Charge transport model for photovoltaic devices based on printed polymer: Fullerene nanoparticles

Abstract

a b s t r a c tThe electrical transport properties of films derived from aqueous semiconducting nanoparticle are fully described by a phenomenological model that relates intrinsic film morphology to photovoltaic response. The model is applied to a new bulk heterojunction blend, composed of organic semiconducting nanoparticles formed from the polymer donor poly[{2,6-(4,8-didodecylbenzo[1,2-b:4,5-b']dithiophene)}-alt-{5,5-(2,5-bis(2-butyloctyl)-3,6-dithiophen-2-yl-2,5dihydropyrrolo[3,4-c]57pyrrole-1,4-dione)}] (P(TBT-DPP)) and the fullerene indene-C 60 -bisadduct (ICBA) synthesized by the miniemulsion method. The nanoparticle inks are printed from an aqueous dispersion onto flexible ITO-free substrates yielding power conversion efficiency of 2.6%.

Aqueous Nanoparticle Polymer Solar Cells: Effects of Surfactant Concentration and Processing on Device Performance

“…35,37,39 Our results confirm this for PDPP5T:[60]PCBM NP devices (Table 7). Addition of ethanol improves the J SC and PCE.…”

Unique p–n Heterostructured Water‐Borne Nanoparticles Exhibiting Impressive Charge‐Separation Ability

“…As af inal challenge, charge-separationc haracterization was performed by measuring photocurrent devicesw ith an annealed P3HT:PEG-C60 NPs active layer.B efore performing the experiments, we examined P3HT:PC 61 BM NPs prepared using SDS and decaethylene glycol hexadecyl ether (C 16 E 10 )s urfactants for systematic comparison with our resultsS DS and C 16 E 10 are representative ionic and nonionic surfactants, [6][7][8][9]37] respectively,f or water-borne organic semiconductor NPs, and their chemical structures are shown in Figure 15 a. Upon synthesizing the colloidsu nder the same conditions as the P3HT:PEG-C60 NPs (P3HT:0 .5 mg mL À1 ,P C 61 BM:2 0mgmL À1 , surfactant:2 0mgp er 8mL; we refer to this as the "L-concentration"i nt his section), they did not form perfect water beads, which is confirmed in the enlarged images of the bottom of vials and the TEM images of the colloidal solutions ( Figure 15 b and c).…”

“…[4,5] In particular, p-n heterostructured water-based colloids are of interest for the design of next-generation photovoltaic and electronic devices owing to their photoinduced charge-separationp roperties. [6] The groups of Janssen, [7] Belcher, [8] and Arias [9] used diketopyrrolopyrrole-quinquethiophene alternating copolymer (PDPP5T), poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl] (TQ1), and poly[{2,6-(4,8-didodecylbenzo [1,2-b:4,5-b']dithiophene)}-alt-{5,5-(2,5bis(2-butyloctyl)-3,6-dithiophen-2-yl-2,5dihydropyrrolo [3,4c]57pyrrole-1,4-dione)}] (PTBT-DPP), respectively,f or the p-type polymerc omponent with the same n-type PCBM, and they obtained PCEs over 2%.T hese device performances,h owever,a re still much lower than those of chlorinated-processed bulk heterojunction solar cells. [6] The groups of Janssen, [7] Belcher, [8] and Arias [9] used diketopyrrolopyrrole-quinquethiophene alternating copolymer (PDPP5T), poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl] (TQ1), and poly[{2,6-(4,8-didodecylbenzo [1,2-b:4,5-b']dithiophene)}-alt-{5,5-(2,5bis(2-butyloctyl)-3,6-dithiophen-2-yl-2,5dihydropyrrolo [3,4c]57pyrrole-1,4-dione)}] (PTBT-DPP), respectively,f or the p-type polymerc omponent with the same n-type PCBM, and they obtained PCEs over 2%.T hese device performances,h owever,a re still much lower than those of chlorinated-processed bulk heterojunction solar cells.…”

“…Dastoor et al reported organic solar cells with power conversion efficiencies (PCEs) of approximately 1.3 %b yu sing water-processable poly(3-hexylthiophene-2,5-diyl) (P3HT): [6,6]-phenyl-C 61 -butyric acid methyle ster (PCBM) NPs with the p-n heterostructure formulation. [6] The groups of Janssen, [7] Belcher, [8] and Arias [9] used diketopyrrolopyrrole-quinquethiophene alternating copolymer (PDPP5T), poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl] (TQ1), and poly[{2,6-(4,8-didodecylbenzo[1,2-b:4,5-b']dithiophene)}-alt-{5,5-(2,5bis(2-butyloctyl)-3,6-dithiophen-2-yl-2,5dihydropyrrolo [3,4c]57pyrrole-1,4-dione)}] (PTBT-DPP), respectively,f or the p-type polymerc omponent with the same n-type PCBM, and they obtained PCEs over 2%.T hese device performances,h owever,a re still much lower than those of chlorinated-processed bulk heterojunction solar cells.…”

Eco-friendly fabrication of PBDTTPD:PC71BM solar cells reaching a PCE of 3.8% using water-based nanoparticle dispersions

“…Such flexibility in largescale fabrication of devices eases the hurdles in manufacturing with respect to health, environment and handling safety. Several research groups have synthesized NP dispersions for OPV devices, using the miniemulsion or the reprecipitation method, mainly employing P3HT and polyfluorenes, and more recently also a few LBP [13,14,15,16,17]. With the reprecipitation technique, wherein no surfactant is used, a maximum efficiency of 4% was reached using blend NPs consisting of P3HT and the fullerene acceptor ICBA [13].…”