Nanostructured Silicon‐Based Heterojunction Solar Cells with Double Hole‐Transporting Layers

Shen, Suling; Zhang, Jie; Zhou, Shuang; Gao, Peng; Sun, Baoquan; Zhao, Ni; Wong, Ching‐Ping

doi:10.1002/aelm.201800070

Cited by 13 publications

(3 citation statements)

References 32 publications

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“…To solve these problems of nanostructured Si devices, many studies have been conducted in the past few years. One is to deposit a thin layer of oxide (such as Al 2 O 3 or SiO 2 ) [ 16–18 ] or insert a small organic molecular layer (such as copper(I) thiocyanate (CuSCN) or bis[(di‐4‐lylamino)phenyl]cyclohexane (TAPC)) [ 19,20 ] between nanostructured Si and PEDOT:PSS to passivate the surface of nanostructured Si. These passivation layers greatly extend the effective minority carrier lifetime and inhibit the carrier recombination of nanostructured Si.…”

Section: Introductionmentioning

confidence: 99%

Achieving a Record Open‐Circuit Voltage for Organic/Si Hybrid Solar Cells by Improving Junction Quality

Hou

Chen

et al. 2021

Solar RRL

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Nanostructured Si has attracted widespread attention due to its strong light‐harvesting ability, which is beneficial to improve the performance of solar cells. However, the poor contact of the organic/nanostructured Si interface and the large number of recombination centers on the Si surface result in an unsatisfactory open circuit voltage (VOC) and fill factor (FF) of the device. Herein, a simple and versatile method, Si nanowires modified with tetramethylammonium hydroxide (TMAH) and poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) doped with 3‐glycidoxypropyltrimethoxydsilane (GOPS), is proposed to improve the contact quality of the heterojunction. TMAH treatment adjusts the morphology of the Si nanowires and makes the surface smoother, effectively inhibiting surface recombination at the heterojunction interface. Moreover, the GOPS‐doped PEDOT:PSS solution can achieve conformal contact on the surface of nanostructured Si, which is more conducive to the extraction and separation of charges. As a result, a record VOC of 660 mV is obtained for PEDOT:PSS/nanostructured Si hybrid solar cells. In addition, the short circuit current density (JSC) is as high as 33.00 mA cm−2, and the FF is as high as 69.03%; therefore, the efficiency of the device reaches 15.01%. The results provide a simple and feasible strategy to improve the junction quality and performance of organic/Si solar cells.

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Section: Introductionmentioning

confidence: 99%

Achieving a Record Open‐Circuit Voltage for Organic/Si Hybrid Solar Cells by Improving Junction Quality

Hou

Chen

et al. 2021

Solar RRL

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“…Shen et al used copper thiocyanate and PEDOT:PSS on SiNWs as a double hole transport layer. The tetramethylammonium hydroxide-treated SiNW absorber-based device showed a PCE of 12.24% . Zhang et al reported a hybrid Si solar cell having a methyl/allyl organic monolayer as a surface passivating agent.…”

Section: Introductionmentioning

confidence: 99%

“…The tetramethylammonium hydroxide-treated SiNW absorber-based device showed a PCE of 12.24%. 17 Zhang et al reported a hybrid Si solar cell having a methyl/allyl organic monolayer as a surface passivating agent. The device delivered a PCE of 10.2%.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cuprous Oxide Nanocubes and Antimony Nanorods on the Performance of Silicon Nanowire-Based Quasi-Solid-State Solar Cell

2022

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Antimony nanorods (SbNRs) anchored to vertically aligned SiNWs serve as cosensitizers and enhance the light absorption of NWs, and their favorably positioned valence band (VB) coupled with their p-type semiconducting nature allows fast hole extraction from SiNWs. Photocorrosion of SiNWs is effectively prevented by a monolayer of N-[3-(trimethoxysilyl)propyl]aniline (TMSPA). Upon assembling a quasi-solid-state solar cell with a SbNRs@TMSPA@SiNW photoanode, a triiodide− iodide (I 3 − /I − ) redox couple-based gel encompassing dispersed p-type cuprous oxide nanocubes (Cu 2 O NCs) as the hole transport material. and an electrocatalytic NiO as the counter electrode, a power conversion efficiency (PCE) of 4.7% (under 1 sun) is achieved, which is greater by 177% relative to an analogous cell devoid of the Cu 2 O NCs and SbNRs. SbNRs at the photoanode maximize charge separation and suppress electron−hole and electron−I 3 − recombination at the photoanode/electrolyte interface, thereby improving the overall current collection efficiency. Concurrently, the Cu 2 O NCs facilitate hole scavenging from SbNRs or SiNWs and relay them rapidly to the I − ions in the electrolyte. Optically transparent and mesoporous NiO with a VB conducive to accepting electrons from FTO permits abundant interaction with I 3 − ions. The high PCE is a cumulative outcome of the synergistic attributes of SbNRs, Cu 2 O NCs, and NiO. The SbNRs@TMSPA@SiNWs/Cu 2 O-gel/ NiO solar cell also exhibits a noteworthy operational stability, for it endures 500 h of continuous 1 sun illumination accompanied by an ∼24.4% drop in its PCE. The solar cell architecture in view of the judiciously chosen components with favorable energy level offsets, semiconducting/photoactive properties, and remarkable stability opens up pathways to adapt these materials to other solar cells as well.

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Strategien zur Steigerung der Leistung von PEDOT:PSS/Si‐Hybrid‐Solarzellen

Sun

Xiong

et al. 2020

Angewandte Chemie

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Abbildung 13. a) AgNW-Film, hergestellt mit einer Lçsung mit 1.4 Gew.-% AgNW.D er Widerstand des AgNW/PEDOT:PSS-Films liegt im Bereich von 7 Wsq À1 bis 16 Wsq À1 .A us Lit. [111].C opyright 2014 Royal Society of Chemistry.b)Dreidimensionale AFM-Bilder von TCEs auf der Basis eines PEDOT:PSS/AgNW-Kompositso hne (links) und mit (rechts) GO-Bedeckung. Die GO-Deckschicht des AgNW-Films verminderte die Oberflächenrauheit von 160 auf 40 nm. Aus Lit. [108c].

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Nanostructured Silicon‐Based Heterojunction Solar Cells with Double Hole‐Transporting Layers

Cited by 13 publications

References 32 publications

Achieving a Record Open‐Circuit Voltage for Organic/Si Hybrid Solar Cells by Improving Junction Quality

Achieving a Record Open‐Circuit Voltage for Organic/Si Hybrid Solar Cells by Improving Junction Quality

Effect of Cuprous Oxide Nanocubes and Antimony Nanorods on the Performance of Silicon Nanowire-Based Quasi-Solid-State Solar Cell

Strategien zur Steigerung der Leistung von PEDOT:PSS/Si‐Hybrid‐Solarzellen

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