High response organic ultraviolet photodetectors based on 4,7-diphenyl-1,10-phenanthroline

Liu, Chunbo; Liu, Lihui; Che, Guangbo; Cui, Yun-Cheng; Wang, Qingwei; Li, Wenlian; Liu, Mei

doi:10.1016/j.solmat.2010.09.002

Cited by 15 publications

(6 citation statements)

References 24 publications

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“…In addition, highly efficient UV−PD with a peak photoresponse of 872 mA/W at −12V was achieved by selecting m−MTDATA and 4,7−diphen− yl−1,10−phenanthroline−(bathophenanthroline) (Bphen) as D and A materials. This value is the best reported for organic UV−PDs [19]. These accomplishments in organic UV−PDs mentioned above centred around fluorescent materials [14][15][16]19] and little attention has been paid to phosphorescent mate− rials [20,21].…”

Section: Introductionmentioning

confidence: 65%

“…This value is the best reported for organic UV−PDs [19]. These accomplishments in organic UV−PDs mentioned above centred around fluorescent materials [14][15][16]19] and little attention has been paid to phosphorescent mate− rials [20,21]. In this paper, we utilized m−MTDATA as electron donor, two phosphorescent Cu(I) complexes, CuDP and CuBP as electron acceptors to fabricate highly sensitive UV−PDs.…”

Section: Introductionmentioning

confidence: 97%

“…Recently, organic UV−PDs have achieved rapid progress due to their unique merits of simple fabrication processes, light weight, low cost and compatibility with flexi− ble substrates compared to their inorganic counterparts [8][9][10][11][12][13]. Presently, the studies about organic UV−PDs were prevailingly concentrated on small molecular materials [14][15][16][17][18][19]. For in− stance, organic UV−PD with a peak responsivity of 30 mA/W based on N,N'−diphenyl−N,N'−bis(3−methylphenyl)−(1,10 −bi− phenyl)−4,40−dia−mine (TPD) and tris−(8−hydroxyquinoline) aluminum(Alq 3 ) was reported [14], but its responsivity was very low probably owing to strong luminescence of Alq 3 as the acceptor and disadvantageous highest occupied molecular or− bital (HOMO) and lowest unoccupied molecular orbital (LUMO) level alignment of the donor (D)/acceptor (A) pair.…”

Section: Introductionmentioning

confidence: 99%

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Highly efficient organic ultraviolet photodetectors based on excellent Cu (I) complexes

Liu

et al. 2013

Opto-Electronics Review

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We demonstrate high response organic ultraviolet photodetectors using 4,4′,4″-tris[3-methyl-pheny(phenyl)amino]tri-phenylamine (m-MTDATA) and two novel Cu(I) complexes, [Cu(DPEphos)(PyPhen)]BF4 (CuDP)(DPEphos = Bis [2-(diphenylphosphino)phenyl]ether, PyPhen = pyrazino[2,3-f][1,10]phenanthroline) and [Cu(DPEbenz)(PyPhen)]BF4 (CuBP) (DPEbenz = 1,2-bis(diphenylphosphino)benzene) to act as the electron donor and acceptor, respectively. Strong photoluminescence quenching of m-MTDATA by Cu(I) complexes is observed manifesting the efficient photoinduced charge transfer that occurs between m-MTDATA and Cu(I) complexes. The optimized photodetector based on CuBP exhibits a maximum response of 276 mA/W at −12 V under an illumination of 365 nm UV light irradiation with an intensity of 1.75 mW/cm2. The high response is attributed to feasible energy level match, efficient electron transfer from m-MTDATA to CuBP and skillful device design. More detailed working mechanism of harvesting high performance is also discussed.

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Section: Introductionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Highly efficient organic ultraviolet photodetectors based on excellent Cu (I) complexes

Liu

et al. 2013

Opto-Electronics Review

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“…The onset oxidation potential of BHBT 2 pentamer started as low as 0.22 V. Thus, the calculated HOMO and LUMO energies from the voltammogram of BHBT 2 pentamer are correspondingly at ca. [27][28][29][30][31] Additionally, one can notices from this band diagram that the energy difference between LUMO offset of the donor and acceptor is large. Fig.…”

Section: Optical Thermal and Electrochemical Properties Of Bhbt 2 Pementioning

confidence: 85%

Synthesis and characterization of 2,2′-bithiophene end-capped dihexyloxy phenylene pentamer and its application in a solution-processed organic ultraviolet photodetector

et al. 2016

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In this work a new solution processable small organic material, namely 2,2'-Bithiophene end-capped dihexyloxy phenylene pentamer (BHBT2) was synthesized, characterized and applied in the fabrication of organic ultraviolet photodetector. The material was synthesized via Williamson etherification, bromination and Suzuki coupling. FTIR and NMR spectroscopies were recorded for the BHBT2 along with its optical, thermal and electrochemical properties. Finally, the BHBT2 was used as donor material to produce a solution-processed UV photodetector based on BHBT2:PC61BM organic active layer. Results showed that in the forward biasing, the photodetector exhibited photovoltaic effect with Jsc = 1.80 mA, Voc = 0.66 V, FF = 0.30 and PCE = 0.98 %, while in the reverse biasing, the photodetector exhibited fast, reversible and stable response with the highest detectivity of 1.47×10 9 Jones. The realization of efficient UV detection was attributed to the strong absorption of BHBT2 and PC61BM in the UV region. Hence, BHBT2 pentamer coupled with PC61BM can be considered as potential materials to be applied in the solution-processed organic UV photodetector.

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“…Si, ZnO, GaN, PbS, MoS 2 , etc) [33][34][35][36][37][38][39][40], organic (e.g. pentacene, triphenylamine, polybenzene, polythiophene, polyaniline, polypyrrole, etc) [41][42][43][44][45][46][47][48] and hybrid organic-inorganic (e.g. perovskite halide) [49][50][51][52] semiconductor materials.…”

Section: Introductionmentioning

confidence: 99%

The recent progress of triboelectric nanogenerator-assisted photodetectors

Guo

Cheng

2020

Nanotechnology

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Since 2012, triboelectric nanogenerator (TENG) has attracted significant interest from researchers in the field of energy conversion due to its unique output characteristics of high voltage, pulse and low current. In addition, recent advancements have demonstrated that photodetection platforms based on TENG exhibit great advantages such as being simple, low-cost, portable, with high sensitivity, high response, etc, and are environment friendly. Here, this article provides a comprehensive review on the state-of-the-art photodetectors based on TENG in recent years, and a detailed introduction to the structural design and potential mechanisms. It mainly focuses on self-powered photodetectors (including photodetectors as a load resistance of a TENG and photosensitive materials such as tribo-layer of TENG) and the modulation of photodetectors based on TENG (including utilizing the voltage of TENG as well as triboelectric microplasma). Finally, we put forward some perspectives and outlook, including structure engineering and mechanism guidance, for the future development of simple, high-performance and portable photodetectors based on TENG.

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High response organic ultraviolet photodetectors based on 4,7-diphenyl-1,10-phenanthroline

Cited by 15 publications

References 24 publications

Highly efficient organic ultraviolet photodetectors based on excellent Cu (I) complexes

Highly efficient organic ultraviolet photodetectors based on excellent Cu (I) complexes

Synthesis and characterization of 2,2′-bithiophene end-capped dihexyloxy phenylene pentamer and its application in a solution-processed organic ultraviolet photodetector

The recent progress of triboelectric nanogenerator-assisted photodetectors

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