Judul: Pengaruh Conformity, Devotion, dan Fanaticism terhadap Purchase Decision dan Repurchase Intention Produk Apple di Jabodetabek
Abstrak: Apple merupakan satu-satunya perusahaan yang meraih dua peringkat sekaligus dalam sepuluh besar “Top 100 Brand Loyalty Leaders 2019”. Akan tetapi, terdapat fenomena yang bertolak belakang dengan fakta di atas yaitu pangsa pasar Apple di Indonesia hanya menduduki posisi ke lima. Penelitian ini secara garis besar bertujuan untuk menganalisis pengaruh conformity, devotion, dan fanaticism terhadap purchase decision dan repurchase intention produk Apple di Jabodetabek. Teknik penentuan sampel dilakukan menggunakan non-probability sampling dengan metode quota sampling dan purposive sampling. Sumber data yang digunakan terdiri dari data primer dan data sekunder. Teknik analisis data yang digunakan adalah analisis deskriptif dan SEM PLS. Hasil dari penelitian ini menunjukkan bahwa conformity berpengaruh secara negatif dan kurang signifikan terhadap purchase decision tetapi signifikan terhadap repurchase intention. Devotion berpengaruh secara positif dan signifikan baik terhadap purchase decision maupun repurchase intention. Fanaticism berpengaruh secara positif dan kurang signifikan terhadap purchase decision tetapi signifikan terhadap repurchase intention. Purchase decision berpengaruh secara positif dan signifikan terhadap repurchase intention.
Keyword: conformity, devotion, fanaticism, purchase decision, repurchase intention

Judul: The Effect of Devotion, Fanaticism, and Green Brand towards Purchase Decision and Repurchase Intention of Starbucks Products in Jabodetabek
Abstrak: Starbucks merupakan merek minuman kopi yang telah memiliki sebaran secara global di beberapa negara di dunia, salah satunya Indonesia, dan berhasil menduduki peringkat pertama “Top 10 Most Valuable Restaurant Brands 2023”. Salah satu faktor yang membedakan Starbucks dengan merek lain yaitu komitmennya terhadap lingkungan. Penelitian ini bertujuan untuk menganalisis pengaruh devotion, fanaticism, green brand positioning, green brand knowledge, dan green brand attitude terhadap purchase decision dan repurchase intention produk Starbucks di Jabodetabek. Penelitian ini dilakukan di Jabodetabek dari Juni 2023 hingga Juli 2023 dan teknik penarikan sampel yang digunakan yaitu nonprobability sampling dengan metode quota sampling. Data yang digunakan bersumber dari data primer berupa kuesioner dan data sekunder berupa literatur terkait. Metode pengolahan dan analisis data yang digunakan adalah analisis deskriptif dan SEM-PLS melalui second order construct type reflective-reflective dengan teknik embedded two stage approach. Hasil penelitian menunjukkan bahwa fanaticism dan green brand attitude memiliki pengaruh yang signifikan terhadap purchase decision dan repurchase intention.
Keyword: devotion, fanaticism, green brand, Starbucks

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell