Pulse electropolymerization of high performance PEDOT/MWCNT counter electrodes for Pt-free dye-sensitized solar cells

Xiao, Yaoming; Lin, Jeng‐Yu; Tai, Sheng-Yen; Chou, Shu-Wei; Yue, Gentian; Wu, Jihuai

doi:10.1039/c2jm34425d

Cited by 190 publications

(76 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Um bom material para as células solares deve apresentar boa mobilidade ao transporte de cargas e boa estabilidade química na presença do eletrólito. 16,17 Uma fina camada de platina é depositada sobre óxidos condutores transparentes, sendo adotada como contraeletrodo nas CSSCs devido à sua elevada condutividade, atividade eletrocatalítica e estabilidade química.…”

Section: Células Solares Sensibilizadas Por Corantesunclassified

The Grätzel Solar Cell: A Proposal for Interdisciplinary Experimentation

et al. 2017

View full text Add to dashboard Cite

In this article an experimental work was evaluated to explore and disseminate solar energy thematic in an interdisciplinary way to different undergraduate courses. Initially the work was proposed as an activity of a post-graduation discipline for master and doctorate students. From this activity, it was applied an experiment on dye-sensitized solar cells, evaluated in different undergraduate courses in the form of short courses. Dye-sensitized solar cells were mounted by students, to better understand the construction and operation of these cells. Some adaptations were developed in the experiment for the classroom environment, for easier execution of the experiment. The knowledge obtained by students was evaluated from a questionnaire and the results are discussed. The adaptation of an experimental route involving solar cells in the undergraduate environment positively influenced the education of students.Keywords: Solar cell; chemistry education; interdisciplinarity. ResumoNesse artigo um experimento foi avaliado para explorar e difundir a temática de energia solar em um contexto interdisciplinar para diferentes cursos de graduação. Inicialmente o trabalho foi proposto como uma atividade de uma disciplina de pós-graduação para alunos de mestrado e doutorado. A partir dessa atividade, foi aplicado um experimento envolvendo células solares sensibilizadas por corante, avaliada em diferentes cursos de graduação na forma de minicursos. Células solares sensibilizadas por corante foram montadas pelos estudantes, para melhor compreensão sobre a construção e operação dessas células. Foram desenvolvidas algumas adaptações no experimento para o ambiente de sala de aula, facilitando sua execução, fora de um laboratório de pesquisa. Os conhecimentos obtidos pelos estudantes foram avaliados a partir de um questionário e seus resultados são discutidos. A adaptação de um roteiro experimental envolvendo células solares no ambiente de graduação influenciou positivamente na formação dos alunos.Palavras-chave: Célula solar; educação química; interdisciplinaridade.

show abstract

Section: Células Solares Sensibilizadas Por Corantesunclassified

The Grätzel Solar Cell: A Proposal for Interdisciplinary Experimentation

et al. 2017

View full text Add to dashboard Cite

show abstract

“…2c, the FT-IR spectrum of the pristine PEDOT:PSS showed peaks at 1209, 1143, and 1089 cm À1 which are originated from to C-O-C bond stretching in the ethylene dioxy group. 33,34 The C-S bond stretching peaks in the thiophene ring were observed at 977, 827, and 690 cm À1 . 33,34 The peaks assigned at 1544 and 1342 cm À1 correspond to C]C and C-C bonds, respectively.…”

mentioning

confidence: 99%

Highly conductive PEDOT:PSS treated by sodium dodecyl sulfate for stretchable fabric heaters

et al. 2017

View full text Add to dashboard Cite

In this study, the conductivity of poly (3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) was greatly enhanced by using sodium dodecyl sulfate (SDS) without damaging the fabric substrates. We suggest that blending and dipping methods using SDS which is compatible with natural and synthetic fabrics dramatically increase the conductivity of PEDOT:PSS to as high as 1335 S cm À1. Additionally, a highly stretchable fabric heater with high conductivity was successfully fabricated using SDS-modified PEDOT:PSS. The fabric heaters exhibited reversible electrical behaviour with cyclic loading of a tensile strain even larger than 80%. The increase in resistance with the tensile strain was significantly smaller than the calculated value for a rigid substrate because the fabrics with a weave structure exhibited interfibrillar contact effects with strain. For example, the resistance was increased by a factor of only 2.62 with 80% strain. The Joule heating behaviours of the fabric heaters were demonstrated at several different applied voltages and ambient temperatures, and the heat capacity and convective heat transfer coefficient were 2 J K À1 and 30 W m À2 K À1 , respectively. The results demonstrated that the method suggested in this work is not only efficient for greatly improving the conductivity but also simple and cost-effective for fabricating highly conductive and stretchable fabrics with various e-textile applications.

show abstract

“…This might be due to that the rough FeS 2 /MoS 2 nanosheets with large specific surface area provided a large number of catalytic sites, the array structure accelerated the electron transport, and the synergistic effect between FeS 2 and MoS 2 promoted the electrocatalytic activity, resulting in an observable enhancement of the J SC value and further increasing the DSSC's PCE. Moreover, in theory, the lower resistance, the higher fill factor (FF), therefore the improved fill factor (FF) can be attributed to the low R S value [10,19,20].…”

Section: /Imentioning

confidence: 99%

“…Moreover, in order to enhance the power conversion efficiency (PCE) of DSSCs, one important strategy to achieve high electrical conductivity and excellent catalytic activity of CEs is integrating the superior electrical conductivity from the multi-wall carbon nanotubes with large surface area and high electrocatalytic activity from various catalysts [10,[18][19][20]. Another strategy is establishing vertical array structure to enhance the CE's conductivity and synthesizing nanocomposites by adjusting the component elements and alternating the stoichiometry to improve the electrocatalytic activity of CEs [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…In the overall performance of DSSCs, the counter electrode (CE) is one of the crucial and indispensable components, because its functions are accelerating the triiodide/iodide (I 3 -/I -) reduction reaction and collecting electrons from external circuit [3]. The common strategy to reduce the cost of CE is seeking for low-cost substitutes to replace expensive platinum (Pt), such as Pt-metal alloys [4][5][6], carbon based materials [7,8], conducting polymers [9][10][11], and transition metal compounds [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation