Carbon nanodot-based heterostructures for improving the charge separation and the photocurrent generation

被引：22

作者：

Bettini, Simona ^{[1
,2
]}

Sawalha, Shadi ^{[1
,3
]}

Carbone, Luigi ^{[4
]}

Giancane, Gabriele ^{[2
,5
]}

Prato, Maurizio ^{[6
,7
,8
]}

Valli, Ludovico ^{[2
,9
]}

机构：

[1] Univ Salento, Dept Innovat Engn, Via Monteroni, I-73100 Lecce, Italy

[2] INSTM, Consorzio Interuniv Nazl Sci & Tecnol Mat, Via G Giusti 9, I-50121 Florence, Italy

[3] An Najah Natl Univ, Chem Engn Dept, Nablus, Palestine

[4] Univ Salento, CNR NANOTEC, Inst Nanotechnol, Campus Ecotekne,Via Monteroni, I-73100 Lecce, Italy

[5] Univ Salento, Dept Cultural Heritage, Via D Birago 48, I-73100 Lecce, Italy

[6] Univ Trieste, Dipartimento Sci Chim & Farmaceut, INSTM UdR Trieste, Ctr Excellence Nanostruct Mat CENMAT, Piazzale Europa 1, Trieste, Italy

[7] CIC BiomaGUNE, Carbon Nanobiotechnol Lab, Paseo Miramon 182, San Sebastian, Spain

[8] Ikerbasque, Basque Fdn Sci, Bilbao 48013, Spain

[9] Univ Salento, Dept Biol & Environm Sci & Technol, Via Monteroni, I-73100 Lecce, Italy

来源：

NANOSCALE | 2019年 / 11卷 / 15期

关键词：

UP-CONVERSION FLUORESCENCE; GRAPHENE QUANTUM DOTS; ONE-STEP SYNTHESIS; SOLID-STATE; PORPHYRIN; ENERGY; FILMS; POLYMER; NANOSTRUCTURES; NANOTUBES;

D O I：

10.1039/c9nr00951e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The possibility to employ carbon nanodots (CNDs) in solar devices was exploited by combining them with a fulleropyrrolidine derivative (FP2). The interaction between the two species was promoted by the presence of opposite electrostatic charges on CNDs (negatively charged) and FP2 (positively charged). The supramolecular dyad CNDs/FP2 generation was induced at the air/water interface of a Langmuir trough: water soluble CNDs were dissolved in the subphase and FP2 chloroform solution was spread on the subphase; the electrostatic interaction promoted the formation of the supramolecular adduct FP2/CNDs, which was then transferred onto solid substrates. Photo-induced charge transfer was promoted in the FP2/CNDs dyad and we demonstrated that the presence of CNDs increased the short-circuit current density, under light illumination, of a porphyrin-FP2/CNDs thin film by about 300% when compared with a more traditional porphyrin-FP2 solar device.

引用

页码：7414 / 7423

页数：10

共 77 条

[1] Design of organic molecules with large two-photon absorption cross sections [J].