuous-wave illumination. We show an optical modulation of more than 80% and a time response faster than 100 ns in the greenlaser-driven fluorescence signal, which we control through an independent near-infrared gating laser. Our study indicates that the near-infrared laser triggers a fast-decay channel of the nitrogen-vacancy mediated by promotion of the excited state to a dark band.Unlike charged particles such as electrons, photons interact extremely weakly with each other 3 . Therefore, an optical switch requires the mediation of a physical system to produce efficient photon-photon interactions. Different approaches to optical transistors have been proposed [4][5][6] , often based on nonlinearities in well-defined photonic resonators. More recently, a highfinesse optomechanical resonator has been used to demonstrate a transistor-like effect 7 . The ultimate goal for future optical commutation technologies is to rely on single atoms or molecules having the ability to manipulate light down to the single-photon level, which feature an intrinsically high nonlinearity and grant us access to exploiting the quantum nature of light 8 . In this direction, single-molecule optical processing has recently been achieved at low temperatures 2 . Furthermore, the inclusion of a third, dark state in the electronic structure of the atom or molecule has been argued to be particularly advantageous to reduce the effect of thermal decoherence 9,10 . The quest for operating such optical nano-transistors at room temperature is attracting considerable attention, as it would have a major impact on photonic technologies and enable high-speed signal processing in general.In parallel, research on single quantum emitters (either molecules or quantum dots) has focused on achieving stable and efficient light emission with well-defined properties [11][12][13][14] . However, a long-term stable source of single photons at room temperature still remains challenging with these emitters. In this context, nitrogen-vacancy centres in diamond have recently been intensely investigated owing to their emission stability. Nitrogen-vacancy centres are artificial atoms protected from their environment by 1 ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels, Barcelona, Spain, 2 ICREA-Institució Catalana de Recerca i Estudis Avançats, Barcelona 08010, Spain. † These authors contributed equally to this work. *e-mail: javier.garciadeabajo@icf...

show abstract

“…Among the various excellent works, recently Pärs et al reported on the possibility to covalently tether an organic semiconducting molecule such a perylene bisimide (PBI) to a dithinylcyclopentene (DCP) [183]. The molecular system would act as an optical transistor operating under ambient conditions (Figure 7.4).…”

Section: Photochromic Molecules and Organic Semiconductors Incorporatmentioning

confidence: 99%

Hybrid Organic/Photochromic Approaches to Generate Multifunctional Materials, Interfaces, and Devices

Orgiu

Samorı́

2016

Photochromic Materials: Preparation, Properties and Applications

View full text Add to dashboard Cite

Silicon industry's greatest strength has always relied on its ability to downscale device dimensions and generate low-cost functions regardless of the relatively high cost per area. Conversely, "van der Waals solids" relying on weak interactions such as organic semiconductors (OSs) have always been thought of complementing this requirement for low-cost production as well as large-area applications by virtue of their characteristic chemical versatility and easy processability. Hence, OSs hold a great potential for the integration in the everyday flexible electronics [1-22] as they feature a number of fundamental properties such as light emission , charge transport , and photovoltaic response .So far, synthetic pathways and processing of organic semiconductors have greatly improved and generated a variety of possible candidate molecules/ processes that are mature enough to meet the initially envisaged applications [97][98][99][100][101][102][103][104][105][106][107][108][109][110][111][112].Nevertheless, the initial desire for reducing the device size is ultimately getting to an end for the Si-based electronics because of the limitations coming from the photolithographic steps involved in the production process of the devices. In this regard, organic and polymer electronics, that is, the electronics based on organic and polymeric semiconductors, cannot complement its inorganic counterpart and the relentless need of miniaturization unless new challenging avenues are pursued.A new strategy can be envisaged in which molecular functions are integrated into organic semiconductors via a controlled combination with an additional molecular component featuring supplementary functions. This is the case of photochromic systems [113][114][115][116][117][118] that are small organic molecules capable of undergoing reversible isomerization upon light irradiation at definite wavelengths between (at least) two (meta)stable states exhibiting markedly different properties at the molecule level. In these molecular switches, the specific isomeric state is selected upon exposure to a light stimulus with a proper wavelength. The most common families of photochromic molecules, depicted in Figure 7.1, Photochromic Materials: Preparation, Properties and Applications, First Edition. Edited by He Tian and Junji Zhang.

show abstract

An Organic Optical Transistor Operated under Ambient Conditions

Cited by 13 publications

References 29 publications

A trident dithienylethene-perylenemonoimide dyad with super fluorescence switching speed and ratio

A trident dithienylethene-perylenemonoimide dyad with super fluorescence switching speed and ratio

Fast optical modulation of the fluorescence from a single nitrogen–vacancy centre

Hybrid Organic/Photochromic Approaches to Generate Multifunctional Materials, Interfaces, and Devices

Contact Info

Product

Resources

About